Aqueous emulsion polymerization in the presence of ethers as chain transfer agents to produce fluoropolymers
Assignee3M Innovative Properties Company
InventorsHarald Kaspar, Klaus Hintzer, Karl-Dieter Weilandt, Jost Krichel, Erik Peters, Lisa P. Chen
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Abstract
The present invention provides a method of making a fluoropolymer comprising repeating units derived from one or more gaseous fluorinated monomers. The method comprises an aqueous emulsion polymerization of gaseous fluorinated monomers in the presence of an ether selected from the group consisting of dimethyl ether (DME), methyl tertiary butyl ether (MTBE) and mixtures thereof.
Claims20
Method of making a fluoropolymer comprising repeating units derived from one or more gaseous fluorinated monomers, said method comprising an aqueous emulsion polymerization of said gaseous fluorinated monomers in the presence of an ether selected from the group consisting of dimethyl ether (DME), methyl tertiary butyl ether (MTBE) and mixtures thereof.
Method of making a fluoropolymer comprising repeating units derived from one or more gaseous fluorinated monomers, said method comprising an aqueous emulsion polymerization of said gaseous fluorinated monomers in the presence of an ether selected from the group consisting of dimethyl ether (DME), methyl tertiary butyl ether (MTBE) and mixtures thereof, wherein said fluoropolymer has a partially fluorinated backbone.
Dependencies are inferred from the claim text.