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 the problem of temporary suspension of crosslinking reaction, reduce the amount of addition, and prevent the phenomenon of binder residue , improve the effect of preventing

Active Publication Date: 2017-04-12
FUJIMORI KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 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

[0127] 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, 8-hydroxyoctyl acrylate of 3.0 parts by weight, acrylic acid of 0.4 parts by weight, polypropylene glycol monoacrylate of 10 parts by weight The average repeating number of alkylene oxides of the alkyl diol chain 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 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 used as a sample for acid value measurement described later.

Embodiment 2～6 and comparative example 1～7

[0129] 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 copolymer solutions used in Examples 2 to 6 and Comparative Examples 1 to 7 were obtained.

[0130] Table 1

[0131]

[0132]

[0133] [Example 1]

[0134] 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 and 0.1 part by weight of α-tocopherol, 2.0 parts by weight of Coronate HX (Coronate HX, isocyanurate of hexamethylene diisocyanate compound) and 0.1 part by weight of titanium triacetylacetonate were added. Stir and mix to obtain the binder composition of Example 1. This adhesive composition was coated on a release film...

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Abstract

The present invention provides an adhesive composition and a surface protective film, which have antistatic performance, excellence balance of adhesiveness in a low exfoliation speed and a high exfoliation speed, a long pot life, and excellent durability and reworkability. The adhesive composition comprises: (A) a (meth)acrylic acid ester monomer having C4 to C18 alkyl groups; (B) a hydroxyl-containing co-polymerizable monomer; (C) a carboxyl-containing co-polymerizable monomer; (D) polyalkylene glycol mono(meth)acrylate ester monomer; (E) a nitrogen-containing vinyl monomer containing no hydroxyl group or an acryl-based polymer, as a co-polymer having an acid value of 0.01 to 8.0 and including an alkoxy-containing alkyl(meth)acrylate monomer; (F) a bifunctional or higher isocyanate compound; (G) a cross-linking catalyst for a metal chelate; (H) a keto-enol tautomer compound; (I) an antistatic agent; (J) a polyether-modified siloxane compound; and (K) an antioxidant.

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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Patent Type & Authority Patents(China)
IPC IPC(8): C09J151/08C09J133/08C09J11/08C09J11/06C09J7/02
CPCC09J11/02C09J11/06C09J11/08C09J133/06C09J133/08C09J133/10C09J7/22
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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