BLOCK CARBOXYLIC ACID TYPE PHOTOALIGNMENT MATERIAL

• Main Authors: AWA SHIGEKI, KAHATA MASAYUKI, KAWATSUKI YOSHIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 16.07.2015
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide means capable of forming a retardation film and/or a liquid crystal alignment film on a resin film.SOLUTION: A photoalignment liquid crystalline polymer comprises, as structural units, at least one (meth)acrylic monomer having a carboxyl group protected by a protecting group at a position different from a (meth)acrylate group, and at least one (meth)acrylic monomer having a photoaligning moiety. An alignment film is obtained by forming a film from an organic solvent solution of the above polymer. A retardation film and a liquid crystal alignment film are obtained by subjecting the above alignment film to photoalignment, heat treatment, and deprotection. 【課題】樹脂フィルム上への位相差膜及び／又は液晶配向膜の形成を可能にする手段の提供。【解決手段】 （メタ）アクリレート基とは異なる位置に保護基で保護されたカルボキシル基を有する（メタ）アクリル系モノマーの少なくとも１種と，光配向性部位を有する（メタ）アクリル系モノマーの少なくとも１種とを構成単位として含んでなる光配向性液晶性ポリマー，及び該ポリマーの有機溶媒溶液で成膜することによる配向膜，及びこれを光配向させ熱処理して脱保護してなる，位相差膜及び液晶配向膜。【選択図】なし