Patent ID: 8217119
Filing Date: 2012-07-10
Classification: C08L

Abstract:
1. Polymeric compositions comprising: 1) at least one thermoprocessable semicrystalline halopolymer; 2) 0.01%-10% by weight of 1) of an additive formed of one or more (per)fluoropolyether polymers of formula wherein: wherein A′ is a perfluoropolyether chain comprising one or more repeating units selected from the group consisting of (CF a, b, equal to or different from each other, are integers equal to 0 or 1 with the proviso that the block A linked to the Q-O— end group has a=1 and the block A linked to the Q′ end group has b=0; wherein at least one of B is homopolymerizable by radical route, and of formula: wherein j is an integer from 1 to 30, j′ is an integer from 0 to 29, with the proviso that (j+j′) is higher than 2 and lower than 30; wherein the halogen is F, or Cl; C —CHO, —CH(OCH