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Adhesive and adhesive tape

A technology of adhesives and adhesive tapes, which is applied in the direction of adhesive types, adhesives, polyurea/polyurethane adhesives, etc., can solve the problems of adding primers, etc., and achieve excellent anchoring effects

Inactive Publication Date: 2012-08-08
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the steps and equipment are necessary for this, adding a primer layer is not desirable

Method used

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  • Adhesive and adhesive tape
  • Adhesive and adhesive tape
  • Adhesive and adhesive tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0097] Hereinafter, the present invention is described more specifically by means of the following examples and comparative examples, however, the following comparative examples and examples do not limit the scope of the present invention. In the following description, unless otherwise specified, "parts" and "%" refer to "parts by weight" and "% by weight", respectively.

[0098] [Preparation of binder solution]

[0099] The ingredients were blended in the parts shown in Tables 1 and 2, and the mixture was dissolved in toluene to produce a binder solution having a solid content of 15%. Parts of the various ingredients shown in Tables 1 and 2 do not include solvents. Therefore, the parts of the various ingredients shown in Tables 1 and 2 refer to the parts of the ingredients themselves contained in the solution (solid content) if the ingredients are obtained in a solution. Tables 1 and 2 also show the value of A in the above formula (I).

[0100] The abbreviations of the com...

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Abstract

The present invention provides an adhesive comprising a polyolefin (a), a hydroxyl group-containing polyolefin (b) and a crosslinking agent (c) having a functional group capable of reacting with the hydroxyl group.

Description

technical field [0001] The present invention relates to a polyolefin-based adhesive comprising polyolefin, and an adhesive tape having an adhesive layer made of the adhesive. Background technique [0002] Polyolefin-based adhesives, especially rubber-based adhesives comprising rubber such as polyisobutylene, are used in a wide variety of applications. However, it is known that polyolefin-based adhesives and rubber-based adhesives have poor adhesion to general substrates (for example, polyester substrates, polyolefin substrates) (hereinafter sometimes referred to as "adhesion to substrates"). "Anchorability" is abbreviated as "anchorability"). Therefore, various techniques for improving the anchorability of an adhesive layer made of a polyolefin-based adhesive have been proposed so far. [0003] For example, Patent Document 1 discloses its technique for improving anchorability by interposing a primer layer between a rubber-based adhesive layer and a base material (support)....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J123/14C09J123/20
CPCC09J7/021C09J123/22C09J123/142C09J2423/00C09J7/381C08K5/205C08L23/22Y10T428/263Y10T428/2878C09J175/04C09J7/38C09J7/22C09J2301/312C09J7/30
Inventor 伊关亮平松刚安藤雅彦
Owner NITTO DENKO CORP