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Heat-resistant anti-static adhesive film

An antistatic, adhesive film technology, applied in conductive adhesives, film/sheet adhesives, adhesives, etc., can solve problems such as improving heat resistance that are not mentioned

Inactive Publication Date: 2012-12-19
NANYA PLASTICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of the previous patents mentioned improving or improving heat resistance, and this patent also proposes an improvement method especially for heat aging

Method used

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  • Heat-resistant anti-static adhesive film
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  • Heat-resistant anti-static adhesive film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0067] The following examples and comparative examples are given to illustrate the effects of the present invention, but the scope of rights of the present invention is not limited to the scope of the examples.

[0068] 1. [Test method]

[0069] 1. Measurement of available working time (Pot-life)

[0070] The prepared acrylic adhesive solution was placed in a constant temperature water bath at 25°C, and the viscosity change within 24 hours was measured with a Brook Field viscometer. And calculate the viscosity change rate % with the following formula.

[0071] Viscosity change rate% = (viscosity of adhesive solution after 24 hours - initial viscosity of adhesive solution) / initial viscosity of adhesive solution × 100%

[0072] 2. Measurement of steel plate adhesion

[0073] Cut the prepared pressure-sensitive adhesive test piece into a size with a width of 25mm and a length of 180mm, and stick it on a SUS 304 steel plate that has been ground back and forth 30 times with #2...

manufacture example 1

[0087] [Production Example 1] Preparation of Acrylic Polymer (A)

[0088] In a reaction tank equipped with a stirrer, a thermometer, and a condenser, add 225 parts by weight of 2-ethylhexyl acrylate, 20 parts by weight of 4-hydroxybutyl acrylate, 0.3 parts by weight of acrylic acid, 25 parts by weight methoxypolyethylene glycol (350) acrylate, 0.1 parts by weight of 2,2'-azobisisobutyronitrile as a polymerization initiator and 270 parts by weight of ethyl acetate, while introducing nitrogen and stirring slowly, and The above solution was heated to 75° C., and polymerized at 75° C. for 8 hours to prepare a solution (30% by weight) of an acrylic polymer (A). The weight average molecular weight of the acrylic polymer (A) was 400,000.

manufacture example 2

[0089] [Production Example 2] Preparation of Acrylic Polymer (B)

[0090] In a reaction tank equipped with a stirrer, a thermometer, and a condenser, add 225 parts by weight of 2-ethylhexyl acrylate, 20 parts by weight of 4-hydroxybutyl acrylate, 0.3 parts by weight of acrylic acid, 25 parts by weight methoxypolyethylene glycol (550) acrylate, 0.1 parts by weight of 2,2'-azobisisobutyronitrile as a polymerization initiator and 270 parts by weight of ethyl acetate, while introducing nitrogen and stirring slowly, and The above solution was heated to 75° C., and polymerized at 75° C. for 8 hours to prepare a solution (30% by weight) of an acrylic polymer (B). The weight average molecular weight of the acrylic polymer (B) was 300,000.

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Abstract

The invention provides a heat-resistant anti-static adhesive film. The pressure-sensitive adhesive layer has a long working life (Pot-life) of up to 24 hours and anti-static capability. A pressure-sensitive patch or surface protective film containing the abovementioned composition in the form of sheets or strips is capable of standing high temperature of 150 for up to 3 hours without leaving glue residue.

Description

technical field [0001] The present invention relates to an adhesive film composition with a usable pot-life of up to 24 hours, good heat aging resistance and antistatic function. The composition is made into a sheet or a strip to obtain a pressure-sensitive adhesive patch or a surface protection film. Background technique [0002] In general, surface protection films are widely used on the surfaces of plastic and metal products. It is attached to the object to be protected by coating the adhesive on the inside of the antifouling and antistatic film or protective film, in order to prevent the object to be protected from being damaged or polluted during processing and transportation. On the other hand, most adhesives for surface protection films use acrylic adhesives in consideration of optical properties such as weather resistance and transparency. Most of the acrylic adhesives are copolymerized with (meth)acrylate and other monomers with different functional groups such as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J133/14C09J143/04C09J7/02C09J9/02B32B7/12
CPCC08L2312/08C09J7/0217C09J143/04C09J7/385Y10T428/2839
Inventor 冯殿润张纪铭曹俊哲颜世勋
Owner NANYA PLASTICS CORP
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