Fluoropolymer hexafluoropropene, tetrafluorethene and 1,1-difluoroethene
AssigneeE. I. Du Pont de Nemours and Company
InventorsAlbert L. Moore, Clare A. Stewart, Jr., Isadore Swerlick
Life of this patent
Estimating the term…
Abstract
Terpolymer consisting of 12 to 48% by weight TFE units, 7 to 24% by weight HFP units and 30 to 81% by weight VF.sub.2 units, provided that when the content of TFE units is less than 42% by weight, the content of HFP units is less than 15% by weight. Heat-stable films such as polyimide film can be coated with a coating comprising the terpolymer to provide heat-sealable film useful as wire insulation.
Claims3
A terpolymer consisting of 12 to 48% by weight of polymerized tetrafluoroethylene units, 7 to 24% by weight of polymerized hexafluoropropylene units and 30 to 81% by weight of polymerized vinylidene fluoride units, provided that when the content of tetrafluoroethylene units is less than 42% by weight, the content of hexafluoropropylene units is less than 13% by weight.
Dependencies are inferred from the claim text.