Method of converting fluorine-containing high polymer into lower

Details Method of converting fluorine-containing high polymer into lower Method of converting fluorine-containing high polymer into lower

1985-11-13

1987-12-08

Schofer, Joseph L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253264, 525374, C08F 822

Patent

active

047119497

ABSTRACT:
A fluorine-containing high polymer, e.g. polytetrafluoroethylene, can easily and efficiently be converted into a wax-like lower molecular weight polymer by contact reaction of the high polymer with a gas comprising a fluorinating agent, which is selected from molecular fluorine, nitrogen-fluorine compounds represented by NF.sub.3, halogen fluorides represented by ClF.sub.3 and fluorides of rare gas elements represented by XeF.sub.2, at a temperature in the range from 250.degree. to 550.degree. C.

REFERENCES:
patent: 3067262 (1962-12-01), Brady

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