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Adhesive composition and surface protection film

A composition and adhesive technology, applied in the direction of adhesives, adhesive types, ester copolymer adhesives, etc., can solve the problem of temporary stop of cross-linking reaction, reduce the amount of addition, improve prevention, excellent antistatic performance effect

Active Publication Date: 2021-06-11
FUJIMORI KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, in the method described in Patent Document 2, the weight ratio of metal acetylacetone to acetylacetone is set to 2:1, but when this compounding ratio is used in the production process of the acrylic adhesive, it is impossible to make the transfer chain reaction temporarily stopped

Method used

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  • Adhesive composition and surface protection film
  • Adhesive composition and surface protection film
  • Adhesive composition and surface protection film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0120] Nitrogen gas was introduced into a reaction apparatus equipped with a stirrer, a thermometer, a reflux condenser, and a nitrogen introduction pipe, thereby replacing the air in the reaction apparatus with nitrogen. Then, 100 parts by weight of 2-ethylhexyl acrylate and 3.5 parts by weight of 8-hydroxyoctyl acrylate were added to the reaction device. Then, 0.1 parts by weight of azobisisobutyronitrile was added dropwise as a polymerization initiator over 2 hours, and reacted at 65° C. for 6 hours to obtain acrylic acid copolymerization compound with a weight average molecular weight of 500,000 and used in Example 1. Material solution 1. A part of the acrylic copolymer was used as a sample for acid value measurement described later.

Embodiment 2～6 and comparative example 1～3

[0122] Except that the composition of each monomer was adjusted as described in (A), (B), (I) and (F-2) in Table 1, it was the same as the above-mentioned acrylic acid copolymer solution 1 used in Example 1. According to the operation, the acrylic acid copolymer solutions used in Examples 2-6 and Comparative Examples 1-3 were obtained.

[0123] Table 1

[0124]

[0125]

[0126] [Example 1]

[0127] To the acrylic copolymer solution 1 of Example 1 produced as described above, 1.5 parts by weight of 1-octylpyridinium hexafluorophosphate and 4.0 parts by weight of acetylacetone were added and stirred, and then 1.5 parts by weight of Coronate HX (coronet HX, the isocyanurate of hexamethylene diisocyanate compound), 0.05 parts by weight of tris(2,4-pentanedione)iron(III) and then stirred and mixed to obtain the binder composition of Example 1 . This adhesive composition was coated on a release film composed of a polyethylene terephthalate (PET) film coated with a silicone ...

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Abstract

The present invention provides an adhesive composition having antistatic properties, excellent balance of adhesive force at low peeling speed and high peeling speed, long pot life, durability and reworkability. The binder composition includes: (A) at least one of (meth)acrylate monomers whose alkyl carbon atoms are C4-C18 and (B) hydroxyl-containing monomers as a copolymerizable monomer group. 100 parts by weight of copolymers of copolymerizable monomers; (C) 0.1 to 10 parts by weight of isocyanate compounds with more than two functions; (D) 0.001 to 0.5 parts by weight of crosslinking catalysts for metal chelates; (E) keto-enol 0.1-200 parts by weight of tautomeric compounds; and 0.05-5 parts by weight of ionic compounds whose melting point is 25-50°C as (F) antistatic agent, and the ratio of parts by weight of (E) / (D) is 70~700.

Description

[0001] The present invention is a divisional application with the application number 201510053170.0, the application date is February 02, 2015, and the invention name is "adhesive composition and surface protection film". This application was filed in Japan on April 24, 2014. Patent application JP2014-090580 is the basis for claiming priority. technical field [0002] The invention relates to an adhesive composition and a surface protection film. In more detail, the present invention relates to providing a surface of a polarizing plate having antistatic properties, excellent balance of adhesive force at low peeling speed and high peeling speed, long pot life, durability and reworkability Adhesive composition for protective film and surface protective film. Background technique [0003] For adhesives for optical applications, from the viewpoint of excellent transparency, it is preferable to use an alkyl (meth)acrylate copolymerized with an acrylic monomer having a hydroxyl g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/08C09J7/40C09J7/25
CPCC09J11/06C09J133/06C09J133/066C09J133/08C09J133/10C09J7/385C09J2301/122C09J2301/124
Inventor 长仓毅岛口龙介长谷川良新见洋人吉田弘幸菱沼昌世
Owner FUJIMORI KOGYO CO LTD
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