Vulcanizable fluorine rubber composition

Abstract

Abstract PURPOSE:The titled composition having improved low-temperature characteristics without lowering fluorine rubber, obtained by blending fluorine rubber with ethylene.alpha-olefin copolymer rubber having a hot toluene insoluble amount of >=a specific value and average particle diameter of <= specific value. CONSTITUTION:(A) Fluorine rubber having preferably 35-75wt% fluorine content, 20-180 Mooney viscosity (121 deg.C) and 1.25-2.1 specific gravity is blended with (B) copolymer rubber obtained by crosslinking copolymer rubber of ethylene and 3-10C alpha-olefin, which may contain <= 30 shown by iodine value of a polyene component and may be modified with a halogen in a ratio of <=40%, in a latex state and drying the copolymer rubber so that it is adjusted to >=30% hot toluene insoluble amount and <=50mum average particle diameter, in a weight ratio of the component A/B=95/5-20/80.

Inventors

• 👤 Tetsuo Tojo
• 👤 哲夫 東條
• 👤 Takashi Nakahara
• 👤 隆 中原
• 👤 Yasuhiko Otawa
• 👤 大多和　保彦
• 👤 Akira Matsuda
• 👤 松田　昭

Bibliographic Details