Patent ID: 6074698
Filing Date: 2000-06-13
Classification: C08J

Abstract:
A process for producing a surface modified rubber, comprising:contacting a treatment liquid containing a monomer having a polymerizable double bond, a polymerization initiator and a solvent with a rubber base material, wherein the monomer is a monomer of an ethylenically unsaturated fluorocompound or an ethylenically unsaturated organosiloxane or both and said solvent dissolves the monomer and the polymerization initiator and swells the rubber base material such that the solvent, the monomer and the polymerization initiator infiltrate the rubber base material; andheating the thus contact treated rubber base material at a temperature to activate the polymerization initiator so that the monomer is polymerized to thereby modify the rubber base material at its surface and vicinity thereof and wherein the contact treated rubber base material is heated in the presence of not more than 1.0.times.10.sup.19 oxygen molecules per cm.sup.3.