Patent ID: 8030367

Claim:
Radically coupled polytetrafluoroethylene polymer powder comprising at least one of radiation-chemically or plasma-chemically modified polytetrafluoroethylene powder including a surface, and homopolymers, copolymers or terpolymers radically coupled on the surface of at least one of the radiation-chemically or plasma-chemically modified polytetrafluoroethylene powder via a reaction in dispersion or in solid by reacting polytetrafluoroethylene powder that is at least one of radiation-chemically or plasma-chemically modified and has reactive perfluoroalkyl-(peroxy)radical centers, in dispersion or solid with polymerizable olefinically unsaturated monomers to form homopolymers, copolymers or terpolymers radically coupled to the surface of the polytetrafluoroethylene powder.