METHOD FOR PRODUCING ELASTOMER COMPOSITION

• Main Author: KAWAMO TETSUJI
• Format: Patent
• Language: English
• Published: 24.12.2009
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPOSITIONS BASED THEREON; 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; 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

PROBLEM TO BE SOLVED: To provide a method for producing an elastomer composition which improves oil resistance and cold resistance of a crosslinked NBR composition, and an elastomer composition produced by the production method. SOLUTION: The method for producing an elastomer composition includes: making a crosslinked acrylonitrile-butadiene rubber composition, a radical polymerizable monomer and a radical polymerization initiator coexist in supercritical carbon dioxide; thermally decomposing the radical polymerization initiator; and polymerizing the radical polymerizable monomer. The elastomer composition produced by the production method is also provided. COPYRIGHT: (C)2010,JPO&INPIT