Fluororesin foam

Details Fluororesin foam Fluororesin foam

1993-02-22

1994-08-23

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 88, 521 94, 521145, C08J 914

Patent

active

053408438

ABSTRACT:
Perfluorotripentylamine, perfluoropolyether or another such high-boiling liquid is added as a foaming agent to a thermoplastic fluororesin such as a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin or a tetrafluoroethylene-hexafluoropropylene copolymer resin. Because the vapor pressure of said foaming agent in the molten fluororesin is lower than that of Freon or another such low-boiling foaming agent, the cells in the foam can be made fine and uniform in diameter.

REFERENCES:
patent: 5162384 (1992-11-01), Owens et al.
JP-A-59 033 707 (Sumitomo Elec. Ind. K. K.)-Abstract.

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