Patent ID: 7279530
Filing Date: 2007-10-09
Classification: C08F

Abstract:
1. A process for producing a low-friction fluororubber crosslinked product, comprising: preliminarily polyol crosslinking a polyol-crosslinkable fluororubber composition according to need, the composition comprising a polyol-crosslinkable fluororubber in combination with a crosslinking accelerator, a polyol crosslinking agent, calcium hydroxide and optionally magnesium oxide, wherein the crosslinking accelerator has a weight ratio (R) to the polyol crosslinking agent (crosslinking accelerator/polyol crosslinking agent) in the range of 0.9 to 5; and heat treating the fluororubber composition at a temperature in the range of 150 to 300° C. for 0.1 to 48 hours to produce a low-friction fluororubber crosslinked product having a surface frication coefficient of less than 1.