Cellular thermosetting fluorodiepoxide polymers

Details Cellular thermosetting fluorodiepoxide polymers Cellular thermosetting fluorodiepoxide polymers

1988-03-04

1989-06-27

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 82, 521 97, 521 98, 521145, 521189, C08G 5900

Patent

active

048431230

ABSTRACT:
Thermosetting fluoropolymer foams are made by mixing fluid form thermosetting fluoropolymer components having a substantial fluorine content, placing the mixture in a pressure tight chamber, filling the chamber with a gas, at relatively low pressure, that is unreactive with the fluoropolymer components, allowing the mixture to gel, removing the gelled fluoropolymer from the chamber and thereafter heating the fluoropolymer at a relatively low temperature to simultaneously cure and foam the fluoropolymer. The resulting fluoropolymer product is closed celled with the cells storing the gas employed for foaming. The fluoropolymer resins employed may be any thermosetting fluoropolymer including fluoroepoxies, fluoropolyurethanes and fluoroacrylates.

REFERENCES:
patent: 4731211 (1988-03-01), Lee

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