KR101722639B1 - Adhesive composition having improved heat and cold resistance and the manufacturing method of adhesive using the same - Google Patents

Abstract

The pressure-sensitive adhesive composition according to the present invention is a pressure-sensitive adhesive composition comprising styrene-butadiene rubber (SBR), acrylonitrile-butadiene rubber (NBR), isobutylene isoprene rubber (IIR), isoprene 50 to 70 parts by weight of a rubber selected from the group consisting of rubber (IR), and chloroprene rubber (CR) or mixtures thereof; A tackifier 5 to 15 parts by weight; Silicon dioxide (SiO _2), calcium carbonate (CaCO _3), magnesium carbonate (MgCO _3), and clay and 10 to 25 parts by weight of an inorganic filler selected from the group consisting of and mixtures thereof; 5 to 10 parts by weight of a softening plasticizer; And 0.1 to 2.0 parts by weight of an anti-aging agent, which is an excellent substitute for the use of expensive raw materials, and exhibits an effect of remarkably improving the heat resistance and cold resistance as compared with the pressure sensitive adhesive prepared using raw materials.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-sensitive adhesive composition having excellent heat resistance and cold resistance, and a method of manufacturing a pressure-

The present invention relates to a pressure-sensitive adhesive composition having excellent heat resistance and cold resistance, and a method for producing a pressure-sensitive adhesive using the same.

Adhesives used in conventional packaging tapes and the like are mainly produced using imported raw materials as main raw materials.

Such raw materials are almost entirely dependent on imports and are very expensive. The raw rubber is manufactured as a rubber product through the Soviet process, which is a process of mechanically cutting the molecular chain of rubber to lower the viscoelasticity, and the kneading work which is an even mixing operation using heat and a machine. Such a rubber product is usually subjected to a vulcanization process, and a vulcanized rubber product is used as a final product.

On the other hand, the pressure sensitive adhesive produced by using such a raw rubber has a problem that when the pressure sensitive adhesive is exposed to a high temperature or a low temperature environment, the physical properties of the pressure sensitive adhesive deteriorate, and the adhesive strength and the adhesive holding strength are greatly lowered.

Accordingly, there is a desperate need to develop a pressure-sensitive adhesive exhibiting excellent adhesive strength and adhesive holding power without deteriorating physical properties of the pressure-sensitive adhesive even when exposed to an environment of high temperature or low temperature, which is excellent in heat resistance.

Therefore, in order to solve the above-mentioned problems, the present invention has been made to solve the above-mentioned problems by using styrene-butadiene rubber (SBR), acrylonitrile-butadiene rubber (NBR), isobutylene isoprene rubber (IIR), isoprene it has been found that a pressure-sensitive adhesive composition having excellent heat resistance and cold resistance can be prepared by mixing isoprene rubber (IR) or chloroprene rubber (CR) with a tackifier, an inorganic filler, a softening plasticizer and an antioxidant , The present invention has been completed on the basis thereof.

Accordingly, one aspect of the present invention is to provide a pressure-sensitive adhesive composition having excellent heat resistance and cold resistance.

Another aspect of the present invention is to provide a method for producing a pressure-sensitive adhesive excellent in heat resistance and cold resistance by using the pressure-sensitive adhesive composition.

The pressure-sensitive adhesive composition according to one embodiment of the present invention may include at least one of styrene-butadiene rubber (SBR), acrylonitrile-butadiene rubber (NBR), isobutylene isoprene rubber (IIR) 50 to 70 parts by weight, preferably 62.5 parts by weight of a rubber selected from the group consisting of isoprene rubber (IR), chloroprene rubber (CR) or mixtures thereof; 5 to 15 parts by weight, preferably 9.2 parts by weight of a tackifier; 10 to 25 parts by weight, preferably 18.5 parts by weight of an inorganic filler selected from the group consisting of silicon dioxide (SiO ₂ ), calcium carbonate (CaCO ₃ ), magnesium carbonate (MgCO ₃ ) and clay or mixtures thereof; 5 to 10 parts by weight, preferably 6.2 parts by weight of a softening plasticizer; And 0.1 to 2.0 parts by weight, preferably 0.6 parts by weight, of an antioxidant.

In the pressure-sensitive adhesive composition according to another embodiment of the present invention, the tackifier may be selected from the group consisting of rosin, a petroleum resin, and a phenol resin or a mixture thereof.

 In the pressure-sensitive adhesive composition according to another embodiment of the present invention, the softening plasticizer may be selected from the group consisting of dioctyl adipate (DOA), dibutyl phthalate (DBP) and polybutene, Lt; / RTI >

In the pressure-sensitive adhesive composition according to another embodiment of the present invention, the antioxidant may be at least one selected from the group consisting of p, p'-diaminodiphenylmethane, dendritic aldol-alpha-naphthylamine, powdered aldol-alpha-naphthylamine, acetaldehyde aniline , N-phenyl- alpha -naphthylamine, N-phenyl- beta -naphthylamine, N-cyclohexyl-N'-phenyl-p-phenylenediamine, sym-diphenylethylenediamine, 2,2,4-trimethyl-6-phenylquinoline, 1,2-dihydro-2,2,4-trimethylquinoline, acetone-diphenylamine, 6-ethoxy- Di-tert-butyl-4-methylphenol, di-tert-butyl-p-cresol, hydroquinone monobenzyl ether, 1,1-bis (4-hydroxyphenyl) Hexane, dialkyl phenol sulfide, 2,2-methylene bis (4-methyl-6-tert-butyl phenone), styrenated phenol, alkylphenol condensate, and dibutyldithiocarbamic acid nickel or mixtures thereof Lt; / RTI >

The method for producing a pressure sensitive adhesive according to an embodiment of the present invention may include a method of producing a pressure sensitive adhesive using styrene-butadiene rubber (SBR), acrylonitrile-butadiene rubber (NBR), isobutylene isoprene rubber ), Isoprene rubber (IR), and chloroprene rubber (CR), or mixtures thereof, to produce a rubber sheet;

Cutting the rubber sheet to a size of 5 to 10 mm in thickness and 50 to 50 mm in width and 200 mm × 200 mm in size, preferably 100 mm × 100 mm in size; Blowing the mixture obtained by mixing the cut rubber sheet with an organic solvent for 3 to 4 hours; And the inflated mixture tackifier, zinc oxide (ZnO), carbon black, and white carbon (white carbon) selected adjuvant from the group consisting of silicon dioxide (SiO _2), calcium carbonate (CaCO _3), magnesium carbonate (MgCO ₃ ), and clay or a mixture thereof, a softening plasticizer, and an antioxidant, and stirring for 10 to 20 hours.

In the method of manufacturing a pressure sensitive adhesive according to another embodiment of the present invention, the rubber is used in an amount of 50 to 70 parts by weight, preferably 62.5 parts by weight, and the tackifier is used in an amount of 5 to 15 parts by weight, preferably 9.2 parts by weight, The reinforcing agent is mixed at 1 to 5 parts by weight, preferably 3 parts by weight, the inorganic filler at 10 to 25 parts by weight, preferably 18.5 parts by weight, and the softening plasticizer at 5 to 10 parts by weight, preferably 6.2 parts by weight , And the aging inhibitor may be mixed in an amount of 0.1 to 2.0 parts by weight, preferably 0.6 parts by weight.

A method of manufacturing a pressure sensitive adhesive according to another embodiment of the present invention is a method of manufacturing a pressure sensitive adhesive comprising styrene-butadiene rubber (SBR), acrylonitrile-butadiene rubber (NBR), isobutylene isoprene rubber IIR), isoprene rubber (IR), and chloroprene rubber (CR), or mixtures thereof; The Soviet rubber zinc oxide (ZnO), carbon black, and white carbon (white carbon) as a silicon dioxide These reinforcing agents, from the group consisting of (SiO _2), calcium carbonate (CaCO _3), magnesium carbonate (MgCO _3), and Clay or a mixture thereof, a softening plasticizer and an antioxidant to prepare a rubber sheet; Cutting the rubber sheet to a size of 5 to 10 mm in thickness and 50 to 50 mm in width and 200 mm × 200 mm in size, preferably 100 mm × 100 mm in size; Blowing the mixture obtained by mixing the cut rubber sheet with an organic solvent for 3 to 4 hours; And mixing the inflated mixture with a tackifier and stirring for 10 to 20 hours.

In the method for producing a pressure-sensitive adhesive according to another embodiment of the present invention, the rubber is used in an amount of 50 to 70 parts by weight, preferably 62.5 parts by weight, the tackifier is used in an amount of 5 to 15 parts by weight, preferably 9.2 parts by weight, The reinforcing agent is mixed in an amount of 1 to 5 parts by weight, preferably 3 parts by weight, the inorganic filler in an amount of 10 to 25 parts by weight, preferably 18.5 parts by weight, and the softening plasticizer in an amount of 5 to 10 parts by weight, preferably 6.2 parts by weight And the aging inhibitor may be mixed in an amount of 0.1 to 2.0 parts by weight, preferably 0.6 part by weight.

The pressure-sensitive adhesive composition according to the present invention is a pressure-sensitive adhesive composition comprising styrene-butadiene rubber (SBR), acrylonitrile-butadiene rubber (NBR), isobutylene isoprene rubber (IIR), isoprene The use of rubbers selected from the group consisting of rubber (IR), chloroprene rubber (CR), and mixtures thereof can replace the use of costly raw materials used in pressure sensitive adhesives, And exhibits a remarkably advantageous effect of remarkably improving heat resistance and cold resistance.

Before describing the invention in more detail, it is to be understood that the words or words used in the present specification and claims are not to be construed in a conventional or dictionary sense, It should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the constitution of the embodiments described in the present specification is merely a preferred example of the present invention, and does not represent all the technical ideas of the present invention, so that various equivalents and variations And the like.

Hereinafter, preferred embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

The pressure-sensitive adhesive composition having excellent heat resistance and cold resistance according to the present invention can be used for various tapes including packaging tapes, and can be used as various interior sheet for interior use and various stationary pressure-sensitive adhesive. However, the scope of the present invention is not limited to the above-mentioned examples.

The pressure-sensitive adhesive composition according to the present invention is a pressure-sensitive adhesive composition comprising styrene-butadiene rubber (SBR), acrylonitrile-butadiene rubber (NBR), isobutylene isoprene rubber (IIR), isoprene 50 to 70 parts by weight of a synthetic rubber selected from the group consisting of rubber (IR) and chloroprene rubber (CR) or mixtures thereof, 5 to 15 parts by weight of a tackifier, silicon dioxide (SiO ₂ ) 10 to 25 parts by weight of an inorganic filler selected from the group consisting of calcium carbonate (CaCO ₃ ), magnesium carbonate (MgCO ₃ ) and clay or a mixture thereof, 5 to 10 parts by weight of a softening plasticizer and 0.1 to 2.0 parts by weight of an antioxidant 62.5 parts by weight of the synthetic rubber, 9.2 parts by weight of the tackifier, 18.5 parts by weight of the inorganic filler, 6.2 parts by weight of softening plasticizer and 0.6 parts by weight of an antioxidant.

The synthetic rubber constitutes a main component of the pressure-sensitive adhesive composition according to the present invention and plays a role of imparting heat resistance and cold resistance to the pressure-sensitive adhesive. Examples of the synthetic rubber include styrene-butadiene rubber (SBR), acrylonitrile-butadiene rubber (NBR), isobutylene isoprene rubber (IIR), isoprene rubber IR) or chloroprene rubber (CR) may be used, and it is included in 50 to 70 parts by weight in the pressure-sensitive adhesive composition according to the present invention. When the content of the synthetic rubber is less than 50 parts by weight, there is a problem that heat resistance and cold resistance of the pressure-sensitive adhesive produced by using the synthetic rubber are lowered, and when it exceeds 70 parts by weight, it is uneconomical. The synthetic rubber is preferably included in an amount of 62.5 parts by weight.

The tackifier serves to impart an adhesive force to the synthetic rubber contained in the composition according to the present invention, and is included in an amount of 5 to 15 parts by weight. As the tackifier, for example, rosin, a petroleum resin, and a phenol resin or a mixture thereof may be used, and it is particularly preferable to use a phenol resin. When the content of the tackifier is less than 5 parts by weight, the adhesive strength of the pressure-sensitive adhesive using the synthetic rubber is lowered. When it exceeds 15 parts by weight, the viscosity of the pressure-sensitive adhesive composition becomes too high. The tackifier is preferably included in 9.2 parts by weight.

The inorganic filler serves to increase the pressure-sensitive adhesive composition according to the present invention and improve the processability. The inorganic filler is preferably used an inorganic filler material in a relatively low-cost, for example, silicon dioxide (SiO _2), calcium carbonate (CaCO _3), it is possible to use a clay, diatomaceous earth, and the like. As the inorganic filler, it is possible to use, for example, silicon dioxide (SiO ₂ ), calcium carbonate (CaCO ₃ ), magnesium carbonate (MgCO ₃ ) and clay or a mixture thereof, 10 to 25 parts by weight. If the content of the inorganic filler is less than 10 parts by weight, the effect of increasing the volume of the pressure-sensitive adhesive composition is lowered. If the content of the inorganic filler is more than 25 parts by weight, the pressure- The inorganic filler is preferably included in an amount of 18.5 parts by weight.

The softening plasticizer softens the synthetic rubber to enhance the elongation of the rubber. As the softening plasticizer, it is possible to use an oil such as N-2 process oil and the like, for example, a paraffin softening plasticizer, an aromatic softening plasticizer, a naphthalene softening plasticizer, dioctyl adipate (DOA) It is possible to use dibutyl phthalate (DBP), polybutene or the like. The softening plasticizer is included in the pressure-sensitive adhesive composition in an amount of 5 to 10 parts by weight. When the amount is less than 5 parts by weight, softening and elongation of the synthetic rubber are lowered. When the amount is more than 10 parts by weight, the tensile strength of the pressure- . The softening plasticizer is preferably included in an amount of 6.2 parts by weight.

The antioxidants serve to prevent or slow down the aging and oxidation of the synthetic rubber. That is, the antioxidant plays a role of suppressing natural oxidation or aging of the synthetic rubber by sunlight, heat or air, thereby extending the lifetime of the pressure-sensitive adhesive manufactured using the same, and enhancing the adhesive retention. The antioxidant may be, for example, p, p'-diaminodiphenylmethane, dendritic aldol-α-naphthylamine, powder aldol-α-naphthylamine, acetaldehyde aniline, Phenyl-p-phenylenediamine, sym-diphenylethylenediamine, 1,2-dihydro-2,2,4-trimethyl-6 Dihydro-2,2,4-trimethylquinoline, acetone-diphenylamine, 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline, 2,6 Di- tert -butyl-4-methylphenol, di-tert-butyl-p-cresol, hydroquinone monobenzyl ether, 1,1-bis (4-hydroxyphenyl) cyclohexane, It is possible to use 2-methylenebis (4-methyl-6-tert-butylphenone), styrenated phenol, alkylphenol condensate, or dibutyldithiocarbamate nickel or a mixture thereof. The antioxidant is included in the pressure-sensitive adhesive composition according to the present invention in an amount of 0.1 to 2.0 parts by weight. When the amount of the antioxidant is less than 0.1 part by weight, the effect of preventing the aging of the synthetic rubber is lowered and the lifetime of the pressure- When it exceeds the weight part, it is uneconomical and the addition of other components is limited and the physical properties such as the tackiness of the pressure-sensitive adhesive deteriorate. The antioxidant is preferably contained in an amount of 0.6 part by weight.

Hereinafter, a method for producing a recycled rubber pressure-sensitive adhesive using the pressure-sensitive adhesive composition according to the present invention will be described.

The method for producing a pressure-sensitive adhesive having excellent heat resistance and cold resistance according to the present invention includes a method of producing a pressure-sensitive adhesive having styrene-butadiene rubber (SBR), acrylonitrile-butadiene rubber (NBR), isobutylene isoprene rubber Preparing a rubber sheet by soving a rubber selected from the group consisting of an isoprene rubber (IIR), an isoprene rubber (IR), and a chloroprene rubber (CR) or a mixture thereof, And a width of 50 mm x 50 mm to 200 mm x 200 mm, preferably a size of 100 mm x 100 mm, a step of mixing the cut rubber sheet with an organic solvent for 3 to 4 hours Inflators for step and the mixture was inflated tackifier, zinc oxide (ZnO), carbon black, and white carbon (white carbon) a reinforcing agent, selected from the group consisting of silicon dioxide (SiO _2), calcium carbonate (C aCO ₃ ), magnesium carbonate (MgCO ₃ ), and clay or a mixture thereof, a softening plasticizer and an antioxidant, and stirring for 10 to 20 hours.

Another method for producing a pressure-sensitive adhesive having excellent heat resistance and cold resistance according to the present invention is a method of producing a pressure-sensitive adhesive having excellent heat resistance and cold resistance by using styrene-butadiene rubber (SBR), acrylonitrile-butadiene rubber (NBR), isobutylene isoprene rubber (IIR), isoprene rubber (IR), and chloroprene rubber (CR) or a mixture thereof, the step of sintering the soved rubber with zinc oxide (ZnO) , carbon black, and white carbon (white carbon) as a selected adjuvant, silicon dioxide from the group consisting of (SiO _2), calcium carbonate (CaCO _3), magnesium carbonate (MgCO _3), and clay or selected from the group consisting of a mixture thereof An inorganic filler, a softening plasticizer and an antioxidant to prepare a rubber sheet, the rubber sheet having a thickness of 5 to 10 mm and a width of 50 mm × 50 mm to 200 mm × 200 mm, Preferably 100 mm x 100 mm, infusing the mixture of the cut rubber sheet with an organic solvent for 3 to 4 hours, and mixing the inflated mixture with the tackifier and stirring for 10 to 20 hours ≪ / RTI >

The content of each component used in the above production method is as described above.

Hereinafter, advantages of the synthetic rubber pressure-sensitive adhesive composition according to the present invention will be described in more detail through specific examples and comparative examples.

Example 1 - Preparation of Synthetic Rubber Pressure-Sensitive Adhesive Composition

62.5 g of styrene-butadiene rubber (SBR), 9.2 g of phenol resin, 18.5 g of silicon dioxide (SiO ₂ ), 6.2 g of dioctyl adipate (DOA) and 0.6 g of dibutyldithiocarbamate To prepare a synthetic rubber pressure-sensitive adhesive composition.

Example 2 - Preparation of Synthetic Rubber Pressure-Sensitive Adhesive Composition

62.5 g of acrylonitrile-butadiene rubber (NBR), 9.2 g of a phenol resin, 18.5 g of silicon dioxide (SiO ₂ ), 6.2 g of dioctyl adipate (DOA) and 0.2 g of nickel dibutyldithiocarbamate Were mixed to prepare a synthetic rubber pressure-sensitive adhesive composition.

Example 3 - Preparation of Synthetic Rubber Pressure-Sensitive Adhesive Composition

62.5 g of isobutylene isoprene rubber (IIR), 9.2 g of phenol resin, 18.5 g of silicon dioxide (SiO ₂ ), 6.2 g of dioctyl adipate (DOA) and 0.6 g of dibutyldithiocarbamate g to prepare a synthetic rubber pressure-sensitive adhesive composition.

Example 4 - Preparation of Synthetic Rubber Pressure-Sensitive Adhesive Composition

62.5 g of isoprene rubber (IR), 9.2 g of phenol resin, 18.5 g of silicon dioxide (SiO ₂ ), 6.2 g of dioctyl adipate (DOA) and 0.6 g of dibutyldithiocarbamate A synthetic rubber adhesive composition was prepared.

Example 5 - Preparation of Synthetic Rubber Pressure-Sensitive Adhesive Composition

62.5 g of chloroprene rubber (CR), 9.2 g of phenol resin, 18.5 g of silicon dioxide (SiO ₂ ), 6.2 g of dioctyl adipate (DOA) and 0.6 g of dibutyldithiocarbamate A synthetic rubber adhesive composition was prepared.

COMPARATIVE EXAMPLE 1 - Preparation of raw pressure-sensitive adhesive composition

A synthetic rubber pressure-sensitive adhesive composition was prepared by mixing 62.5 g of raw rubber, 9.2 g of phenol resin, 18.5 g of silicon dioxide (SiO ₂ ), 6.2 g of dioctyl adipate (DOA) and 0.6 g of nickel dibutyldithiocarbamate .

[Adhesion test]

The pressure-sensitive adhesive compositions prepared according to the above Examples and Comparative Examples were applied to a polypropylene film to prepare a tape coated with a pressure-sensitive adhesive. Samples prepared by cutting the tape thus prepared into 100 mm x 100 mm width were prepared Three samples were prepared for each of the Examples and Comparative Examples). The initial adhesive strength after 1 minute and the adhesive strength after 100 hours exposure to UV were measured respectively. The results are shown in Table 1 below.

[Tensile strength test]

A pressure-sensitive adhesive composition prepared according to the above Examples and Comparative Examples was applied to a polypropylene film to prepare a tape coated with a pressure-sensitive adhesive. A sample was prepared by cutting the tape thus prepared to a width of 10 mm x 100 mm Three samples were prepared for each of the Examples and Comparative Examples). The tensile strength of the thus prepared tape sample was measured, and the results are shown in Table 1 below.

[Retention test]

The pressure-sensitive adhesive compositions prepared according to the above Examples and Comparative Examples were applied to a polypropylene film to prepare a tape coated with a pressure-sensitive adhesive. Samples prepared by cutting the tape thus prepared into 100 mm x 100 mm width were prepared Three samples were prepared for each of the Examples and Comparative Examples). One end of the tape sample thus prepared was attached to paper, and a weight of 500 g was attached to the other end of the tape sample, and the vertical retention force was measured at a length of 5 minutes of tape descent. The results are shown in Table 1 below.

[Heat resistance test]

The pressure-sensitive adhesive compositions prepared according to the above Examples and Comparative Examples were applied to a polypropylene film to prepare a tape coated with a pressure-sensitive adhesive. Samples prepared by cutting the tape thus prepared into 100 mm x 100 mm width were prepared Three samples were prepared for each of the Examples and Comparative Examples). The thus prepared tape sample was stored in a high-temperature chamber at 55 ° C for 10 hours, taken out and attached to paper, and the adhesion after 1 minute was measured. The results are shown in Table 1 below.

[Cold resistance test]

The pressure-sensitive adhesive compositions prepared according to the above Examples and Comparative Examples were applied to a polypropylene film to prepare a tape coated with a pressure-sensitive adhesive. Samples prepared by cutting the tape thus prepared into 100 mm x 100 mm width were prepared Three samples were prepared for each of the Examples and Comparative Examples). The thus prepared tape sample was stored in a low-temperature chamber at -10 ° C for 10 hours, taken out and adhered to paper, and the adhesive strength after 1 minute was measured. The results are shown in Table 1 below.

Sample Early

adhesiveness
(N / cm) Adhesion after UV exposure
(N / cm) The tensile strength
(N / cm) retention
(Mm) Heat resistance test
(N / cm) Cold resistance test
(N / cm)
Example 1 Sample 1 1.39 1.38 45 2.0 1.36 1.36 Example 1 Sample 2 1.38 1.38 45 2.1 1.36 1.36 Example 1 Sample 3 1.38 1.37 46 2.1 1.35 1.35 Example 2 Sample 1 1.39 1.38 45 2.2 1.35 1.36 Example 2 Sample 2 1.38 1.37 45 2.1 1.34 1.36 Example 2 Sample 3 1.38 1.37 46 2.1 1.34 1.34 Example 3 Sample 1 1.39 1.38 45 2.0 1.34 1.36 Example 3 Sample 2 1.39 1.38 47 2.1 1.33 1.36 Example 3 Sample 3 1.38 1.38 46 2.1 1.35 1.36 Example 4 Sample 1 1.38 1.37 45 2.2 1.34 1.34 Example 4 Sample 2 1.39 1.38 46 2.1 1.34 1.35 Example 4 Sample 3 1.39 1.39 45 2.1 1.33 1.36 Example 5 Sample 1 1.38 1.38 45 2.1 1.34 1.36 Example 5 Sample 2 1.38 1.37 46 2.0 1.35 1.35 Example 5 Sample 3 1.39 1.38 46 2.2 1.35 1.36 Comparative Example 1 Sample 1 1.27 1.27 40 2.7 0.91 0.89 Comparative Example 1 Sample 2 1.27 1.26 41 2.6 0.89 0.98 Comparative Example 1 Sample 3 1.28 1.27 41 2.7 0.88 0.91

In the case of the pressure-sensitive adhesive tapes prepared using the synthetic rubber pressure-sensitive adhesive composition according to the present invention, the pressure-sensitive adhesive tapes prepared by using only the raw rubber in all of the initial adhesive force, the adhesive force after UV exposure, the tensile strength, It can be confirmed that the more excellent effect is obtained. In particular, the adhesive strength of the pressure-sensitive adhesive tape prepared using the synthetic rubber pressure-sensitive adhesive composition according to the present invention was 1.34 to 1.36 (N / cm) as a result of the test results of the heat resistance and cold resistance test. It is clearly understood that this is a result of clearly supporting the fact that the composition has excellent heat resistance and cold resistance as compared with the pressure-sensitive adhesive composition using raw materials.

Claims (6)

delete delete Butadiene rubber, styrene-butadiene rubber (SBR), acrylonitrile-butadiene rubber (NBR), isobutylene isoprene rubber (IIR), isoprene rubber (IR), and chloroprene (chloroprene) rubber (CR), or a mixture thereof, to produce a rubber sheet;
Cutting the rubber sheet to a size of 5 to 10 mm in thickness and a size of 50 to 50 mm by 200 mm by 200 mm in width and length;
Blowing the mixture obtained by mixing the cut rubber sheet with an organic solvent for 3 to 4 hours; And
The inflated tackifier, zinc oxide and the mixture (ZnO), carbon black, and white carbon (white carbon) selected adjuvant from the group consisting of silicon dioxide (SiO _2), calcium carbonate (CaCO _3), magnesium carbonate (MgCO ₃ ), And clay, or a mixture thereof, a softening plasticizer and an antioxidant, and stirring the mixture for 10 to 20 hours.
The method of claim 3,
The rubber is mixed in an amount of 50 to 70 parts by weight, the tackifier in an amount of 5 to 15 parts by weight, the reinforcing agent in an amount of 1 to 5 parts by weight, the inorganic filler in 10 to 25 parts by weight and the softening plasticizer in 5 to 10 parts by weight And the antioxidant is mixed in an amount of 0.1 to 2.0 parts by weight, the heat resistance and the cold resistance being excellent.
Butadiene rubber, styrene-butadiene rubber (SBR), acrylonitrile-butadiene rubber (NBR), isobutylene isoprene rubber (IIR), isoprene rubber (IR), and chloroprene (chloroprene) rubber (CR), or mixtures thereof;
The Soviet rubber zinc oxide (ZnO), carbon black, and white carbon (white carbon) as a silicon dioxide These reinforcing agents, from the group consisting of (SiO _2), calcium carbonate (CaCO _3), magnesium carbonate (MgCO _3), and Clay or a mixture thereof, a softening plasticizer and an antioxidant to prepare a rubber sheet;
Cutting the rubber sheet to a size of 5 to 10 mm in thickness and a size of 50 to 50 mm by 200 mm by 200 mm in width and length;
Blowing the mixture obtained by mixing the cut rubber sheet with an organic solvent for 3 to 4 hours; And
And mixing the inflated mixture with a tackifier and stirring for 10 to 20 hours. ≪ RTI ID = 0.0 > 11. < / RTI >
The method of claim 5,
The rubber is mixed in an amount of 50 to 70 parts by weight, the reinforcing agent is 1 to 5 parts by weight, the tackifier is 5 to 15 parts by weight, the inorganic filler is 10 to 25 parts by weight and the softening plasticizer is mixed in 5 to 10 parts by weight And the antioxidant is mixed in an amount of 0.1 to 2.0 parts by weight, the heat resistance and the cold resistance being excellent.