Adhesive composition and surface protection film

A composition and adhesive technology, applied in the direction of adhesive types, ester copolymer adhesives, film/sheet adhesives, etc., can solve the difficulty of re-fitting, easy to reduce reworkability, and difficult to peel and other problems, to achieve the effect of improving the performance of preventing the occurrence of adhesive residues and reducing the amount of addition.

Active Publication Date: 2015-09-30
FUJIMORI KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] In general, if the adhesive layer is made flexible, adhesive residue tends to occur and reworkability tends to decrease
That is, it is difficult to peel off and reattach when it is easy to attach by mistake

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

[0100] Nitrogen was introduced into a reaction apparatus equipped with a stirrer, a thermometer, a reflux condenser, and a nitrogen introduction tube, and the air in the reaction apparatus was replaced with nitrogen. Then, add 100 parts by weight of 2-ethylhexyl acrylate, 0.9 parts by weight of 8-hydroxyoctyl acrylate, 0.5 parts by weight of acrylic acid, 3 parts by weight of polyethylene glycol monoacrylate and solvent (ethyl acetate ester) 60 parts. Then, 0.1 part by weight of azobisisobutyronitrile as a polymerization initiator was dropped over 2 hours, and reacted at 65° C. for 6 hours to obtain the acrylic copolymer solution used in Example 1 with a weight average molecular weight of 500,000. 1.

Embodiment 2～9 and comparative example 1～9

[0102] The composition of each monomer was set as described in (A) to (D) of Table 1, and Example 2 was obtained in the same manner as the acrylic copolymer solution 1 used in Example 1 above, except that ~9 and the acrylic copolymer solutions used in Comparative Examples 1-9.

[0103]

[0104] [Example 1]

[0105] As mentioned above, for the prepared acrylic copolymer solution 1 (wherein the acrylic copolymer is 100 parts by weight), 1.5 parts by weight of 1-octylpyridinium hexafluorophosphate, KF-351A (HLB=12 Polyether-modified siloxane compound) 0.1 parts by weight, acetylacetone 2.5 parts by weight and stirred, then add Coronet HX (isocyanurate body of hexamethylene diisocyanate compound) 1.5 parts by weight, dilauric acid di After adding 0.02 parts by weight of octyltin, it was stirred and mixed to obtain the adhesive composition of Example 1. After applying this adhesive composition on a release film made of a silicone resin-coated polyethylene terephthalate (PET) fi...

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Abstract

The invention provides an adhesive composition, and a surface protection film. The adhesive composition and the surface protection film have antistatic properties, excellent adhesive force balance in low-speed stripping and high-speed stripping, and excellent durability and reworkability. The adhesive composition provided by the invention comprises a copolymer which is composed of (A) C4-C10 (meth)acrylate monomers, (B) copolymerizable monomers containing hydroxyls, (C) copolymerizable monomers containing carboxyls, and (D) polyalkylene glycol mono(meth)acrylate monomers. The adhesive composition further comprises (E) an isocyanate compound with more than 3 degrees of functionality, (F) a crosslinked inhibitor, (H) an antistatic agent, and (I) a polyether-modified siloxane compound.

Description

[0001] This application is a divisional application of an application with a filing date of November 20, 2012, an application number of 201210472704.X, and an invention title of "adhesive composition and surface protection film". technical field [0002] This invention relates to the surface protection film used in the manufacturing process of a liquid crystal display. More specifically, the present invention relates to an adhesive combination for a surface protection film that is bonded to the surface of an optical member such as a polarizing plate or a retardation plate constituting a liquid crystal display, and protects the surface of an optical member such as a polarizing plate or a retardation film. objects, and the surface protection film using it. Background technique [0003] Conventionally, in the manufacturing process of optical components such as polarizing plates and retardation plates constituting a liquid crystal display, a surface protection film is temporaril...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J7/02
CPCC09J4/00C09J7/22C09J7/38C09J7/385C09J7/40C09J2203/318C09J2301/302C09J2301/312
Inventor 长仓毅岛口龙介
Owner FUJIMORI KOGYO CO LTD
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