Long-chain polymethylene halide telomers
Assignee3M Innovative Properties Company
InventorsGeorge G. I. Moore, Yu Yang, Richard M. Flynn
Life of this patent
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Abstract
A composition comprises a distribution of telomers of ethylene and at least one fluoroalkyl or perfluoroalkyl halide, the telomers comprising at least one polymethylene segment (—(CH2)n—) and at least one halomethyl group (—CXH2) and optionally comprising at least one non-fluorine heteroatom, and the halogen being selected from iodine and bromine; wherein the distribution has a number average ratio of methylene moieties of the polymethylene segment to the halomethyl groups of at least about 15.
Claims20
A composition comprising a distribution of telomers of ethylene and at least one fluoroalkyl or perfluoroalkyl halide, said telomers comprising at least one polymethylene segment (—(CH2)n—) and at least one halomethyl group (—CXH2) and optionally comprising at least one non-fluorine heteroatom, and said halogen being selected from iodine and bromine;
- wherein said distribution has a number average ratio of the methylene moieties of said polymethylene segment to said halomethyl groups of at least 15.
A composition comprising a distribution of telomers of ethylene and at least one fluoroalkyl or perfluoroalkyl halide, said telomers comprising at least one polymethylene segment (—(CH2)n—) and at least one halomethyl group (—CXH2) and optionally comprising at least one non-fluorine heteroatom, and said halogen being selected from iodine and bromine;
- wherein said distribution has a number average ratio of the methylene moieties of said polymethylene segment to said halomethyl groups of at least 15;
- and wherein said halogen is replaced with an organic functional moiety, Z, that is selected from carbonyl-containing, sulfur-containing, alkenyl-containing, nitrogen-containing, and oxygen-containing moieties, and combinations thereof.
A composition comprising a distribution of telomers of ethylene and at least one fluoroalkyl or perfluoroalkyl halide, said distribution being selected from the class of product telomer distributions that is represented by the following general formula:
- RC(R)(R)—(CH2)n—X (IV)
- wherein each R is independently hydrogen, fluorine, or an alkyl, fluoroalkyl, or perfluoroalkyl group of 1 to 6 carbon atoms that optionally comprises at least one non-fluorine heteroatom, or a perfluoroalkyl group of 1 to 25 carbon atoms that comprises at least one oxygen atom, with the proviso that at least one of said R groups comprises fluorine;
- X is iodine or bromine;
- and n is a number average value of at least 15.
A fluoropolymer prepared by polymerization off a composition comprising a distribution of telomers of ethylene and at least one fluoroalkyl or perfluoroalkyl halide, said telomers comprising at least one polymethylene segment (—(CH2)n—) and at least one halomethyl group (—CXH2) and optionally comprising at least one non-fluorine heteroatom, and said halogen being selected from iodine and bromine;
- wherein said distribution has a number average ratio of the methylene moieties of said polymethylene segment to said halomethyl groups of at least 15;
- and wherein said halogen is replaced with an organic functional moiety, Z, that is selected from acrylate, methacrylate, and urethane moieties, and combinations thereof.
Dependencies are inferred from the claim text.