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Adhesive composition, adhesive composition for polarizing plate, adhesive for polarizing plate, and polarizing plate using same

An adhesive and composition technology, which is applied in the directions of non-polymer organic compound adhesives, non-polymer adhesive additives, adhesives, etc., can solve problems such as curing state deviation, achieve high production efficiency, inhibit discoloration resistance sexual effect

Active Publication Date: 2018-01-05
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, cationic polymerizable UV-curable adhesives are easily affected by humidity during curing, and there is also a problem that the curing state is prone to variation.

Method used

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  • Adhesive composition, adhesive composition for polarizing plate, adhesive for polarizing plate, and polarizing plate using same
  • Adhesive composition, adhesive composition for polarizing plate, adhesive for polarizing plate, and polarizing plate using same
  • Adhesive composition, adhesive composition for polarizing plate, adhesive for polarizing plate, and polarizing plate using same

Examples

Experimental program
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Embodiment

[0258] Although an Example is given below and this invention is demonstrated more concretely, this invention is not limited to the following Example unless the summary is exceeded. In addition, "part" and "%" in an example refer to a basis of weight.

[0259] Prepare the following ingredients.

[0260] [Metal or semimetal compound (A) capable of chelate formation]

[0261] ・(A-1) Tributyl borate ("Tri-n-butyl borate" manufactured by Kanto Chemical Co., Ltd.)

[0262] (A-2) Titanium tetraisopropoxide ("Orgatix TA-10" manufactured by Matsumoto Fine Chemical Co. Ltd.)

[0263] (A-3) Titanium tetra-n-butyrate ("Orgatix TA-25" manufactured by Matsumoto Fine Chemical Co. Ltd.)

[0264] ・(A-4) Aluminum triacetylacetonate ("NACEM Aluminum" manufactured by Nippon Chemical Industry Co., Ltd.)

[0265] ・(A-5) Boric acid (manufactured by Wako Pure Chemical Industries, Ltd.)

[0266] [Photopolymerizable compound (B) having a functional group capable of forming a chelate with a metal o...

Synthetic example 1

[0279] Add 0.3 g of dibutyltin dilaurate, 0.2 g of 4-methoxyphenol as a polymerization inhibitor, and 230 g of polytetramethylene glycol (molecular weight 650) to a 500 ml reaction vessel equipped with a stirrer, and stir them while The liquid temperature was heated to 40°C.

[0280] 185 g of hydrogenated diphenylmethane diisocyanate was slowly added to the reaction solution, and the temperature was raised to 60° C. over 1 hour. After continuing the reaction at 60°C until the free NCO% was 7.0%, 85 g of 2-hydroxyethyl acrylate was added, and the reaction was continued until the free NCO% was 0.5% or less to obtain a bifunctional polyether-based urethane acrylate (E-1).

[0281] In addition, the weight average molecular weight of the obtained bifunctional polyether-type urethane acrylate (E-1) was 3200, and the viscosity at 60 degreeC was 14000 mPa*s.

[0282] [Polymer (F)]

[0283] ・(F-1) Polymethyl methacrylate (manufactured by Sigma-Aldrich Corporation, SP value 9.1 to 9....

Embodiment 1

[0292]

[0293] 5 parts of tributyl borate (A-1) (solid content), 15 parts of 2-acetoacetoxyethyl methacrylate (B-1), dimethylacrylamide (C -2) Mix 50 parts, 30 parts of ethylene glycol diacrylate (C-3), 1.5 parts of Irgacure 184 (D-1), and 1.5 parts of Lucirin TPO (D-2) to obtain an adhesive combination things.

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Abstract

An adhesive agent composition which is an adhesive agent having excellent adhesion strength, is suitable for the bonding of any one of various protective films for polarizing plates to a polarizer, particularly the bonding of a protective film other than TAC to a polarizer, has excellent production efficiency, and also has excellent color fading resistance. In order to produce the adhesive agent composition, an adhesive agent composition is provided, which comprises (A) a metal or semimetal compound capable of forming a chelate and (B) a photopolymerizable compound having a functional group capable of forming a chelate in conjunction with the metal or semimetal, or which comprises (A-B) a chelate compound formed from (A) a metal or semimetal compound capable of forming a chelate and (B) a photopolymerizable compound having a functional group capable of forming a chelate in conjunction with the metal or semimetal.

Description

technical field [0001] The present invention relates to an adhesive composition, an adhesive composition for a polarizing plate, an adhesive for a polarizing plate, and a polarizing plate using the same. Adhesive composition used for active energy ray-curable acrylic adhesives for polarizers and protective films of plates. Background technique [0002] Liquid crystal display devices are widely used as image display devices such as liquid crystal televisions, computer monitors, mobile phones, and digital cameras. The above-mentioned liquid crystal display device has a structure in which polarizing plates are laminated on both sides of a glass substrate in which liquid crystal is sealed, and various optical functional films such as retardation plates are laminated thereon if necessary. [0003] Conventionally, a polarizing plate has been used in a structure in which a protective film is attached to at least one surface, preferably both surfaces, of a polarizer formed of a pol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J4/00B32B27/16C09J4/02C09J11/04C09J11/06G02F1/1335
CPCC08F220/283C08F220/343C08K5/0091C09J4/00C09J11/06G02B5/30
Inventor 小川照彦御手洗宏志
Owner MITSUBISHI CHEM CORP
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