KR101898819B1 - Foam and manufacturing method of foam - Google Patents

Abstract

The present invention relates to foam and a manufacturing method thereof, wherein the foam includes bio-polyol, activated carbon, coffee meal, and an isocyanate-based compound. The foam is produced by making a mixture containing the bio-polyol, activated carbon, and coffee meal with the isocyanate-based compound react, and foam the result; and has a plurality of pores. The foam of the present invention includes longitudinally oriented pores having an elliptic shape, and can exhibit excellent sound blocking and sound absorption properties.

Description

[0001] FOAM AND MANUFACTURING METHOD OF FOAM [0002]

The present invention relates to foams, and more particularly to polyurethane foams and methods of making the same.

Polyurethane is a general term for a polymer compound bonded by a urethane bond. Polyurethane is used in various fields such as electric insulator, structural material, bubble insulation, bubble cushion, elastic fiber, etc. It is also used as a substitute material of rubber because of its excellent elasticity. Polyurethane is obtained by addition reaction using polyisocyanate and polyol as main materials. Since various kinds of raw materials are various and abundant, polyurethane materials having various various molecular structures and physical properties according to their combination methods Synthesis is being carried out.

Polyurethane that is synthesized from renewable resources such as vegetable natural oil without using petroleum-based raw materials among polyurethanes is called bio-polyurethane. Due to the recent increase in crude oil price and strengthening of environmental regulations, polyurethane raw materials continue to be limited in petroleum resources. Researches are being actively carried out to replace natural vegetable oils as much as possible.

However, biopolyols have a disadvantage that their reactivity is lower than that of petroleum-based polyols, and there is a problem that the mechanical properties may be lowered as the biopolyol content increases. Therefore, There is a need for further studies on a method for producing a polyurethane foam which can exhibit reactivity and excellent properties.

An object of the present invention is to provide a polyurethane-based foam exhibiting excellent properties.

Another object of the present invention is to provide a process for producing a polyurethane-based foam exhibiting excellent properties.

The foam for one purpose of the present invention comprises a biopolyol, an activated carbon, a coffee bean and an isocyanate-based compound, and a mixture containing a biopolyol, an activated carbon and a coffee foil reacts with an isocyanate- And includes a plurality of voids.

In one embodiment, as the content of coffee beans in the mixture increases relative to the activated carbon, the height of the voids in the longitudinal direction of the foam may increase.

At this time, the cavity may have an elliptical shape in which the major axis of the cavity is oriented in the longitudinal direction of the foam.

At this time, the height of the gap may be 1 mm to 10 mm, and the width of the gap may be 1 mm to 5 mm.

In one embodiment, the biopolyol may comprise at least one of caster oil and soybean oil polyol.

In one embodiment, the mixture comprises from 20 to 40 parts by weight of the biopolyol, from 5 to 45 parts by weight of active carbon and from 5 to 45 parts by weight of the coffee beans, based on 100 parts by weight of the mixture, 20 to 40 parts by weight of the isocyanate compound may react with 100 parts by weight of the mixture to foam and cure.

In one embodiment, the mixture further comprises at least one of a polyether-based polyol and a polyester-based polyol, wherein the mixture is foamed by being reacted with the isocyanate-based compound to be cured, At least one of a polyol and a polyester-based polyol, an activated carbon, a coffee bean, and an isocyanate-based compound.

At this time, the mixture may contain 15 to 35 parts by weight of at least one of a polyether polyol and a polyester polyol relative to 100 parts by weight of the mixture.

At this time, the mixture further comprises a catalyst, and the foam, which is foamed and cured by reacting with the isocyanate-based compound, is at least one of a biopolyol, a polyether polyol and a polyester polyol, Foams, catalysts and isocyanate-based compounds.

The catalyst may be selected from the group consisting of dibutyltin dilaurate (DBTL), stannous octoate, dimethyl ethanolamine (DMEA), tetramethyl butane diamine (TMBDA) At least one of dimethyl cyclohexyl amine (DMCHA), triethyl amine (TEA), and triethylene diamine (TEDA).

At this time, the mixture may contain less than 0.5 part by weight of the catalyst relative to 100 parts by weight of the mixture.

In one embodiment, the coffee bean may be a roasted coffee bean.

In one embodiment, the foam may be a foam that can be used as a material of at least one of a sound absorbing material, a sound insulating material, and a cushioning material.

A foam for another purpose of the present invention comprises adding an isocyanate compound to a mixture comprising a biopolyol, an activated carbon and a coffee bean, foaming the mixture to which the isocyanate compound has been added, and drying the foamed mixture do.

In one embodiment, the mixture may further comprise at least one of a polyether-based polyol and a polyester-based polyol.

In one embodiment, the mixture may further comprise a catalyst.

In one embodiment, the coffee bean may be a roasted coffee bean.

At this time, before the foaming step, the coffee beans may be roasted in a roasting pan at a heating temperature of 300 ° C to 400 ° C for 40 to 50 minutes to prepare a roasted coffee bean.

According to the foam of the present invention and the method for producing the same, it is possible to easily form a polyurethane foam by reacting with a mixture containing a biopolyol, an activated carbon and a coffee foil and an isocyanate-based compound, A plurality of voids having a size in the millimeter (mm) can be formed in the foam. In addition, the foam of the present invention may include a coffee foil such that the voids may have an oval shape with the longitudinal axis oriented in the longitudinal direction and the foam of the present invention includes longitudinally oriented oval shaped voids, In addition, in the foam of the present invention, the activated carbon and the coffee bean can contribute to improvement of the mechanical properties of the foam, and from this, excellent durability can be exhibited. In addition, since the present invention forms a foam by using a coffee bean as a waste resource, waste resources are environmentally friendly in terms of recycling, and costs such as raw material costs and additional processing costs such as material processing can be reduced, have.

BRIEF DESCRIPTION OF THE DRAWINGS FIGURES 1A and 1B illustrate a foam and a comparative foam according to one embodiment of the present invention.
2A to 2D are views for explaining a foam according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term "comprises" or "having ", etc. is intended to specify that there is a feature, step, operation, element, part or combination thereof described in the specification, , &Quot; an ", " an ", " an "

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

The foam of the present invention is a foam comprising a biopolyol, an activated carbon, a coffee bean, and an isocyanate compound, and foamed and cured by reacting an isocyanate compound with a mixture containing a biopolyol, an activated carbon and a coffee bean.

Polyols are polyhydric alcohols, i.e., aliphatic compounds having two or more hydroxyl groups (-OH). Among them, bio-polyol is also referred to as natural oil polyol (NOP), and refers to a vegetable polyol derived from vegetable oils such as soybean, coconut fruit, castor bean, sunflower seed, and the like. For example, in the present invention, the bio-polyol may include at least one bio-polyol selected from the group consisting of caterpillar oil and soybean oil polyol. Biopolyols are generally synthesized by modifying carbon double bonds or hydroxyl groups (alcohol groups) in fatty acids of vegetable oils. However, castor oil is a ricinoleic acid with about 90% of its constituent unsaturated fatty acids, which has a double bond at C = C and a hydroxyl group (-OH) at C-12 so that it reacts with isocyanate (-NCO) . Thus, for example, in the present invention, the bio polyol may preferably contain castor oil.

Activated carbon is a substance in which most of the constituent material is made of carbonaceous material, which can be synonymous with activated carbon. Activated carbon in the present invention may be included in the foam of the present invention, thereby contributing to the size and shape of the pores of the foam of the present invention together with the coffee beans. In addition, by being included in the foam of the present invention, it can exhibit a deodorizing effect and an aesthetic effect and contribute to improvement of mechanical properties such as hardness of the foam of the present invention.

The coffee grounds may be represented as coffee grounds, coffee pucks, coffee grounds, etc. The roasted coffee beans are roasted at high temperatures to carbonize them (roasting) into coffee beans. The coffee beans are mechanically pulverized from coffee powder to high- And the remaining residues. That is, the coffee bean may be, for example, a by-product of coffee extracted from an espresso machine, a coffee machine for drip coffee. Coffee beans generally have the highest polysaccharide content, and are composed of lipids, organic amino acids, proteins, minerals, fatty acids, and caffeine. The coffee residue, which is the remnant residue after roasting the coffee bean roots and extracting coffee with hot water again, is a part of the cellulose which is the polysaccharide constituting the coffee bean, carbonized part or all of the cellulose to form carbon, semigrain, carbon quantun dots, CQD), and unnecessary components such as organic matter are removed together with water during coffee extraction. Therefore, the coffee bean can be used as an excellent carbonized material even without a complicated carbonization process or an additional processing step. In particular, the coffee bean can be produced by removing unnecessary components such as fatty acids and organic amino acids, It is possible to prevent miscibility and deterioration of cohesive strength. On the other hand, in the present invention, the coffee beans may be roasted again to remove moisture and more carbonized roasted coffee beans. The roasted coffee beans may further increase the content of carbon, carbon quantum dots, partially graphened semi-graphene, and the like by further carbonizing the non-carbonized cellulose in the coffee beans. At this time, it may be preferable to roast the coffee beans at a heating temperature of 300 ° C to 400 ° C for 40 minutes to 50 minutes. In the present invention, the coffee bean can contribute to the improvement of the foaming rate of the foam. A more detailed description thereof will be described later.

The isocyanate compound is a compound containing an isocyanate group (-NCO) that reacts with the hydroxyl group of the polyol to form a urethane bond (-NHCOO-). Examples of the isocyanate compound include methylene diphenyl diisocyanate (Methylene diphenyl diisocyanate, Based compounds such as 4,4'-diphenylmethane diisocyanate, isophorone diisocyanate (IPDI), hexamethylene diisocyanate (HMDI) and the like. At this time, the isocyanate group content in the isocyanate compound may be 10 to 30% by weight based on the total weight of the isocyanate compound.

According to the method for producing the foam of the present invention, the foam of the present invention is produced by adding an isocyanate compound to a mixture containing a biopolyol, an activated carbon and a coffee bean to foam the mixture to which the isocyanate compound has been added, .

Specifically, when the isocyanate compound is added to the mixture, the hydroxyl group of the biopolyol in the mixture reacts with the cyanate group of the cyanate compound to form a urethane bond, whereby carbon dioxide is generated to form a pore. That is, the foam of the present invention is a polyurethane-based foam comprising a plurality of voids foamed and cured by a bio-polyol and an isocyanate-based compound. In this case, according to the present invention, the mixture contains a coffee bean, so that the reactivity of the bio-polyol and the isocyanate-based compound can be improved, and a large number of voids having a large size in units of millimeters (mm) It can be formed evenly. At this time, the pores may have a circular shape or an elliptical shape depending on the content of coffee beans in the mixture. For example, the higher the amount of coffee bean in the mixture, the greater the height of the voids along the longitudinal direction of the foam during the reaction of the bio-polyol and the isocyanate-based compound in the mixture. That is, the longitudinal axes of the foams of the present invention can be formed in the longitudinally oriented voids, and the voids can exhibit an elongated elliptical shape in the longitudinal direction of the foam. The long axis means the longest axis of the ellipse or ellipsoid (for example, the height direction), and the long axis in the present invention may mean the longest axis of the gap in the longitudinal section of the foam, It is not always necessary to be parallel to the longitudinal direction. In one example, the height of the gap may be 1 mm to 10 mm, and the width of the gap may be 1 mm to 5 mm.

That is, according to the present invention, by using a coffee foil, it is possible to improve the reactivity between the bio-polyol and the isocyanate-based compound so that a large number of voids having a large pore length and width in mm The foam can form a uniformly distributed foam, and in particular, depending on the content of the coffee bean, the void can have an oval shape whose longitudinal axis is oriented in the longitudinal direction of the foam. In addition, the present invention can exhibit enhanced strength compared to foams that do not include coffee beans, by including a coffee foil.

The mixture may comprise from 20 to 40 parts by weight of the biopolyol, from 5 to 45 parts by weight of active carbon and from 5 to 45 parts by weight of the coffee beans, based on 100 parts by weight of the mixture, And 20 to 40 parts by weight of the isocyanate-based compound may be reacted to foam to form a cured foam. At this time, the ratio of the activated carbon to the coffee bean may be 1: 0.2 to 1: 5, and preferably 1: 1 to 1: 2 for oval shaped pores.

For example, the mixture may further comprise at least one of a polyether polyol and a polyester polyol, and the mixture may be prepared by reacting the isocyanate compound with the foamed and cured May further include at least one of a polyether-based polyol and a polyester-based polyol. The polyether-based polyol means a polyol in which an ether group (-O-) is repeatedly bonded to the structure, and the polyester-based polyol means a polyol in which an ester group (-COO-) is repeatedly bonded to the structure. The polyether polyol or polyester polyol may be included in the mixture so that the foam of the present invention forms a hard polyurethane having a harder hardness. At this time, the mixture may contain 15 to 35 parts by weight of at least one of a polyether polyol and a polyester polyol relative to 100 parts by weight of the mixture. In one example, the polyether-based polyol, the polyester-based polyol, or a mixture thereof may have a molecular weight of 100 to 1,000 g / mol. The foam of the present invention may further exhibit improved mechanical properties by further including at least one of a polyether-based polyol and a polyester-based polyol.

Further, the mixture may further include a catalyst promoting the reaction between the mixture and the isocyanate-based compound, and the foam of the present invention in which the mixture is foamed and cured by reacting with the isocyanate-based compound may include a catalyst have. For example, the catalyst may be a catalyst promoting the resinization reaction between the polyol and the isocyanate-based compound in the mixture, for example, the catalyst may include dibutyltin dilaurate (DBTL), stannous octo Dimethyl ethanolamine (DMEA), tetramethyl butane diamine (TMBDA), dimethyl cyclohexyl amine (DMCHA), triethyl amine (TEA), and the like. , And triethylene diamine (TEDA). At this time, the mixture may include less than 0.5 part by weight of the catalyst relative to 100 parts by weight of the mixture, and may include 0.1 part by weight, for example.

Drying of the foamed mixture can be carried out by heat-drying the foamed mixture at a temperature of 60 ° C to 120 ° C, preferably by heating at 80 ° C. At this time, the drying can be carried out for 5 to 10 hours. In the drying process, pores may be formed as the liquid material of the mixture is removed from the mixture, along with the formation of voids resulting from the generation of carbon dioxide by the continuous reaction of the mixture and the isocyanate-based compound .

Meanwhile, the foam of the present invention can be carried out in various types of molds suitable for the purpose, shape, and the like of the reaction of the mixture and the isocyanate compound. That is, the foaming and curing of the mixture can be carried out in a suitable mold to form foams of various desired shapes and sizes. In one example, the foam may be in the form of a panel. Alternatively, the foam may be in block form.

According to the present invention, as described above, by adding an isocyanate compound to a mixture containing a biopolyol, an activated carbon and a coffee bean, the hydroxyl group of the polyol and the cyanate group of the cyanate compound react to form a urethane bond Whereby a foam comprising a plurality of voids is formed, wherein the mixture comprises a coffee foil, the voids having an elongated elliptical shape with a long axis in the longitudinal direction of the foam of the present invention, . That is, the foam of the present invention has a uniform size and distribution, and can include a large number of large pores in mm longitudinally oriented in the foam. Therefore, it is possible to exhibit a soundproof and sound absorbing effect superior to that of a circular pore having a small size, and the impact can be relieved with excellent efficiency when an impact is applied to the foam. In addition, the foams of the present invention can exhibit excellent hardness by including coffee beans, and as a result, the foams of the present invention can exhibit improved durability. In addition, the foams of the present invention can be prepared in various forms suitable for various uses and purposes.

Therefore, owing to these characteristics, the foam of the present invention can be used as a material for soundproofing or absorbing noise which blocks or absorbs noise in various fields, or can be used as a shock absorber for absorbing shocks. For example, it can be used as various types of building materials such as an interior material, an exterior material, a wall material, a floor material, and an aggregate.

Hereinafter, a (polyurethane) foam of the present invention and a method for producing the same will be described in more detail.

In order to prepare the foam according to one embodiment of the present invention, castor oil was first used as the biopolyol. 60 mL of a polyol solution containing castor oil, polyester polyol and triethylenediamine (TEDA) as a catalyst was prepared, and the polyol solution contained 70 parts by weight of castor oil, polyester polyol and catalyst per 100 parts by weight of the polyol solution , 29.8 parts by weight and 0.2 parts by weight. Subsequently, 18 g of active carbon and 36 g of coffee beans were added to the polyol solution in the polyol solution to prepare a mixture. Subsequently, isophorone diisocyanate (IPDI) was metered into the mixture in an amount of about 36 parts by weight relative to 100 parts by weight of the mixture, followed by foaming with stirring for 30 minutes. Then, the foamed mixture was heated and dried at a temperature of 80 DEG C for 7 hours to prepare a (polyurethane) foam (hereinafter referred to as Foam 1) according to Example 1 of the present invention.

Comparative Foam 1 according to Comparative Example 1 was prepared by performing substantially the same process as that of Foam 1 according to Example 1 of the present invention except that no coffee bean was added to the foam.

BRIEF DESCRIPTION OF THE DRAWINGS FIGURES 1A and 1B illustrate a foam and a comparative foam according to one embodiment of the present invention.

Fig. 1A is a photograph showing a longitudinal section of a foam 1 according to a first embodiment of the present invention, and Fig. 1B is a photograph showing a longitudinal section of a comparative foam 1 according to a first comparative example.

Referring to FIGS. 1A and 1B, it can be seen that the foam 1 according to the first embodiment of the present invention formed using a coffee foil has a substantially uniform distribution of a plurality of voids having a uniform size throughout the foam. It can also be seen that the pores of the foam 1 of the present invention are elliptical in shape and oriented in the longitudinal direction of the foam 1 and the pores are in the range of 1 mm to 10 mm in height, It can be confirmed that it has a large size.

On the other hand, Comparative Foam 1 according to Comparative Example 1, which does not contain coffee beans, has a relatively small size and distribution of pores and a relatively small size of pores as compared with Foam 1 of the present invention, It can be confirmed that the shape of the circle is close to the circle.

That is, it can be seen that the foam 1 and the comparative foam 1 of the present invention, which differ in the presence or absence of a coffee bean, show differences in the shape, size and distribution of pores. From this, It can be seen that, compared to a foam that does not include a coffee bean, a plurality of voids having an elliptical shape and oriented in one direction can form a foam having a uniform size distribution throughout the foam.

In addition, the hardness of Foam 1 of the present invention and the hardness of Comparative Foam 1 were compared, and it was confirmed that the hardness of Foam 1 of the present invention was improved as compared with Comparative Foam 1.

Therefore, as described with reference to FIGS. 1A and 1B, by including a coffee foil according to the present invention, it is possible to provide a foam having an elliptical shape elongated in the longitudinal direction of the foam and having a large number of pores uniformly distributed , And it can be confirmed that the foam of the present invention formed can exhibit improved hardness.

Further, in order to confirm the change of voids of the foam of the present invention according to the content of coffee beans, castor oil, polyester polyol and catalyst were added in amounts of 70 parts by weight, 29.8 parts by weight and 0.2 parts by weight, The foam 1 of the present invention was produced according to the above Example 1 except that the polyol solution was added so that the ratio of activated carbon and coffee bean was 1: 0.2, 1: 0.5, 1: 1 and 1: 2, respectively The foams according to Example 2 of the present invention (hereinafter referred to as Foams 2-1, 2-2, 2-3, and 2-4) were produced in substantially the same manner. The results are shown in Figs. 2A to 2D.

2A to 2D are views for explaining a foam according to another embodiment of the present invention.

2a shows a longitudinal cross-sectional photograph of a foam 2-1 containing activated carbon and coffee beans at a ratio of 1: 0.2, and Fig. 2b shows a cross-sectional view of a foam 2-2 containing activated carbon and coffee beans at a ratio of 1: 0.5 Picture. 2C is a longitudinal cross-sectional photograph of the foam 2-3 containing activated carbon and coffee beans at a ratio of 1: 1, FIG. 2D is a cross-sectional view of the foam 2-4 containing active carbon and coffee beans in a ratio of 1: Picture.

Referring to FIGS. 2A to 2D, it can be seen that as the content of coffee beans increases relative to the activated carbon in the foam, the height of the void gradually increases and the growth height of the foam increases. In addition, it can be confirmed that the size of the pores of the foam having a high coffee bean content is larger than that of the foam having a small coffee bean content compared to the activated carbon in the foam, and the shape of the pores gradually becomes elliptical in the circular shape.

Therefore, the foam of the present invention may have various pore shapes ranging from circular to elliptical depending on the content of coffee beans compared to activated carbon. Particularly, as the content of coffee bean increases, the pores increase in height and voids having an oval shape . At this time, it may be preferable that the content of coffee beans relative to activated carbon is 1: 1 to 1: 2 in order to form voids having an elliptical shape.

In addition, a non-coffee bean coffee roast was roasted in a roasting pan at a temperature of 300 ° C for 40 minutes to prepare a foam using a prepared roasting coffee bean. A foam (hereinafter, referred to as Foam 3) according to Example 3 of the present invention was prepared by performing substantially the same process as that of Foam 1 according to Example 1 except for using a roasting non-coffee bean foil , Which was compared with Foam 1.

As a result, it was confirmed that the longitudinally oriented pores in the foam 3 according to Example 3 of the present invention were uniformly distributed, and it was confirmed that the uniformity of the size and distribution of the pores was relatively improved as compared with the foam 1 I could. In addition, it was confirmed that the hardness of the foamed material was slightly improved as compared with that of the foamed material 1 using the roasted coffee foil.

That is, according to the present invention, the foam 1 using the coffee foil also exhibits excellent size and distribution uniformity and hardness of the pores, but it can be confirmed that the roasted coffee foil can exhibit improved size and distribution uniformity and hardness of the pores I could.

Therefore, in general, according to the present invention, by using the activated carbon and the coffee bean together with the bio-polyol, it is possible to overcome the problems of low reactivity and mechanical property deterioration of the conventional bio-polyol from the bio-polyol, It can be confirmed that a foam having a distribution and an excellent hardness can be formed. Further, it can be confirmed that the foam of the present invention has a circular shape and an elliptical shape according to the content of coffee bean, and in particular, the void having an elliptical shape is oriented in one direction and has a larger size .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. It can be understood that it is possible.

Claims (18)

Bio-polyols, activated carbon, coffee beans and isocyanate-based compounds,
A mixture containing a bio-polyol, an activated carbon and a coffee foil and an isocyanate-based compound are reacted to foam and cure,
Comprising a plurality of voids,
As the content of the coffee beans in the mixture increases with respect to the activated carbon, the height of the voids in the longitudinal direction of the foam increases,
Wherein the cavity has an elliptical shape in which the major axis of the cavity is oriented in the longitudinal direction of the foam,
Characterized in that the height of the gap is 1 mm to 10 mm and the width of the gap is 1 mm to 5 mm.
Foam.
delete delete delete The method according to claim 1,
Wherein the bio-polyol comprises at least one of caster oil and soybean oil polyol.
Foam.
The method according to claim 1,
Wherein said mixture comprises 20 to 40 parts by weight of said biopolyol, 5 to 45 parts by weight of active carbon and 5 to 45 parts by weight of said coffee beans per 100 parts by weight of said mixture,
Wherein the foam is foamed by reacting 20 to 40 parts by weight of the isocyanate compound with respect to 100 parts by weight of the mixture and the mixture.
Foam.
The method according to claim 1,
Wherein the mixture further comprises at least one of a polyether-based polyol and a polyester-based polyol,
The foamed product in which the mixture is foamed and reacted with the isocyanate compound to be cured includes at least one of a bio polyol, a polyether polyol and a polyester polyol, an activated carbon, a coffee bean, and an isocyanate compound doing,
Foam.
8. The method of claim 7,
Wherein the mixture comprises 15 to 35 parts by weight of at least one of a polyether polyol and a polyester polyol relative to 100 parts by weight of the mixture.
Foam.
8. The method of claim 7,
Wherein the mixture further comprises a catalyst,
The foamed product obtained by the reaction of the mixture with the isocyanate compound and foamed and cured includes at least one of a bio polyol, a polyether polyol and a polyester polyol, an activated carbon, a coffee bean, a catalyst and an isocyanate compound Features,
Foam.
10. The method of claim 9,
The catalyst may be selected from the group consisting of dibutyltin dilaurate (DBTL), stannous octoate, dimethyl ethanolamine (DMEA), tetramethyl butane diamine (TMBDA) Characterized in that it comprises at least one of dimethyl cyclohexyl amine (DMCHA), triethyl amine (TEA) and triethylene diamine (TEDA)
Foam.
10. The method of claim 9,
Wherein the mixture comprises less than 0.5 parts by weight of the catalyst relative to 100 parts by weight of the mixture.
Foam.
The method according to claim 1,
Characterized in that the coffee beans are roasted coffee beans,
Foam.
The method according to claim 1,
Characterized in that the foam is a foam usable as a material of at least one of a sound absorbing material, a soundproofing material and a cushioning material.
Foam.
A process for producing the foam of claim 1,
Adding an isocyanate compound to a mixture comprising a biopolyol, an activated carbon and a coffee bean, and foaming the mixture to which the isocyanate compound is added; And
And drying the foamed mixture.
≪ / RTI >
15. The method of claim 14,
Characterized in that the mixture further comprises at least one of a polyether polyol and a polyester polyol.
≪ / RTI >
16. The method of claim 15,
Characterized in that the mixture further comprises a catalyst.
≪ / RTI >
15. The method of claim 14,
Characterized in that the coffee beans are roasted coffee beans,
≪ / RTI >
18. The method of claim 17,
Before the foaming step,
Roasting said coffee beans to a roasting pan at a heating temperature of 300 DEG C to 400 DEG C for 40 to 50 minutes to prepare a roasted coffee bean.
≪ / RTI >

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