Densified polyethersulfone

Details Densified polyethersulfone Densified polyethersulfone

1989-07-07

1990-07-31

Kight, III, John

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

Synthetic resins

Treating polymer containing material or treating a solid...

528490, 528496, 528497, 528498, 528503, 524319, 524323, 524326, 524366, 524376, 524379, 524380, 427 44, C08F 614

Patent

active

049451545

ABSTRACT:
Polyethersulfone is densified by preparation of a homogeneous paste with a semi-solvent, which may be drawn off by heating and vacuum, from an emulsion prepared from the paste. The resulting PES is substantially densified, with a reduced surface area. The densified PES can be added in significant amounts to thermosetting resin preparations, without a substantial increase in of viscosity.

REFERENCES:
patent: 3523906 (1970-08-01), Vrancken et al.
patent: 3875103 (1975-04-01), Leslie
patent: 4089843 (1978-05-01), Rausch, Jr.
patent: 4730018 (1988-03-01), Robeson

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