Tetrafluoroethylene/hexafluoropropylene copolymers including perfluoroalkoxyalkyl pendant groups

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United States of America Patent

PATENT NO 10730980
APP PUB NO 20180030184A1
SERIAL NO

15550324

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Abstract

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A copolymer having tetrafluoroethylene units, hexafluoropropylene units, and units independently represented by formula in a range from 0.02 to 2 mole percent, based on the total amount of the copolymer. Rf is a linear or branched perfluoroalkyl group having from 1 to 8 carbon atoms and optionally interrupted by one or more —O— groups, z is 1 or 2, each n is independently from 1 to 6, and m is 0 or 1. The copolymer has a melt flow index in a range from 25 grams per 10 minutes to 35 grams per 10 minutes and has a combined number of unstable end groups and —CF2H end groups in a range from 25 per 106 carbon atoms up to 120 per 106 carbon atoms. The copolymer can be extruded to make articles, such as insulated cables. A method of making the copolymer is also disclosed.

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Patent Owner(s)

Patent OwnerAddress
3M INNOVATIVE PROPERTIES COMPANYP O BOX 33427 ST PAUL MN 55133-3427

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duchesne, Denis Woodbury, US 41 321
Hintzer, Klaus Kastl, DE 257 2983
Kaspar, Harald Burgkirchen, DE 91 1272
Lochhaas, Kai H Neuötting, DE 40 262
Nelson, Per M Woodbury, US 7 105
Schrooten, Jens C Muehldorf am Inn, DE 2 9
Weilandt, Karl D Meerbusch, DE 16 23
Zipplies, Tilman C Burghausen, DE 75 321

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