AQUEOUS URETHANE RESIN COMPOSITION, FILM OBTAINED BY USING SAME, AND OPTICAL FILM

• Main Authors: IMADA TOMOYUKI, HIGESHIRO TOMOKAZU, KURIYAMA CHISATO, KITADA MITSURU, CHIYONOBU KAZUHIKO
• Format: Patent
• Language: English; French; German
• Published: 23.07.2014
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; GENERAL PROCESSES OF COMPOUNDING; HUMAN NECESSITIES; HYGIENE; INKS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING-UP

A problem to be solved by the present invention is to provide an aqueous urethane resin composition capable of forming a film, a coating film, or the like which has high refractive performance at a level usable for, for example, optical application and which satisfy excellent adhesion to various substrates and excellent blocking resistance. The present invention relates to an aqueous urethane resin composition including a urethane resin (A) and an aqueous medium (B), wherein the urethane resin (A) is produced by reacting a polyether-ester polyol (a1-1) with a polyisocyanate (a2), the polyether-ester polyol (a1-1) being produced by reacting an alkylene oxide adduct of a bisphenol compound with an aromatic polycarboxylic acid.