CN1234743A - Adhesive composition comprising polysiloxane - Google Patents
Adhesive composition comprising polysiloxane Download PDFInfo
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- CN1234743A CN1234743A CN 96180512 CN96180512A CN1234743A CN 1234743 A CN1234743 A CN 1234743A CN 96180512 CN96180512 CN 96180512 CN 96180512 A CN96180512 A CN 96180512A CN 1234743 A CN1234743 A CN 1234743A
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Abstract
A polysiloxane adhesive composition that is useful in attaching products to human skin. A disposable absorbent product may be prepared that includes the polysiloxane adhesive composition and that may be adhered directly to human skin and peeled off after use with little or no pain to the wearer.
Description
Invention field
The present invention relates to be adapted to object is adhered to adhesive composition on the human body skin, that contain polysiloxanes.More specifically, the present invention relates to contain a kind of disposable absorbent article of this adhesive composition, this product can directly stick on the human body skin and can peel off after use, and user is not almost had pain.
Background of invention
At present, disposable absorbent article is used in many applications widely.Typical disposable absorbent article comprises for example diaper, adult-incontinence articles, and mattress, sanpro such as sanitary towel and tampon, and other products such as cleaning wiping cloth, bib is hindered tippet or the unlined long gown of using binder, surgery to use.These disposable absorbent articles are generally suitable for absorbing many liquid, as water or saline, and body fluid such as urine, menstrual fluid and blood.
Typically, the application target of disposable absorbent article is the control human body waste.Be the human body waste of control treatment liquid state, typically, disposable absorbent article comprises a kind of absorbing structure that at first Liquid Absorption must be gone into absorbing structure, and liquid is disperseed in absorbing structure, then liquid is remained in the absorbing structure.
For obtaining the liquid handling performance of required disposable absorbent article, disposable absorbent article to be fixed on the health of user usually.For example, sanitary towel's fixing normally with pressure sensitive adhesive sanitary towel being sticked in use realized on the underwear of user.Yet sanitary towel is fixed on has many shortcomings on the underwear.One to be that binding agent sticks to the inner surface place of underwear too strong, can stay residue.Another shortcoming is that sanitary towel will move along with moving of underwear, rather than the health that is accompanied by user moves and moves.This will cause inappropriate fixing, increase that liquid is omitted, overflowed, the probability of friction and uncomfortable generation.
In the past, people had done to attempt sanitary towel is directly sticked on the health of user.Yet this sanitary towel has to sufficiently large usually, contacts with the mons pubes hair of user and responsive genitals to prevent binding agent.This is because when sanitary towel being fixed on the user health, and this sanitary towel is used for the binding agent that various surgeries are used usually.Remove these binding agents and usually will cause unexpected pain, and user is produced discomfort.Therefore, these sensitizing ranges of avoiding contacting user are essential.
Therefore need a kind of can be used for that disposable absorbent article directly is fixed on adhesive composition on the user health, this disposable absorbent article uses comfortable, less relatively and be independently, give the user security in use, and user is produced discomfort removing Shi Buhui.
Summary of the invention
In the present invention, disposable absorbent article is adhered to adhesive composition on human body skin and the chaeta by a kind of can be used for, realized these and other above-mentioned relevant purpose, this adhesive composition when the user health peels off almost or do not have pain, and after removing, can on the user health, not stay the residue that can aware usually.
One aspect of the present invention is a kind of contact adhesive composition that contains silicone materials, and this adhesive composition has required bond properties.
In one embodiment of the invention, polyorganosiloxane adhesive composite has effective storage shear modulus, hardness, tan δ (tan delta) and maximum peeling strength performance.
In another embodiment of the present invention, polyorganosiloxane adhesive composite has following performance:
(a) the storage shear modulus value measured down of about 20 ℃ and about 10 radian per seconds is less than about 1 * 10
5Dynes/cm;
(b) hardness number is less than about 5 durometer units (Shore 00);
(c) the tan δZhi measured down of about 20 ℃ and about 10 radian per seconds of frequency is about 0.4～2.0;
(d) the detachment rate scope is that the maximum peeling strength value of measuring under about 0～5000 mm/min is about 35～900 gram forces/13 millimeters width.
On the other hand, be desirable to provide a kind of disposable absorbent article, as sanitary towel, this disposable absorbent article comprises a kind of contact adhesive.
In one embodiment, this purpose is to realize like this in disposable absorbent article, be that it comprises a liquid permeable topsheet, one egative film, absorbing structure between this top flat and egative film, at least one is fit to be adjacent to the first type surface of user health, and is stained with a kind of pressure-sensitive polyorganosiloxane adhesive composite on this first type surface.
Description of drawings
Fig. 1 is the plan view from above according to a kind of embodiment of disposable absorbent article of the present invention.
Fig. 2 is the sectional view of Fig. 1 of looking of 2-2 along the line.
Detailed Description Of The Invention
On the one hand, the present invention relates to a kind of contact adhesive group with improved required bond properties Compound, this adhesive composition can be used for directly skin and the chaeta of product adhesion the user On.
Here used " silicone materials " refers to a kind of silicon and oxygen atom alternately that contain, And hydrogen or various organic group are connected in the polymeric material on the silicon.
Pressure-sensitive polyorganosiloxane adhesive composite usually can be by solidifying the poly-of low-grade alkenyl official energy Siloxanes, as the hydrogen containing siloxane that contains the polysiloxanes of vinyl and contain active hydrogen group is altogether The mixture of polymers forms. Terminology used here " active hydrogen group " refers to that direct key is connected in The hydrogen of silicon atom is such as silicon hydrate and hydrogeneous organopolysiloxane. Bonding for the preparation of polysiloxanes The relative quantity of each component of agent will depend on these factors, such as alkene in uncured composition The mol ratio of base and active hydrogen group, and the character of these components comprise various variablees such as polymerization The thing chain length, molecular weight, polymer architecture, and wish the cohesive that adhesive composition has Energy.
Other acceptable initiation is crosslinked to prepare the side of required polyorganosiloxane adhesive composite Method comprises silanol condensation, and this condensation course uses organic peroxide, uses ultraviolet ray to cause Crosslinked, as to use free radical to cause hydrosilylation uses high-energy radiation crosslinked, or uses electron beam.
Be adapted to prepare the initiation material of polyorganosiloxane adhesive composite of the present invention, such as lower alkanols The silicone materials of alkenyl functional and the hydrogen containing siloxane copolymer material that contains active hydrogen group Material is known and can be obtained by these producers commodity, such as Dow Corning Corporation, Wacker Silicones Corporation and General Electric Corporation.
For the preparation of each component of polyorganosiloxane adhesive composite of the present invention, usually can be any Mode is mixed, and for example mixes with body or the form in organic solvent. Usually can have or not have Under the organic solvent, by simply required component being mixed preparation polyorganosiloxane adhesive group Compound, the amount of each component should be able to obtain required bond properties described here effectively. Usually former The order that material mixes is unimportant. The a kind of of preparation polyorganosiloxane adhesive composite suits Method is to realize that by the adhesive formula that uses two components wherein a kind of component contains lower alkanols The silicone materials of alkenyl functional, second component contains the hydrogen containing siloxane of active hydrogen group Copolymer material.
When raw material being mixed the preparation polyorganosiloxane adhesive composite, composition is opened usually Beginning solidifies with the proportional speed of the temperature of direct and composition. Generally can be at room temperature, or logical Cross heating combination and under higher temperature, solidify polyorganosiloxane adhesive composite. Solidify poly-silica The preference temperature of alkane adhesive composition is about 75～250 ℃.
Although the key component of adhesive composition of the present invention is made an explanation in front, this Kind of adhesive composition is not limited to this, and can comprise not required bonding to adhesive composition Other component that performance has a negative impact. Can be used as the expository material of interpolation component not limitedly Comprise, pigment, antioxidant, stabilizing agent, surfactant, wax, flow improver additive, particle, Inhibitor, catalyst, promoter, and add to improve the material of component processability.
Have now found that to have the polysiloxanes material of required bond properties described here by preparation Material can prepare with known jointing material and compare the pressure-sensitive adhesion with improved bond properties Agent.
The required bond properties of polyorganosiloxane adhesive of the present invention comprises, effectively shears the energy storage mould Value, hardness number, tan δ value and peel strength value.
Terminology used here " bonding " is meant the performance that substrate can be linked together by surface attachment of any material.This connection under the situation of pressure sensitive adhesive material, can obtain by exerting pressure, and perhaps under the situation of hot-melt adhesive, can obtain by sufficiently high temperature, so that adhesive material contacts with substrate and is connected.
The peel strength value of adhesive material is represented the bonding connection intensity of material.The peel strength value of wishing jointing material is too not high, because this illustrates that usually jointing material is too strong, therefore will cause pain when user skin is removed.And the peel strength value of wishing jointing material is too not low, because this illustrates that usually jointing material can not keep adhering to user skin effectively.
So adhesive composition of the present invention, at detachment rate is 0 to about 5000 mm/min, and the maximum peeling strength value of measuring according to the described method of the Test Methods section here, advantageously, be about 35～900 gram forces/13 millimeters width, be suitably about 120～750 gram forces/13 millimeters width, be about 210～360 gram forces/13 millimeters width preferablyly.
Binding agent goes out the hardness number of material and represents its deformation resistance.The hardness number of wishing adhesive material is too not high, because this illustrates that usually adhesive material seems too hard for the chaeta of imbedding in the binding agent, therefore can not adhere on the user health usually well.
Therefore advantageously, measure according to the described method of the Test Methods section here, the hardness number of adhesive composition of the present invention is less than about 5 durometer units (Shore 00), is suitably less than about 1 durometer unit (Shore 00), is about 0 durometer unit (Shore 00) preferablyly.
Loss modulus (the ratio of G ") and storage shear modulus (G ') is sheared in the tan δZhi representative of adhesive material.The tan δZhi of wishing the binding agent energy storage is too not high, so this common explanation adhesive material is too strong, and will cause pain when user skin is removed.The tan δZhi of wishing adhesive material simultaneously is too not low, because this cohesive that adhesive material is described usually is too low, therefore can not adhere to effectively on the skin of user usually.
Therefore advantageously, at about 20 ℃, frequency is under about 10 radian per seconds, measures according to the Test Methods section here described method, and the tan δZhi of adhesive composition of the present invention is about 0.4～2.0, be suitably approximately 0.7～2.0, be about 0.7～1.5 preferablyly.
The storage shear modulus value of adhesive material is represented the stretching motility of material.The storage shear modulus value of wishing adhesive material is too not high, because this flexibility that adhesive material is described usually is too poor, is relatively poor surgical appliance adhesive therefore, is consistent because binding agent can not move with the health of user.The storage shear modulus value of wishing adhesive material simultaneously is too not low because this usually explanation adhesive material lack enough cohesive strengths, therefore when user skin is removed, usually with fragmentation and stay residue.
Therefore advantageously, under about 20 ℃ and about 10 radian per seconds, measure according to the described method of the Test Methods section here, the storage shear modulus value of adhesive composition of the present invention is less than about 1 * 10
5Dynes/cm more advantageously is about 1 * 10
5～about 1 * 10
3Dynes/cm is suitably less than about 7 * 10
4Dynes/cm is less than about 2 * 10 preferablyly
4Dynes/cm.
Polyorganosiloxane adhesive composite of the present invention adapts to makes contact adhesive, and will promptly adhere on the solid support thing, no matter this solid support thing is flexible or hard.Can use any suitable application pattern,, polyorganosiloxane adhesive composite be imposed on the solid support thing surface, then as mentioned above with its curing as roller coat, blade coating and spraying etc.
On the other hand, the present invention relates to a kind of disposable absorbent article of polyorganosiloxane adhesive composite as described herein that contains.Be suitable for absorbing many liquid according to disposable absorbent article of the present invention, as water, saline, synthetic urine solution, and body fluid is as urine, menstrual fluid and blood, and be suitable for and make diaper, used product during adult-incontinence, mattress; Sanpro such as sanitary towel and tampon; And other disposable absorbent article such as cleaning wiping cloth, bib is hindered tippet or the unlined long gown of using binder, surgery to use.
Generally speaking the present invention relates to be fixed in disposable absorbent article on the user health by contact adhesive.A kind of disposable absorbent article is provided in one embodiment of the invention, this disposable absorbent article comprises a liquid permeable topsheet, an egative film that links to each other with top flat, absorbing structure between this top flat and egative film, at least one is fit to be adjacent to the first type surface of user health, and is stained with a kind of contact adhesive composition of the present invention on this first type surface.
One of ordinary skill in the art would recognize that and be suitable for the material of making top flat and egative film.Being suitable for the example make top sheet materials is the permeable material of liquid, as Unit Weight be about 15～25 grams/square metre spunbonded type polypropylene or polyethylene.Being suitable for the example of making stock footage is liquid-tight material, as polyolefin film, and the material of vapor permeable, as microporous polyolefin film.
Although one embodiment of the invention will be illustrated by means of the form of using adhesive composition of the present invention with disposable absorbent article such as sanitary towel, but be understandable that this adhesive composition is equally applicable to other disposable absorbent article known in those skilled in the art.Terminology used here " sanitary towel " is meant the women at a kind of goods that use near the pudendum place, and it is to be used for absorbing and keep the various exudates of discharging from health, as blood, menstrual fluid and urine.Sanitary towel abandons after should tending to once use.A part is placed in women's user vestibule, a part is placed on the outer interlabium of vestibule with goods also within the scope of the invention.
In the accompanying drawings for ease of understanding, identical numeral is the identical part of representative in different views and embodiment.A kind of embodiment that has shown sanitary towel 10 among Fig. 1 and Fig. 2.Although with common run-track shaped being described, sanitary towel 10 can the known any different shape of capable field technique personnel, as hourglass type, ellipse or similar shape.In the most basic embodiment, sanitary towel 10 has a pair of long limit 12 and 14, transverse end 16 and 18, the stick portion 22 of absorbent cores 20 and side.Sanitary towel 10 has a first type surface 24 that is suitable near the placement of user health at least.That is to say that first type surface is that softness and liquid are permeable.Being positioned at the distally of body-facing surface 24, is the stop portions 26 of a fluid impermeable.
Typically, the stop portions 26 of liquid non-permeate can be designed to allow air and steam to pass through to outer surface, but stop passing through of liquid simultaneously.Stop portions 26 can be made by one or more polymeric films, as polyethylene, and polypropylene, cellophane, or the laminate of film/non-woven fabrics etc.Stop portions 26 also can be made of the permeable material of liquid, the processed or coating of these materials and become liquid non-permeate.
With reference to Fig. 2, sanitary towel 10 comprises that one has the permeable covering 28 of liquid of body-facing surface 24.The position of this covering 28 is adjacent to absorbent cores 20.Be designed to the covering 28 with the user Body contact, can be made by the multiple polymers film, these films have eyelet so that fluid migration is gone into absorbent cores, perhaps by being easy to make body fluid sees through natural or fabric that synthetic material makes or non-woven fibre or line to make.The thermoplastic polymer film that makes by polyethylene or polypropylene preferably.Other spendable covering can be made by laminated film and fibre substrate.Perforate eye or embossing (not shown) on covering 28 also advantageously are to improve the speed that body fluid permeates and enter absorbent cores 20.
The position of side stick portion 22 is close to covering 28, and its form is for little point that is separated from each other or adhesive unit 30 open, that be rectangle basically, so that remaining most of area adhesive-free.The surface area of adhesive unit 30 is about 0.03～about 20 square centimeters of (cm
2), preferred about 0.15～about 15cm
2Measure from the body-facing surface 24 of covering 28, the thickness of adhesive unit is about 0.01～about 2 millimeters.Dot shown in Figure 1 contains and promisingly reaches enough adhesion with the result that obtains expectation and provide satisfied removal comfortableness and the minimum of required side stick portion 22.Usually, 22 fixed areas of stick portion are about 90% less than the area of body-facing surface 24, and preferred about 70% less than its area is most preferably less than about 20% of its area.
Should be understood that, for stick portion 22 being applied on the body-facing surface 24 of sanitary towel 10, can select any suitable bonding mode, as long as it is consistent with the concentration of required stick portion 22 on the body-facing surface 24, and sanitary towel's essential absorbtivity of 10 maintenances is got final product.For example, bonding mode can be ellipse, spiral type, the various linear or non-linear arrangement of length direction and/or transversal orientation, and can be formed between binder fibre or its combination and have the netted of without hindrance space.The shape of stick portion can be that open or closed.Open to the outside world is meant that stick portion is interruption or successive form, and this form does not cover one or more transverse end 16 and/or 18 of sanitary towel 10 basically." closure " is meant that stick portion has centered on absorbent cores 20.Preferably, the shape of stick portion 22 is basically corresponding to the configuration of absorbent cores 20.The shape of wishing stick portion 22 be about one axisymmetric, this is halved sanitary towel 10 and sanitary towel 10 is divided into the part that equates basically.When using sanitary towel 10, this will be to user with equilibrium sense.When health takes off sanitary towel 10, this also will reduce any relevant uncomfortable composition.
Can stick portion 22 be administered on the body-facing surface 24 in mode well known in the art.For example resembling 1991.2.26 authorizes among the U.S.P.4995333 of Keller etc. disclosed, binding agent 22 is utilized silk screen printing or be extruded on the body-facing surface 24 from one or more nozzles, here quote the full content of above-mentioned patent, and with its part as this description.
According to the disposable absorbent article of various aspects of the present invention, in use will be subjected to the repeatedly invasion and attack of body fluid usually.Therefore, wish that disposable absorbent article can absorb the repeatedly body fluid volume of invasion and attack that it in use will face.This repeatedly invasion and attack are normally free at interval.
Method of testing:
Peel strength
Use the improved 180 ° of antistripping methods of testing of following pressure sensitive adhesive tape association (PSTC-1), measure the peel strength of adhesive sample.PSTC-1 is a kind of standardized method of testing, it is in TestMethod (1992), done detailed description on the 23rd page of the 10th edition, this this book can be from Pressure Sensitive Tape Council 401 North Michigan Ave., Chicago, I11.60611-4267 obtains, and quotes its disclosure here, and as the part of this description.Peel strength value is measured according to following method.
The double-sided adhesive tape of about 13 mm wides is fixed on the top edge and the lower limb of the rustless steel test pieces of about 100 mm wides, 152 millimeters long.Adhesive tape is 3M#665, and by being positioned at St.Paul, the 3M Corporation of Minnesota obtains.The polyethylene film of 0.05 millimeters thick that sun is protruding is fixed on the two-sided limb girdle, with positive convex surface as test surfaces.Polyethylene film is by being positioned at Washington, and the Edison Plastic of Georgia obtains.Molding and cure adhesive sample on the polypropylene reinforcing membrane with an end of this polypropylene reinforcing membrane, are about to become to take as the leading factor an end of end, are securely fixed on the leading limit of non-Stretch material.Leading limit answers the peel strength of specific viscosity mixture more firm.With specimen International by Chemsul tant, the 2043 gram mechanical roller that Mentor, Ohio obtain are pressed together on the polyethylene film.Then immediately at peel strength tester, as by MTS Corp., Minneapolis carries out 180 ° of disbonded tests on the 810 section bar material pilot systems that MN55424 obtains.When being positioned over specimen in the tester, the initial distance of separation of tester jaw is set at 17.78cm.The steel test pieces is fixed on the static jaw (1.27cm), makes revocable leading limit extend through the position of static jaw.To dominate the limit doubling then, and be clamped in tester and move middle position in the jaw.Start tester then and carry out 180 ° of disbonded tests.Total distance that mobile jaw moves is 20.32cm, and the binding agent of test is positioned at intermediary 10.16cm place.The speed that can suitably peel off for the peel strength tester setting program with control.Here the program of employed peel strength tester is such, and promptly the every displacement 2.03em of jaw then makes peeling rate change.For total distance of the 20.32cm that mobile jaw moved, the initial speed of mobile jaw is about 100 mm/min, subsequently the speed of Yi Donging be respectively 300,500,700,900,1200,1800,2500,3500 and 5000 millimeters/minute.Peel strength with displacement is recorded on the monitor.At detachment rate is 0 to the scope of about 5000 mm/min, and the peak value of peel strength/distance Curve promptly is designated as maximum peeling strength.
Hardness
Use Shore 00 hardness-testing device,, measure the hardness number of adhesive sample, quote the full content of this method here according to the method for testing of ASTM D-2240-91.Hardness-testing device can be by Shore Instruments Manufacturing Company, Freeport, and New York obtains.Based on the Shore00 scale, the hardness number of adhesive sample is designated as durometer unit.
Rheological property
The rheological analysis of adhesive sample is a kind of method of measuring adhesive sample viscoelastic property.Use is by Rheometrics Inc., Piscataway, and the dynamic spectrometer of RDS IIE type rheology that New Jersey obtains carries out rheometer test, uses the method for recommending on the workbook, quotes its full content here.Adhesive sample during rheology testing thickness be about 1～about 4 millimeters.Adhesive sample is cut into the circle of 25 mm dias, and is placed on the parallel-plate anchor clamps of two 25 mm dias of spectrometer.Make under the top plate and drop on the adhesive sample, demonstrate slight deflection until the normal direction ergometer.The shear strain that is applied on the adhesive sample is about 1%.Under about 20 ℃, about 10 radian per seconds, measure the storage shear modulus of adhesive sample and shear the loss modulus value, and be designated as dynes/cm.Under about 20 ℃, about 10 radian per seconds, measure the tan δZhi of adhesive sample, and be designated as nondimensional value.
Embodiment:
With not commensurability needed raw material hand mix together, preparation polyorganosiloxane adhesive composite.Each polyorganosiloxane adhesive composite is all made 40 gram samples.
For sample 1～5,10 and 17, use the adhesive composition of two parts component to prepare polyorganosiloxane adhesive composite.The A part component of adhesive composition is clarifying liquid, and the Brookfield viscosity under about 25 ℃ is about 3250 centipoises.The B part component of adhesive composition is clarifying liquid, and the Brookfield viscosity under about 25 ℃ is about 3200 centipoises.The adhesive composition of two parts component is obtained by Dow Corning Corporation, and its trade mark is a SylgardQ3-6636 siloxanes electrolyte glue.
Among the embodiment 1,, use the A part component of 3.5 weight portions for the used B part component of per 6.5 weight portions.
Among the embodiment 2,, use the A part component of 4 weight portions for the used B part component of per 6 weight portions.
Among the embodiment 3,, use the A part component of 4.5 weight portions for the used B part component of per 5.5 weight portions.
Among the embodiment 4,, use the A part component of 5 weight portions for the used B part component of per 5 weight portions.
Among the embodiment 5,, use the A part component of 5.5 weight portions for the used B part component of per 4.5 weight portions.
Among the embodiment 10,, use the A part component of 5.5 weight portions for the used B part component of per 5 weight portions.
Among the embodiment 17,, use the A part component of 4.5 weight portions for the used B part component of per 6 weight portions.
For embodiment 7,12,14,16 and 18, use three kinds of feedstock production polyorganosiloxane adhesive composites.First kind of raw material is crosslinkable polydimethylsiloxaneresins resins system, it contains the silicon dioxide of trimethylization, four (trimethylsiloxy) silane, dimethyl siloxane with the dimethyl ethenyl blocking, this raw material is colourless to lurid liquid, and the proportion under 25 ℃ is about 1.05, and viscosity is about 35000 centistokes, can be obtained by Dow Corning Corporation, it is designated Dow Corning7938 Adhesive.Second kind of raw material is a kind of noble metal complex catalyst, it contains the polydimethylsiloxane of dimethyl ethenyl blocking, tetramethyl divinyl disiloxane and platinum siloxanes coordination compound, can be obtained by Dow Corning Corporation, its trade mark is syl-off 4000 catalyst.The third raw material is a polydimethylsiloxane liquid, and its viscosity is about 100000 centistokes, can be obtained by Dow Corning Corporation, and its trade mark is Dow Corning200Fluid.
Among the embodiment 7,, use the crosslinkable polydimethylsiloxaneresins resins system of 10 weight portions for the used noble metal complex catalyst of per 0.1 weight portion.Do not use polydimethylsiloxane liquid.
Among the embodiment 12,, use the crosslinkable polydimethylsiloxaneresins resins system of 36 weight portions for per 0.44 weight portion used noble metal complex catalyst and the used polydimethylsiloxane liquid of 4 weight portions.
Among the embodiment 14,, use the crosslinkable polydimethylsiloxaneresins resins system of 38 weight portions for per 0.4 weight portion used noble metal complex catalyst and the used polydimethylsiloxane liquid of 2 weight portions.
Among the embodiment 16,, use the crosslinkable polydimethylsiloxaneresins resins system of 39.5 weight portions for per 0.4 weight portion used noble metal complex catalyst and the used polydimethylsiloxane liquid of 0.6 weight portion.
Among the embodiment 18,, use the crosslinkable polydimethylsiloxaneresins resins system of 38.9 weight portions for per 0.44 weight portion used noble metal complex catalyst and the used polydimethylsiloxane liquid of 1.52 weight portions.
For embodiment 8 and 11, use two parts components system to prepare polyorganosiloxane adhesive composite.The A part component of adhesive composition is the polydimethylsiloxanemixture mixture that contains polydimethylsiloxane and methyl ethylene polydimethylsiloxane, it is translucent liquid, its proportion is about 1.04～about 1.17, can be obtained by Wacker Silicones Corporation, it is designated Elastosil LR3003/20A US.The B part component of adhesive composition is the polydimethylsiloxanemixture mixture that contains polydimethylsiloxane and methyl ethylene polydimethylsiloxane, it is translucent liquid, its proportion is about 1.04～about 1.18, can be obtained by Wacker SiliconesCorporation, it is designated Elastosil LR3003/20B US.
Among the embodiment 11,, use the polydimethylsiloxanemixture mixture of the A part of 5 weight portions for the B polydimethylsiloxanemixture mixture partly that per 5 weight portions use.
Among the embodiment 8,, use the polydimethylsiloxanemixture mixture of the A part of 3 weight portions for the B polydimethylsiloxanemixture mixture partly that per 1 weight portion uses.
Among the embodiment 13 and 15, use two parts component adhesives system to prepare polyorganosiloxane adhesive composite.The A of adhesive composition partly is a clarifying liquid.The B part of adhesive composition also is a clarifying liquid.This two parts component adhesives system can be obtained by Dow CorningCorporation, and its trade mark is a Sylgard Q3-6575 siloxanes electrolyte glue.
Among the embodiment 13,, use the A part component of 5.5 weight portions for the B part component that per 5 weight portions use.
Among the embodiment 15,, use the A part component of 6 weight portions for the B part component that per 4 weight portions use.
For each sample, in little plastic containers with the described raw material hand mix of described amount together.Preparation is about 7.5 inches, wide about 3.5 inches molded item.This molded item is made up of the polypropylene reinforcing membrane, its thickness is about 0.0015 inch, this film is by Edison Plastics, Washington, Georgia obtains, and it is between the sheet of two tetrafluoroethylene fluorocarbon polymers coatings, the thickness of each sheet is about 1/16 inch, by E.I.DoPontde Nemours Co., Wilmington, Delaware obtains.The sheet of the tetrafluoroethylene fluorocarbon polymers at top coating has two parallel mold cavity, and the width of each is about 0.25 inch, is about 5 inches, and the two is at a distance of about 2 inches from its thickness direction.On each edge of assembly parts, place three 1 inch bonding folder, be integral to keep assembly parts.
Then the polyorganosiloxane adhesive sample is poured in two mold cavity, to the top of the sheet of the tetrafluoroethylene fluorocarbon polymers at top coating, thickness is about 1/16 inch.Then the molding assembly parts were placed in about 123 ℃ circulated air oven about 30 minutes.Then assembly parts are taken out from baking oven and make it be cooled to room temperature (about 23 ℃).Remove the sheet of the tetrafluoroethylene fluorocarbon polymers coating of bonding folder and top and bottom from the polypropylene screen of binding agent coating.Peel off test with the polypropylene screen sample of these binding agent coatings then.The results are shown in Table 1 for it.
The sample that has also prepared polyorganosiloxane adhesive composite carries out the evaluation of rheological property.From being about 5 inches, following 4 inches * 4 inches preparation one molded item of sheet material cutting of wide about 5 inches, thick about 1/16 inch tetrafluoroethylene fluorocarbon polymers coating.This molded item is supported by the sheet material that the thick measure-alike tetrafluoroethylene fluorocarbon polymers of another length and width applies.Be clamped together with the sheet of bonding folder two tetrafluoroethylene fluorocarbon polymers coatings.The polyorganosiloxane adhesive sample is poured in the mold cavity, and to the top of the sheet of the tetrafluoroethylene fluorocarbon polymers at top coating, thickness is about 1/16 inch.Then the molding assembly parts were placed in about 123 ℃ circulated air oven about 30 minutes.Then assembly parts are taken out from baking oven and make it be cooled to room temperature (about 23 ℃).Remove the sheet of the tetrafluoroethylene fluorocarbon polymers coating at bonding folder and top from the sheet of bottom tetrafluoroethylene fluorocarbon polymers coating.Then these adhesive samples are peeled off down from the sheet of the tetrafluoroethylene fluorocarbon polymers coating of bottom, be used for rheometer test then.The results are shown in Table 1 for it.
Those skilled in the art will appreciate that under the prerequisite that does not deviate from the scope of the invention, the present invention can have many improvement and mutation.Therefore above-mentioned detailed Description Of The Invention and embodiment only is illustrative, is not to be meant to be limited in by any way the scope of pointing out in the claims of the present invention.
Table 1 sample sequence number storage shear modulus (dynes per centimeter
2) Tan δ hardness (Shore 00) maximum peeling strength (gram force)
*1 - 12 0
*2 2.81×10
4 0.35 0 3
*3 2.60×10
4 0.44 0 6
4 2.11×10
4 0.60 0 124
5 5.80×10
3 0.82 0 360
*7 2.00×10
5 0.47 32 ＞1200
*8 - - 65 0
10 1.43×10
4 0.77 0 212
*11 1.71×10
5 0.48 16 35
*12 9.36×10
4 0.21 15 140
*13 4.46×10
3 0.15 0 85
*14 1.38×10
5 0.24 20 365
15 2.20×10
3 0.45 0 118
*16 8.08×10
4 0.49 25 898
*17 2.36×10
4 0.48 0 10
*18 1.11×10
5 0.43 25 840
* not embodiments of the invention.
Claims (11)
1. disposable absorbent article, it comprises:
A ⅰ) liquid permeable topsheet is connected in the egative film on the top flat, the absorbing structure between this top flat and egative film, and at least one is fit to be adjacent to the first type surface of user health;
ⅱ) adhere to a kind of polyorganosiloxane adhesive composite on this first type surface, wherein said polyorganosiloxane adhesive composite has following performance:
(a) the storage shear modulus value measured down of about 20 ℃ and about 10 radian per seconds is less than about 1 * 10
5Dynes/cm;
(b) hardness number is less than about 5 durometer units (Shore 00);
(c) the tan δZhi measured down of about 20 ℃ and about 10 radian per seconds of frequency is about 0.4～about 2.0;
(d) the detachment rate scope is that the maximum peeling strength value of measuring under 0～about 5000 mm/min is about 35～about 900 gram forces/13 millimeters width.
2. the disposable absorbent article of claim 1, wherein the maximum peeling strength value is about 120～about 750 gram forces/13 millimeters width.
3. the disposable absorbent article of claim 2, wherein the maximum peeling strength value is about 210～about 360 gram forces/13 millimeters width.
4. the disposable absorbent article of claim 1, wherein hardness number is less than about 1 durometer unit (Shore 00).
5. the disposable absorbent article of claim 4, wherein hardness number is about 0 durometer unit (Shore 00).
6. the disposable absorbent article of claim 1, wherein the tan δZhi is about 0.7～about 2.0.
7. the disposable absorbent article of claim 6, wherein the tan δZhi is about 0.7～about 1.5.
8. the disposable absorbent article of claim 1, wherein the storage shear modulus value is about 1 * 10
5～about 1 * 10
3Dynes/cm.
9. the disposable absorbent article of claim 1, wherein the storage shear modulus value is less than about 7 * 10
4Dynes/cm.
10. the disposable absorbent article of claim 9, wherein the storage shear modulus value is less than about 2 * 10
4Dynes/cm.
11. the disposable absorbent article of claim 1, wherein polyorganosiloxane adhesive composite is to form with the mixture that contains the hydrogen containing siloxane copolymer of active hydrogen group by solidifying the functional polysiloxanes of low-grade alkenyl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96180512 CN1234743A (en) | 1996-11-25 | 1996-11-25 | Adhesive composition comprising polysiloxane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96180512 CN1234743A (en) | 1996-11-25 | 1996-11-25 | Adhesive composition comprising polysiloxane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1234743A true CN1234743A (en) | 1999-11-10 |
Family
ID=5127944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96180512 Pending CN1234743A (en) | 1996-11-25 | 1996-11-25 | Adhesive composition comprising polysiloxane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1234743A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1626049B (en) * | 2003-12-10 | 2010-12-08 | 日精有限公司 | Absorbent paster |
| CN1929875B (en) * | 2004-03-09 | 2011-07-06 | 宝洁公司 | Disposable absorbent articles with improved fastening performance to hydrophobic materials, particularly microfibre materials |
| CN101010065B (en) * | 2004-09-07 | 2012-02-29 | 陶氏康宁公司 | Silicone adhesive formulation containing an antiperspirant |
| CN101269236B (en) * | 2002-07-26 | 2012-09-26 | 金伯利-克拉克环球有限公司 | Fluid storage material including particles secured with a crosslinkable binder composition |
| CN102892440A (en) * | 2010-04-14 | 2013-01-23 | 莫恩里克保健股份公司 | Antimicrobial gels |
| CN107530471A (en) * | 2015-04-30 | 2018-01-02 | 科洛普拉斯特公司 | Adhesive composition |
| CN114305882A (en) * | 2022-01-14 | 2022-04-12 | 广东川田卫生用品有限公司 | Sanitary trousers easy for wearing and taking off in menstrual period |
| CN114404647A (en) * | 2021-12-30 | 2022-04-29 | 振德医疗用品股份有限公司 | High-viscosity slow-release antibacterial water-resistant silicon-containing ostomy care composition and preparation method thereof |
-
1996
- 1996-11-25 CN CN 96180512 patent/CN1234743A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101269236B (en) * | 2002-07-26 | 2012-09-26 | 金伯利-克拉克环球有限公司 | Fluid storage material including particles secured with a crosslinkable binder composition |
| CN1626049B (en) * | 2003-12-10 | 2010-12-08 | 日精有限公司 | Absorbent paster |
| CN1929875B (en) * | 2004-03-09 | 2011-07-06 | 宝洁公司 | Disposable absorbent articles with improved fastening performance to hydrophobic materials, particularly microfibre materials |
| CN101010065B (en) * | 2004-09-07 | 2012-02-29 | 陶氏康宁公司 | Silicone adhesive formulation containing an antiperspirant |
| CN102892440A (en) * | 2010-04-14 | 2013-01-23 | 莫恩里克保健股份公司 | Antimicrobial gels |
| CN102892440B (en) * | 2010-04-14 | 2014-10-29 | 莫恩里克保健股份公司 | Antimicrobial gels |
| CN107530471A (en) * | 2015-04-30 | 2018-01-02 | 科洛普拉斯特公司 | Adhesive composition |
| CN107530471B (en) * | 2015-04-30 | 2020-10-16 | 科洛普拉斯特公司 | Adhesive composition |
| CN114404647A (en) * | 2021-12-30 | 2022-04-29 | 振德医疗用品股份有限公司 | High-viscosity slow-release antibacterial water-resistant silicon-containing ostomy care composition and preparation method thereof |
| CN114305882A (en) * | 2022-01-14 | 2022-04-12 | 广东川田卫生用品有限公司 | Sanitary trousers easy for wearing and taking off in menstrual period |
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