Patent ID: 11932755
Assignee: HUTCHINSON
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B  F | IPC B  C  F

Claim 26:
27. A method for preparing a crosslinkable rubber composition according to claim 1, wherein the method comprises the following steps:
a) thermomechanical mixing of said at least one fluoroelastomer (FKM), of said filler and of said micronised powder of at least one fluorinated thermoplastic polymer and of other ingredients of the crosslinkable rubber composition with the exception of a crosslinking system, the mixing being implemented at a falling temperature between 90 and 100° C. with a peak temperature between 105 and 115° C.;
b) mechanical mixing of the mixture obtained in step a) on cylinders with the adding of the crosslinking system comprising a peroxide or a bisphenol, for the obtaining of the crosslinkable rubber composition.