Adhesive composition and surface protection film

A composition and binder technology, applied in the direction of adhesives, binder types, ester copolymer binders, etc., can solve problems such as unsatisfactory performance requirements, to prevent binder residues, reduce additives, Improve the effect of prevention

Active Publication Date: 2015-08-19
FUJIMORI KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even if each performance requirement can be satisfied individually, all the performance requirements required for the adhesive layer as a surface protection film cannot be satisfied.

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

[0111] Nitrogen was introduced into a reaction device equipped with a stirrer, a thermometer, a reflux condenser, and a nitrogen introduction pipe, thereby replacing the air in the reaction device with nitrogen. Then, 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, 5 parts by weight were added to the reaction device. Parts by weight of N-vinylpyrrolidone and 60 parts by weight of solvent (ethyl acetate) are added at the same time. Then, 0.1 parts by weight of azobisisobutyronitrile as a polymerization initiator was dropped over 2 hours and reacted at 65°C for 6 hours to obtain acrylic acid used in Example 1 with a weight average molecular weight of 500,000 Copolymer solution 1. A part of the acrylic copolymer was taken and used as an acid value measurement sample described later.

Embodiment 2～9 and comparative example 1～4

[0113] Except that the composition of each monomer was adjusted separately as described in (A) to (E) and (I-2) in Table 1, the operation was performed in the same manner as in the acrylic copolymer solution 1 used in Example 1. The acrylic copolymer solutions used in Examples 2-9 and Comparative Examples 1-4 were obtained.

[0114] Table 1

[0115]

[0116]

[0117] [Example 1]

[0118] To the acrylic copolymer solution 1 of Example 1 prepared as described above, 1.5 parts by weight of 1-octylpyridinium hexafluorophosphate and 0.2 parts by weight of KF-351A (HLB=12 polyether modified siloxane were added) Compound), 2.5 parts by weight of acetylacetone and stirring, 1.0 parts by weight of Coronate HX (Coronate HX, isocyanurate of hexamethylene diisocyanate compound), 0.2 parts by weight of Coronate L (Coronate L, toluene diisocyanate) The adduct of the compound and trimethylolpropane), 0.02 parts by weight of dioctyltin dilaurate, and then stirred and mixed to obtain the binder com...

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Abstract

PROBLEM TO BE SOLVED: To provide an adhesive composition which has antistatic performance, is excellent in balance of adhesion at a low peel rate and a high peel rate, and excellent in durability and reworkability.SOLUTION: An adhesive composition comprises an acrylic polymer of a copolymer which comprises (A) a (meth)acrylic acid ester monomer in which the number of carbon atoms of an alkyl group is 4-10, (B) a copolymerizable monomer containing a hydroxyl group, (C) a copolymerizable monomer containing a carboxyl group, (D) a polyalkylene glycol mono(meth)acrylic acid ester monomer, and (E) a nitrogen-containing vinyl monomer free of a hydroxyl group or an alkoxy group-containing alkyl (meth)acrylate monomer, and further contains (F) an isocyanate compound having three or more functions, (G) a crosslinking retarder, (H) a crosslinking catalyst, (I) an antistatic agent, (J) a polyether modified siloxane compound. The acid value of the acrylic polymer is 0.01-8.0.

Description

Technical field [0001] The present invention relates to a surface protective film used in the manufacturing process of a liquid crystal display. More specifically, the present invention relates to an adhesive for a surface protective film for protecting the surface of optical components such as a polarizing plate and a retardation plate by being pasted on the surface of an optical component such as a polarizing plate and a retardation plate constituting a liquid crystal display Agent composition, and a surface protective film using the adhesive composition. Background technique [0002] Conventionally, in the manufacturing process of optical components such as polarizing plates and phase difference plates that are components constituting a liquid crystal display, a surface protection film is attached to temporarily protect the surface of the optical component. Such a surface protection film is used only in the process of manufacturing an optical component, and when the optical c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J151/08C09J7/02C08F283/06
CPCC09J7/22C09J7/38C09J7/40C09J133/04C09J175/04C09J2203/318C09J2301/302C09J2301/312C09J2301/408
Inventor 长仓毅岛口龙介长谷川良
Owner FUJIMORI KOGYO CO LTD
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