METHOD OF DECOMPOSING SOFT URETHANE RESIN AND PREPARATION METHOD OF RECLAIMED RESIN USING THE DECOMPOSED PRODUCT

• Main Authors: SATANI SHIHOKO, KAO MIN TAI, FUKAYA TARO
• Format: Patent
• Language: English
• Published: 03.06.2003
• Edition: 7
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; 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; WORKING-UP

PROBLEM TO BE SOLVED: To provide a method of decomposing a soft urethane resin where the decomposed product is processed to form a reclaimed resin composition by a simple process, and also to provided a method of producing a reclaimed resin using the decomposed product. SOLUTION: The method is characterized by setting a relatively small ratio of an amine compound to that of a soft urethane resin compared to conventional cases. The ratio is specified in different ranges for the one with the boiling point of 200°C or more and for the one with 200°C or less. COPYRIGHT: (C)2003,JPO