Patent ID: 6489419
Filing Date: 2002-12-03
Classification: B29C,B29K,C08J,C08L,Y10T

Abstract:
A non-free flowable, non-dusting molding powder having a bulk density of at least 450 g/l of a suspension polymer with units of tetrafluoroethylene and 0.01 to 1% by weight of units of at least one perfluoro(alkyl-vinyl) ether with an alkyl group of 1 to 4 carbon atoms, obtainable by grinding the primary particles of the polymer to an average particle diameter d50 of 10 to 50 &mgr;m and reagglomerating these particles in a medium consisting essentially of water to give an average agglomerate diameter d50 of about 30 to about 100 &mgr;m.