PHOTOCURABLE COMPOSITION FOR LIQUID-CRYSTAL PANEL SEALING AND LIQUID-CRYSTAL PANEL

• Main Authors: YONEHARA, HISATOMO, TAKEDA, HIROYUKI, IWAMOTO, AKIHIRO, SAKURAI, YOSHINOBU
• Format: Patent
• Language: English; French; Japanese
• Published: 24.12.2003
• Edition: 7
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DYES; FREQUENCY-CHANGING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PAINTS; PHYSICS; POLISHES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; USE OF MATERIALS AS ADHESIVES

A photocurable composition for liquid-crystal panel sealing which is excellent in heat resistance and moisture resistance, i.e., water vapor-barrier properties, and gives a liquid-crystal panel undergoing no decrease in voltage retention. The photocurable composition contains (1) a photopolymerizable compound having a fused alicyclic structure and a maleimide group and (2) a photopolymerizable compound having an alicyclic structure and two or more (meth)acryloyl groups per molecule. La présente invention concerne une composition photodurcissable d'étanchéification de panneau à cristaux liquides. Ladite composition présente une résistance à la chaleur et une résistance à l'humidité excellentes, c'est-à-dire, des propriétés anti-buée et permet d'obtenir un panneau à cristaux liquides ne subissant aucune diminution de rétention de tension. Ladite composition photodurcissable contient (1) un composé photopolymérisable présentant une structure alicyclique fondue et un groupe maléimide et (2) un composé photopolymérisable présentant une structure alicyclique et au moins deux groupes (méth)acryloyles par molécule.