Dissolution of tetrafluoroethylene polymers at superautogenous p

Details Dissolution of tetrafluoroethylene polymers at superautogenous p Dissolution of tetrafluoroethylene polymers at superautogenous p

1993-01-13

1994-11-15

Michl, Paul R.

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

Synthetic resins

Treating polymer containing material or treating a solid...

524462, 524463, 524465, 524466, 524473, C08K 520, C08F 600

Patent

active

053649290

ABSTRACT:
Disclosed herein is a process for dissolving high melting polymers containing tetrafluoroethylene units at pressures greater than autogenous pressure, using selected halogenated solvents that are often not solvents at autogenous pressure. Also disclosed are the solutions resulting from this process. The solutions are useful for preparing fibers and paper-like webs from these polymers.

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patent: 4931511 (1990-06-01), Kawachi et al.
patent: 5117272 (1992-05-01), Nomura et al.
patent: 5237049 (1993-08-01), Cavanaugh et al.
P. Smith and K. Gardner, Macromol., vol. 18, 1222-1228 (1985).

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