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Heat-sensitive adhesive

A kind of adhesive and warm technology, applied in the direction of adhesive type, ester copolymer adhesive, adhesive, etc., can solve the problems that the wax fixing force is difficult to reduce, and the processed object is peeled off, etc., and achieve the effect of simple peeling

Active Publication Date: 2017-12-01
NITTA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the fixing power of wax is difficult to decrease, so if the workpiece is temporarily fixed with wax, it is difficult to peel off the workpiece, and wax remains on the peeled workpiece, so a cleaning process is required

Method used

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  • Heat-sensitive adhesive
  • Heat-sensitive adhesive

Examples

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Comparison scheme
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Embodiment 1～4

[0072] [Examples 1 to 4 and Comparative Example]

[0073]

Embodiment 1

[0075] Example 1: Synthesis Example 1 (C22A: 50% by weight)

Embodiment 2

[0076] Example 2: Synthesis Example 2 (C22A: 55% by weight)

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Abstract

The invention relates to a heat-sensitive adhesive which can provisionally fixing an object to be processed in a stable state and can simpley strip the object to be processed. The heat-sensitive adhesive includes side chain crystalline polymer which is crystallized at a temperature below a melting point and display fluidity at a temperature above the melting point; the storage modulus G' is above 1X 106 Pa at a temperature from 23 to 45 DEG C, and the storage modulus G' is above 1X 104-5X 104 Pa at a temperature above 60 DEG C. The side chain crystalline polymer at least is copolymer of methyl propiolate having linear chain alkyl groups with the carbon number greater than 22 and methyl propiolate having linear chain alkyl groups with the carbon number of 2-8; the methyl propiolate having linear chain alkyl groups with the carbon number greater than 22 is included in a weight proportion above 50% in monomer ingredients.

Description

technical field [0001] The present invention relates to a temperature-sensitive adhesive that can be used as a temporary fixing material. Background technique [0002] Temporary fixing materials are used in the manufacturing process of multilayer ceramic capacitors, etc., but the conventional temporary fixing materials tend to soften due to heat generated during scribing, and the workpiece shifts and sinks during dicing, resulting in poor cutting accuracy. . In order to solve such a problem, the temporary fixing member is required to be able to temporarily fix the workpiece in a stable state. [0003] In addition, the temporary fixing material is also required to be able to easily peel off the workpiece. If a specific example is given, wax is known as a temporary fixing material (for example, refer patent document 1). [0004] However, the fixing power of the wax is difficult to decrease, so if the workpiece is temporarily fixed with wax, it is difficult to peel off the w...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J133/06C08F220/18C08F220/28
CPCC08F220/18C09J133/066C09J2433/00C09J2467/006C08F220/1818C09J2301/122C09J2301/312C09J2301/414C08F220/1804C08F220/281C09J7/00C09J133/08C09J133/10C09J7/385C09J2301/302
Inventor 西尾智博山本正芳河原伸一郎
Owner NITTA CORP