THERMOSETTING POLYURETHANE COMPOSITION AND USE THEREOF

• Main Authors: ARIMACHI Kentaro, IIZUKA Shingo, TAKENAKA Akira, OKAZAWA Takahide
• Format: Patent
• Language: English; French; Japanese
• Published: 01.02.2018
• Subjects: BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVINGPURPOSES; BLASTING; CHAINS; CHEMISTRY; COMPOSITIONS BASED THEREON; CONVEYING; ENGINEERING ELEMENTS AND UNITS; FITTINGS PREDOMINANTLY USED THEREFOR; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HANDLING THIN OR FILAMENTARY MATERIAL; HEATING; LIGHTING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MECHANICAL ENGINEERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PACKING; PERFORMING OPERATIONS; PNEUMATIC TUBE CONVEYORS; SHOP CONVEYOR SYSTEMS; STORING; THEIR PREPARATION OR CHEMICAL WORKING-UP; THERMAL INSULATION IN GENERAL; TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING; TRANSPORTING; WEAPONS

The present invention relates to a thermosetting polyurethane composition for making a belt used in the environment where the belt makes contact with oils containing unsaturated fatty acids and with a metal, the thermosetting polyurethane composition containing (A) an isocyanate group-terminated urethane prepolymer having polyester units and/or polycarbonate units, (B) a hydrolysis inhibitor, and (C) a curing agent. La présente invention concerne une composition de polyuréthanne thermodurcissable pour la fabrication d'une courroie utilisée dans l'environnement où la courroie entre en contact avec des huiles contenant des acides gras insaturés et avec un métal, la composition de polyuréthanne thermodurcissable contenant (A) un prépolymère d'uréthane à groupes terminaux isocyanates ayant des unités de polyester et/ou des unités de polycarbonate, (B) un inhibiteur d'hydrolyse et (C) un agent de traitement. 本発明は、不飽和脂肪酸を含む油類及び金属と接触する環境で使用されるベルトを形成するための熱硬化性ポリウレタン組成物であって、ポリエステル単位及び／又はポリカーボネート単位を有するイソシアネート基末端ウレタンプレポリマー（Ａ）、加水分解防止剤（Ｂ）及び硬化剤（Ｃ）を含む熱硬化性ポリウレタン組成物に関する。