Multilayer fluoropolymer films

摘要

The invention relates to a multi-layer film having at least one fluoropolymer layer, useful for high-purity contact applications. Preferably the fluoropolymer layer(s) are polyvinylidene fluoride polymers and copolymers.

主权项

1. A sterilized, co-extruded, multi-layer film for use in sterile chemical, biological, biomedical or biopharma applications having a polyvinylidene fluoride (PVDF) homopolymer or copolymer layer in contact with a biological or biopharma fluid or gas, and wherein said film has undergone sterilization by exposure to steam, radio frequency radiation, or gamma radiation, wherein said film is a barrier for said biological or biopharma fluid or gas, and wherein said co-extruded multi-layer film is
a multilayer film consisting of one layer of a polyvinylidene fluoride homopolymer and one layer of a polyvinylidene fluoride copolymer wherein said PVDF copolymer comprises greater than 70 weight percent of vinylidene fluoride monomer units.