CN85101194A - Heat-resistant pressure vessel through the biax orientation moulding - Google Patents
Heat-resistant pressure vessel through the biax orientation moulding Download PDFInfo
- Publication number
- CN85101194A CN85101194A CN85101194.2A CN85101194A CN85101194A CN 85101194 A CN85101194 A CN 85101194A CN 85101194 A CN85101194 A CN 85101194A CN 85101194 A CN85101194 A CN 85101194A
- Authority
- CN
- China
- Prior art keywords
- container
- glass fibre
- moulding
- heat
- biax orientation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
The invention provides one through the biax orientation container for moulding, it can be at an easy rate by extruding or injection stretch blow molding process cast molding.Even this container also has satisfied heat-resisting and voltage endurance at the content of glass fibre less than 10% o'clock of weight.
Description
The present invention relates to one through the biax orientation container for moulding, this container is made by the thermoplastic base resin that contains glass fibre.
By stretch-blow thermoplastic base resin (poly terephthalic acid second fat resin for example, polyvinylchlorides etc.) make it biax orientation and container for moulding is compared with the container that obtains with blow moulding and had better gas barrier properties and mechanical strength, this container is not only holding aspect the beverage but also all is being widely used at aspects such as packaged food, cosmetics, medicines.
In recent years, particularly increase year by year by poly terephthalic acid second fat resin biax orientation container for moulding demand, and its glass transition temperatures is equally low with Koroseal, even the mechanical strength of container is because moulding increases significantly through biax orientation, always but its resistance to effect of heat has certain limit.In this case, if container is used to hold temperature and then must strengthens its resistance to effect of heat with some method when the fill more than 70 ℃.When container is used for thing that splendid attire has certain pressure and for example is filled with the beverage of carbonate gas, even the temperature of the thing of filling is not high, because temperature improves the distortion that the interior pressure increase that causes can cause container bottom, make container not only lose self holding capacity as bottle, and since the impact of charges when flowing can set off an explosion.
A kind of method that solves these problems of above-mentioned biax orientation container molding is, the heating stretch-blow makes container formation under the glass transition temperatures being higher than, to stablize its resistance to effect of heat, even in this way, resistance to effect of heat near glass transition temperatures is made moderate progress, but under higher ambient-air temperature, the durability when being higher than the temperature and pressure of mentioning does not at first improve.
According to another kind of method, glass fibre is mixed in the poly terephthalic acid second fat resin, by the characteristic of glass fibre with heat-resisting, withstand voltage and gas barrier properties of improving container and the like.Yet the plasticity that contains the stretched thermoplastic resin blowing of glass fibre changes with the difference of content of glass fiber.The content of glass fibre is many more, and various characteristics is good more, but container is stretch blow-molded then difficult more.
Therefore, even the content of glass fibre is because the cause of casting need be limited in the plastic region, and its trapping characteristic still can be brought up to certain degree, but can not obtain satisfied heat and pressure resistance property.
In view of top described, inventor of the present invention is by to by the repeatedly research of thermoplastic base resin through the biax orientation container for moulding, found a kind of new biax orientation container that contains glass fibre, this by thermoplastic base resin particularly by poly terephthalic acid second fat resin, the biax orientation container of moulding such as Vinyl chloride resin has extremely excellent heat-resisting and voltage endurance.And the content of its glass fibre is in practicable stretch blow-molded scope.
An object of the present invention is to provide a biax orientation container, it can pass through employed extruding so far or injection stretch blow molding process moulding at an easy rate, and have a satisfied heat-resisting and voltage endurance, even also be like this less than 10% o'clock of weight at the content of glass fibre.
Another object of the present invention provides a kind of biax orientation container with extremely excellent heat-resisting and voltage endurance, it can be widely used as the packing container of the carbonated drink that is beverage, food and needs heating and filler and the container that is used as cosmetics, medicine, liquid etc., it in addition under higher ambient-air temperature, also be enough to stand in the danger of pressing with the bearing characteristics that keeps self and not having to explode.
What have above-mentioned purpose the invention provides one by the thermoplastic resin molded biax orientation container that contains glass fibre, its face area stretching amplification degree is above 3 times, the content of glass fibre is 0.3% to 10% of weight, and carries out thermal finalization in 70 ℃ to 180 ℃ range of temperatures.
Its fibre diameter of the glass fibre that can use in the present invention is 5 to 20 microns, and fibre length is 1 to 6 millimeter, and length-to-diameter is 200 to 300, and it also can be tiny glass particle, and this can depend on the circumstances.
The content of glass fibre is the 0.3% to 10%, 1.5% to 4% then better of weight in the resin, and its content changes with the shape and the purposes of casting container.Yet, if the content of glass fibre just may out of reach less than the strengthening effect of 0.3% o'clock glass fibre of weight, if the content overweight of glass fibre 10% realize that with common stretch blow molding process the moulding of container just becomes exceedingly difficult.
According to the present invention, a biax orientation container can be earlier at container mold with extruding or injecting method casting of axial tension, and the temperature of this mold is controlled near the glass transition temperatures, then blows into air and makes it fully to expand in cavity.
When the mold moulding, the glass fibre of predetermined quantity is added in the resin equably, make it in an extruding or injected with heated cylinder and mixed with resin, the parent batching that perhaps prepares a kind of high-load is with them and resin mixing mutually under a predetermined ratio.
Preferably finish continuously from the moulding that is formed into the biax orientation container of face area expansion more than 3 times (product that vertical and horizontal stretch) of mold, a moulding even an also available cold mould base system carry out, that is: with behind the mold cool to room temperature, be heated to glass transition temperatures once more and carry out stretch-blow.Yet, this forming method when stretch blow-molded its mold adjustment than pattern of fever base system difficulty.In pattern of fever base system, stretch blow-moldedly near being remained on glass transition temperatures, the mold temperature realizes.
With length is 3 millimeters, diameter is 10 microns a glass fibre, be added to (TEIJIN in the poly terephthalic acid second fat resin with the ratio that accounts for total weight 2.2%, Co., Ltd, TR-8550), they are in an injection cylinder and mixed with resin, and resin is injected into the container mold that forms a band bottom in the injection molding thereafter, and glass fibre has obtained uniform mixing in mold.
Mold weight is approximately 29 grams, its neck and a carrier ring integrally are shaped together, mold is in high as far as possible temperature bottom knockout, regulate its internal temperature then at once, then mold is heated to 70 ℃ to 180 ℃ temperature stretch-blow to 500 ml containers of face area stretching amplification degree above 3 times in blow molding die.In moulding, container discharges from blow molding die heat a period of time in blow molding die after, is transported through the biax orientation container of thermal finalization then.
In the container of the biax orientation of moulding.Resin between the glass fibre, the heating by after the moulding causes pyrocondensation, and the resistance to effect of heat below heating-up temperature is stablized.In addition, since resin by glass fiber-reinforced.Thereby increased bending strength.
Be the casting condition of an embodiment below:
Machine uses ASB-50(NISEEI ASB machinery Co., Ltd)
270 °-280 ℃ of the temperature of injection cylinder
10 °-12 ℃ of the temperature of injection molding
100 ℃ of the temperature of container mold
Blow gas pressure (air) 14 kilograms per centimeter
2
Gassing time 12 seconds
105 ℃ of blown-mold temperature
It should be noted that container can carry out thermal finalization and need not heat blowing mould by the air blowing medium, the temperature of the medium of blowing in this case is decided to be 200 ℃ to 250 ℃, and gassing time remained between 3 to 10 seconds.
Twin shaft according to the present invention is expressed as follows to the performance of oriented containers and comparative example:
Hot water shrinkage's percentum
90 ℃ hot water injects bottle, measures after 12 hours
Shrinkage percentage=(V
O-V)/(V
O) * 100%
In the formula
V
o: the volume of bottle before hot water injects
V: hot water injects the volume of back bottle
Bending strength
Adopt the stretching/compression testing machine TCM-500 crossbeam of SHINKO TSUSHIN KOGYO Co., Ltd manufacturing vertically load to be added on the empty receptacle, when container deformation, obtain maximum load with 500 millimeters/minute speed.
Compressive resistance (under high pressure)
Be filled with carbon dioxide (or the 7 gram CO of 3.6 times of bottle volumes
2) bottle put into one 76 ℃ controlled-temperature cabinet, check the size of bottle each several part and the variation of profile thereof after 20 minutes, 76 ℃ of following 3.6 times of volume gaseous tensions are approximately the 12-13 kilograms per centimeter
2, the stretch ratio of bottle each several part can be used following Equation for Calculating
Stretch ratio=(A-A
O)/(A
O) * 100
In the formula
A
o: container is put into the size before 76 ℃ of controlled-temperature cabinets
A: the size that container is measured after putting into behind 76 ℃ of controlled-temperature cabinets under low temperature through 12 hours
As mentioned above, according to the container of this biax orientation moulding of the present invention, it has The existing container of advantage does not have, and it has fabulous heat-resisting and voltage endurance, and it is the splendid attire thing at high temperature, can be used as the pressure vessel that fills CO 2 aerated beverage and similar thing yet and can stand higher atmospheric temperature.
Claims (3)
1, container with fabulous heat and pressure resistance property, this container is made by the thermoplastic base resin that contains glass fibre, face area stretch to be enlarged more than 3 times and moulding through biax orientation, it is characterized in that the content of glass fibre is 0.3% to 10% of weight in the said vesse, and in 70 ℃ to 180 ℃ range of temperatures, carry out thermal finalization.
2, desired according to claim 1 is the container that fabulous heat and pressure resistance property is arranged, and wherein used thermoplastic base resin includes poly terephthalic acid second fat.
3, according to claim 1 desired container with fabulous heat and pressure resistance property, the diameter range of wherein said glass fibre is 5 to 20 microns, and length range is 1 to 6 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85101194.2A CN1004067B (en) | 1985-04-01 | 1985-04-01 | Heat-resistant pressure-resistant container formed by biaxial orientation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85101194.2A CN1004067B (en) | 1985-04-01 | 1985-04-01 | Heat-resistant pressure-resistant container formed by biaxial orientation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85101194A true CN85101194A (en) | 1986-10-08 |
| CN1004067B CN1004067B (en) | 1989-05-03 |
Family
ID=4791676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85101194.2A Expired CN1004067B (en) | 1985-04-01 | 1985-04-01 | Heat-resistant pressure-resistant container formed by biaxial orientation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1004067B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857094B (en) * | 2005-04-28 | 2012-09-19 | 株式会社吉野工业所 | Bottles with gradation patterns and process for injection molding of preforms |
| CN103648747A (en) * | 2010-12-17 | 2014-03-19 | 格莱汉姆包装Lc公司 | Pet containers with enhanced thermal properties and process for making same |
| US9725802B2 (en) | 2014-11-11 | 2017-08-08 | Graham Packaging Company, L.P. | Method for making pet containers with enhanced silicon dioxide barrier coating |
-
1985
- 1985-04-01 CN CN85101194.2A patent/CN1004067B/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857094B (en) * | 2005-04-28 | 2012-09-19 | 株式会社吉野工业所 | Bottles with gradation patterns and process for injection molding of preforms |
| US10471642B2 (en) | 2009-09-22 | 2019-11-12 | Graham Packaging Pet Technologies Inc. | PET containers with enhanced thermal properties and process for making same |
| CN103648747A (en) * | 2010-12-17 | 2014-03-19 | 格莱汉姆包装Lc公司 | Pet containers with enhanced thermal properties and process for making same |
| CN103648747B (en) * | 2010-12-17 | 2015-11-25 | 格莱汉姆包装Lc公司 | There is pet container and the manufacturing process thereof of the thermal characteristics of reinforcement |
| US9725802B2 (en) | 2014-11-11 | 2017-08-08 | Graham Packaging Company, L.P. | Method for making pet containers with enhanced silicon dioxide barrier coating |
| US10421098B2 (en) | 2014-11-11 | 2019-09-24 | Graham Packaging Company, L.P. | PET containers with enhanced silicon dioxide barrier coating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1004067B (en) | 1989-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2297008C (en) | Large polyester containers and method for making same | |
| CN1064892C (en) | Method for making a molded plastic container | |
| KR20050073598A (en) | Pet copolymer composition with enhanced mechanical properties and stretch ratio, articles made therewith and methods | |
| RU2699640C2 (en) | Furan polymer pre-molded workpieces, containers and processing methods | |
| RU2675904C1 (en) | Preform for manufacture of plastic container, manufacture of preform and plastic container made from such preform and also its manufacture | |
| CN100369737C (en) | Molded object obtained through stretching and thermal fixing and process for producing the same | |
| CN101203367A (en) | Low IV PET based copolymer preform with enhanced mechanical properties and cycle time, container made therewith and methods | |
| KR20000048355A (en) | Plastic bottle and method of producing the same | |
| CN101203368A (en) | Injection moulding preform, stretching and blow moulding container and methods for reducing the period of making the same | |
| EP1960274A2 (en) | Container and preform for obtaining a container | |
| WO2006031557A2 (en) | Method of making a compression moulded preform, such a compression moulded preform and method of making a stretch blow moulded plastic container | |
| US4524045A (en) | Method of fabricating bottle-shaped container of saturated polyester | |
| CN85101194A (en) | Heat-resistant pressure vessel through the biax orientation moulding | |
| MX2011002300A (en) | Preform for making plastic container. | |
| US5336464A (en) | Extrusion blow molding of thermotropic liquid crystalline polymers | |
| US4581443A (en) | Production of improved pellets from melt-processable polymer which is capable of forming and anisotropic melt | |
| EP0201851A2 (en) | Polyarylenethioether stretched blow-molded vessel and production thereof | |
| US4567224A (en) | Biaxially oriented container excellent in heat resisting property and pressure resisting property | |
| CN1556742A (en) | Methods for making polyethylene terephthalate (PET) preforms and containers such as food bottles, containers and intermediate preforms obtained | |
| KR930009898B1 (en) | Bottle grade polyester resins resinforced with glass fibers and containers made of such resins | |
| JPS61188433A (en) | Polyamide resin foam improved in warpage | |
| GB2055672A (en) | Method of blow moulding bottle of saturated polyester | |
| JPS6264726A (en) | Heat-resistant bottle body made of synthetic resin and manufacture thereof | |
| JPH09290457A (en) | Preparation of polyester bottle and polyester bottle | |
| JPS6410329B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |