Multilayer rubber article

Details Multilayer rubber article Multilayer rubber article

F - Mech Eng,Light,Heat,Weapons

16

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154/139, 189/44

F16L 13/02 (2006.01) B32B 1/08 (2006.01) B32B 25/00 (2006.01) B32B 25/04 (2006.01) B32B 25/14 (2006.01) C08K 5/11 (2006.01)

Patent

CA 2039292

ABSTRACT OF THE DISCLOSURE A multilayer rubber article, which can be tubular in shape, comprising at least one acrylic rubber layer formed of an acrylic rubber composition and an epichloro- hydrin rubber layer formed of an epichlorohydrin rubber composition which can be in direct contact with the acrylic rubber layer, wherein each of the two rubber compositions contains at least one ester type plasticizer, and at least the ester type plasticizer in the acrylic rubber layer is selected from the group consisting of ether ester type plasticizers and plasticizers of esters of aromatic carboxylic acids having three or more hydroxyl groups. The acrylic rubber layer has improved low-temperature resistance both in the early stages and after a substantial period of time.

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