E.i. Dupont De Nemours and Company

The Chemours Company Fc, LLC

Alphagary Corporation

George Martin Pruce

Sundar Kilnagar Venkataraman

Mark A Jozokos

John L Netta

Yevgeniy I Globus

James R Hoover

Dennis J Kountz

Stuart Karl Randa

A Li-ion battery is provided in combination with fluorinated material positioned effective to abate combustion by said battery, the fluorinated material being normally non-gaseous and non-liquid and being itself effective to provide the combustion abatement by said battery, such fluorinated material being is such forms as the material of construction of the battery case containing the battery, film wrapped around said battery, and/or semi-solid material at least proximate to the battery, such as by forming a coating on said battery or said film on said battery.

Li-ion battery having improved safety against combustion

The present invention relates to the extrusion of a composition comprising tetrafluoroethylene/hexafluoropropylene copolymer, 10-60 wt % inorganic particulate filler, and hydrocarbon polymer for dispersing the filler in the copolymer, preferably 0.1 to 5 wt % hydrocarbon polymer, at low temperatures, e.g. up to 650&#xb0; F. (343&#xb0; C.).

Extrusion process

The present invention relates to jacketed cable especially useful for plenum enclosures of buildings, the jacket of the cable comprising perfluoropolymer, such as tetrafluoroethylene/hexafluoropropylene copolymer, and inorganic char-forming agent, and preferably an additional ingredient, hydrocarbon polymer, the cable passing the NFPA-255 burn test.

Plenum cable

The present invention relates to plenum cables jacketed with a composition comprising perfluoropolymer, inorganic char-forming agent, and hydrocarbon polymer, which passes the NFPA-255 burn test.

Filled perfluoropolymer composition

A plenum cable is provided which passes the category 5 requirements, including the UL 910 burn/smoke test, the cable containing at least four twisted pairs of insulated conductors, the insulation of one of the pairs of insulated conductors being foamed polyolefin which is free of flame retardant additive and the insulation of the other three twisted pairs of insulated conductors being fluoropolymer, the cable having a skew between twisted pairs of no greater than 30 nanoseconds.

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Glastonbury, CT, United States of America

George Martin Pruce