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Adhesive composition and surface-protective adhesive film

A composition and adhesive technology, applied in the direction of adhesives, adhesive types, ester copolymer adhesives, etc., can solve problems such as inability to meet performance requirements, and achieve the effect of improving balance

Active Publication Date: 2014-02-12
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-protective adhesive film
  • Adhesive composition and surface-protective adhesive film
  • Adhesive composition and surface-protective adhesive film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0112] 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, added 100 parts by weight of 2-ethylhexyl acrylate, 0.9 parts by weight of 6-hydroxyhexyl acrylate, 0.4 parts by weight of acrylic acid, and added 60 parts by weight of solvent (ethyl acetate) . 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 a sample for acid value measurement described later.

Embodiment 2～9 and comparative example 1～4

[0114] Except that the composition of each monomer was adjusted as described in (A) to (C) in Table 1, the above-mentioned acrylic copolymer solution 1 used in Example 1 was operated in the same manner to obtain the 2-9 and the acrylic acid copolymer solutions in Comparative Examples 1-4.

[0115]

[0116] [Example 1]

[0117] To the acrylic copolymer solution 1 of Example 1 produced as described above, 1.5 parts by weight of 1-octylpyridinium hexafluorophosphate was added and stirred, and then 0.5 parts by weight of Coronate HX (coronet HX, hexamethylene (isocyanurate of diisocyanate compound), 0.5 parts by weight of Coronate L (coronet L, adduct of toluene diisocyanate compound and trimethylolpropane) were stirred and mixed to obtain the adhesive composition of Example 1 . This adhesive composition was coated on a release film made of a polyethylene terephthalate (PET) film coated with a silicone resin, and then dried at 90°C to remove the solvent to obtain an adhesive ...

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Abstract

The invention provides an adhesive composition, which has good anti-static performance, good balance, durability and reproductivity at low peeling speed and high peeling speed. The adhesive composition is composed of acrylic polymers, which have (A) acrylate monomer with C4-C10 carbon atoms of alkyl group, (B) copolymerized monomer having hydroxyl group, and (C) copolymerized monomer having carboxyl, and (D) anti-static agent which is used as ionic compound with a melting point of 30-80 DEG C.

Description

technical field [0001] The present invention relates to a surface protection film used in the manufacturing process of a liquid crystal display. More specifically, the present invention relates to an adhesive for a surface protection film for protecting the surface of an optical component such as a polarizing plate or a retardation plate by sticking on the surface of an optical component such as a polarizing plate or a retardation plate constituting a liquid crystal display. An adhesive composition, and a surface protection film using the adhesive composition. Background technique [0002] Conventionally, in the manufacturing process of optical components such as polarizing plates and retardation plates, which are components of liquid crystal displays, 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 compone...

Claims

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Application Information

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IPC IPC(8): C09J133/00C09J133/08C09J7/02
CPCG02B5/3025G02B5/305C09J7/22C09J7/38C09J7/385C09J7/40C09J9/00C09J133/04C09J2203/318C09J2301/312C09J2301/302
Inventor 长仓毅岛口龙介长谷川良
Owner FUJIMORI KOGYO CO LTD