PRESSURE-SENSITIVE ADHESIVE AGENT COMPOSITION FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE AGENT LAYER FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE-TYPE OPTICAL FILM, AND IMAGE DISPLAY DEVICE

• Main Authors: SUGINO SHOKO, YASUI ATSUSHI, SATAKE MASAYUKI, TOYAMA YUSUKE, FUJIWARA ARATA
• Format: Patent
• Language: English
• Published: 03.10.2013
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PHYSICS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive agent composition for optical film, capable of forming a pressure-sensitive adhesive agent layer satisfying the reworkability capable of easily peeling an optical film from a liquid crystal panel and the like without any adhesive residue, and the durability not generating exfoliation and lifting in the state of an optical film being laminated.SOLUTION: A pressure-sensitive adhesive agent composition for an optical film contains a (meth)acrylic polymer (A) and a polyether compound (B) which has a polyehter skeleton and at least one terminal of which has a reactive silyl group represented by formula (1):-SiRMwherein R is a 1-20C monovalent organic group which may have a substituent; M is a hydroxyl group or a hydrolyzable group; and a is an integer of 0 to 2; in the case where a plurality of R are present, the plurality of R may be identical or different mutually, and in the case where a plurality of M are present, the plurality of M may be identical or different mutually.