Adhesive composition and surface protection film

A technology of adhesives and compositions, applied in the directions of adhesives, adhesive types, ester copolymer adhesives, etc., can solve the problem of temporary stop of cross-linking reaction, reduce the amount of addition and prevent the phenomenon of residual adhesive , improve the prevention effect

Active Publication Date: 2015-06-03
FUJIMORI KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] However, in the method described in Patent Document 2, the weight ratio of metal acetylacetone to acetylacetone is set to 2:1, but in the acrylic binder Even when this compounding ratio is used in the manufacturing process, the crosslinking reaction cannot be 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

[0129] 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, 3.0 parts by weight of 8-hydroxyoctyl acrylate, 10 parts by weight of polypropylene glycol monoacrylate (forming polyalkylene glycol chain The average repetition number of alkylene oxide n=12), and 60 parts by weight of solvent (ethyl acetate) was added at the same time. 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

[0130] [Examples 2-6, Reference Examples 1-3 and Comparative Examples 1-4]

[0131] Except that the composition of each monomer was adjusted as described in (A) to (E) and (I-2) in Table 1, it was carried out in the same manner as the above-mentioned acrylic copolymer solution 1 used in Example 1, Acrylic acid copolymer solutions used in Examples 2 to 6, Reference Examples 1 to 3, and Comparative Examples 1 to 4 were obtained.

[0132] Table 1

[0133]

[0134]

[0135] [Example 1]

[0136] To the acrylic copolymer solution 1 of Example 1 manufactured as described above, 1.5 parts by weight of 1-octylpyridinium hexafluorophosphate, 0.05 parts by weight of polyether-modified siloxane compound (HLB=7), 8.5 parts by weight were added. After stirring acetylacetone in parts by weight, add 2.0 parts by weight of Coronate HX (coronate HX, the isocyanurate of hexamethylene diisocyanate compound), 0.1 parts by weight of titanium triacetylacetonate, and stir and mix to obtain Exa...

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Abstract

The invention provides an adhesive composition and a surface protection film. The adhesive composition has an anti-static property, exhibits excellent adhesion balance at low peeling speed and high peeling speed, can be stored in a long period of time, and also exhibits excellent durability and reprocessing performance. The adhesive composition includes: (A) a (meth) acrylate monomer with an alkyl group having C4- C18 carbon atoms, (B) a copolymerized monomer containing hydroxyl, (C) a copolymerized monomer containing carboxyl, (D) a polyalkylene glycol single (meth) acrylate monomer, (E) a vinyl monomer containing nitrogen and not containing hydroxyl or an acrylate polymer which is a copolymer of alkyl (meth)acrylate monomers containing alkoxy, (F) an isocyanate compound containing more than two functional groups, (G) a crosslink accelerant of metallo-chelate, (H) a keto-enol tautomer compound, (I) an anti-static agent, and (J) a polyether modified siloxane compound.

Description

technical field [0001] The invention relates to an adhesive composition and a surface protection film. In more detail, the present invention relates to the provision of a polarizing plate having antistatic properties, excellent balance of adhesive force at low peeling speed and high peeling speed, long shelf life, durability, and reworkability. Adhesive composition for surface protection film and surface protection film. Background technique [0002] 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 group, a carboxyl group, etc. as a functional group. Acrylic adhesive composed of In addition, adhesives that appropriately adjust various physical properties such as adhesive force are required. In particular, in order to be suitable for the manufacturing process of factory production, adhesives for surface protection films, etc., require...

Claims

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Application Information

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IPC IPC(8): C09J133/08C09J151/08C09J11/06C09J11/08C09J7/02
CPCC09J7/20C09J133/06C09J133/064C09J155/00G02B5/30
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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