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US 5,969,067 AGranted
Phosphorus-containing fluoromonomers and polymers thereof
AssigneeE.I. duPont de Nemours and Company
InventorsPaul Douglas Brothers, Ming-Hong Hung, Michael Joseph Michalczyk, Tatsuhiro Takahashi
Life of this patent
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Abstract
Fluorinated vinyl ethers having phosphorus-containing groups are useful as monomers in making fluoropolymers having functional sites.
Claims12
A compound having the formula
- CF.sub.2 .dbd.CF--R.sub.f --(CH.sub.2).sub.n --OP(O).sub.p --.PHI..sub.2
- wherein n is 1-3, p is 0 or 1, R.sub.f is perfluoroalkyl or perfluoroalkoxy having 1-20 carbon atoms, .PHI. is bromine, chlorine, or OM, and M is H, NH.sub.4 or alkali metal.
Dependencies are inferred from the claim text.