ACRYLIC RUBBER, CROSSLINKABLE RUBBER COMPOSITION, AND RUBBER CURED PRODUCT

• Main Authors: MIYAUCHI Toshiaki, KAMBE Yuya
• Format: Patent
• Language: English; French; Japanese
• Published: 08.04.2021
• Subjects: ADHESIVES; BLASTING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CYLINDERS; DYES; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PISTONS; POLISHES; SEALINGS; SHOCK-ABSORBERS; SPRINGS; THEIR PREPARATION OR CHEMICAL WORKING-UP; THERMAL INSULATION IN GENERAL; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WEAPONS

Provided is an acrylic rubber, which comprises acrylic acid alkyl ester units, crosslinking-point monomer units, bifunctional monomer units represented by formula (A-1), and ethylene units. The acrylic rubber has a toluene-insoluble content of 4 to 40 mass%.　In the formula, n is 1 to 9, R1 is a hydrogen atom or a methyl group, and R2 is a C2-4 alkanediyl group. L'invention concerne un caoutchouc acrylique, qui comprend des unités ester alkylique d'acide acrylique, des unités monomères à point de réticulation, des unités monomères bifonctionnelles représentées par la formule (A-1) et des unités éthylène. Le caoutchouc acrylique a une teneur insoluble dans le toluène de 4 à 40 % en masse.　Dans la formule, n est 1 à 9, R1 est un atome d'hydrogène ou un groupe méthyle, et R2 est un groupe alcanediyle en C2-4. アクリル酸アルキルエステル単位と、架橋席モノマー単位と、下記式（Ａ－１）で表される二官能モノマー単位と、エチレン単位と、を有し、トルエン不溶分が４～４０質量％である、アクリルゴム。　式中、ｎは１～９を示し、Ｒ１は水素原子又はメチル基を示し、Ｒ２は炭素数２～４のアルカンジイル基を示す。