Copolymers of polyhalogenated isocyanates
AssigneeE. I. Du Pont de Nemours and Company
InventorWilliam J. Middleton
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Abstract
Disclosed herein are polyhalogenated isocyanates (intermediates for polyfluorinated vinyl isocyanates); polyfluorinated vinyl isocyanates, process therefor, and homopolymers and copolymers thereof; and use of said polyfluorinated vinyl isocyanate homopolymers and copolymers as water and oil repelling agents for cloth and paper.
Claims12
A copolymer containing at least an effective crosslinking amount of a vinyl isocyanate of the formula ##EQU11## wherein R is fluorine, C.sub.1 -C.sub.2 perfluoroalkyl, C.sub.1 -C.sub.2 .omega.-chloroperfluoroalkyl or C.sub.1 -C.sub.2 .omega.-hydroperfluoroalkyl and at least one fluorine-containing monomer selected from the group consisting of vinyl fluoride, vinylidene fluoride, trifluoroethylene, chlorotrifluoroethylene, tetrafluoroethylene, hexafluoropropylene, trifluoromethyl trifluorovinyl ether, and perfluoro (2-methylene-4-methyl-1,3-dioxolane).
Dependencies are inferred from the claim text.