JP2008291071A5

JP2008291071A5 -

Info

Publication number: JP2008291071A5
Application number: JP2007136080A
Authority: JP
Filing date: 2007-05-23
Publication date: 2010-05-20

Description

更に本発明は、ブロック樹脂が、原子移動ラジカル重合法で重合してなる上記粘着剤組成物に関する。 The invention further block resin, relates to the above adhesive composition ing by polymerization in atom transfer radical polymerization.

更に本発明は、ブロック樹脂のガラス転移温度（Ｔｇ）が、−５５〜０℃である上記粘着剤組成物に関する。 Furthermore, this invention relates to the said adhesive composition whose glass transition temperature (Tg) of block resin is -55-0 degreeC .

更に本発明は、ブロック樹脂の重量平均分子量（Mw）が、３０００〜３０００００である上記粘着剤組成物に関する。 Furthermore, this invention relates to the said adhesive composition whose weight average molecular weight (Mw) of block resin is 3000-300000 .

更に本発明は、ブロック樹脂の多分散度［重量平均分子量（Ｍｗ）／数平均分子量（Ｍｎ）］が、１．１〜２．５である上記粘着剤組成物に関する。 The invention further polydispersity block resin [weight average molecular weight (Mw) / number average molecular weight (Mn)] is about 1.1 to 2.5 der Ru the PSA composition.

Claims

The hydroxyl value obtained by polymerizing an ethylenically unsaturated monomer containing an ethylenically unsaturated monomer (A) having a hydroxyl group is 0.3 to 30 mgKOH / g, and is represented by [X]-[Y]-[Z]. A block resin having a structure
A pressure-sensitive adhesive composition comprising a compound (B) having at least two functional groups capable of reacting with a hydroxyl group,
Blocks [X] and [Z] of the block resin are blocks each having a glass transition temperature (Tg) of 10 ° C. or higher, and block [Y] is a block having a glass transition temperature (Tg) of −10 ° C. or lower. And
The weight ratio of the blocks [X], [Y] and [Z] is [X] 3 to 40% by weight, [Y] 50 to 94% by weight, [Z] 3 to 40% by weight, and
80 to 100% by weight of the ethylenically unsaturated monomer (A) having a hydroxyl group is contained in the blocks [X] and [Z].

Block resin is formed by polymerizing in atom transfer radical polymerization according to claim 1 adhesive composition.

The pressure-sensitive adhesive composition according to claim 1 or 2 , wherein the block resin has a glass transition temperature (Tg) of -55 to 0 ° C.

The pressure-sensitive adhesive composition according to any one of claims 1 to 3 , wherein the block resin has a weight average molecular weight (Mw) of 3000 to 300,000.

Polydispersity block resin [weight average molecular weight (Mw) / number average molecular weight (Mn)] is, the pressure-sensitive adhesive composition according to claim 1-4, wherein either a 1.1 to 2.5.

The functional group capable of reacting with a hydroxyl group in the compound (B) having at least two functional groups capable of reacting with a hydroxyl group is 1 to 50 mol% with respect to the hydroxyl group in the block resin. Adhesive composition.

The laminated body by which an optical member is laminated | stacked on the adhesive layer formed from the adhesive composition in any one of Claims 1-6.

The glass member for liquid crystal cells, the adhesive layer formed from the adhesive composition in any one of Claims 1-6, and the member for liquid crystal cells laminated | stacked sequentially.