Preparation of ultra-high moleclar weight polyester

Details Preparation of ultra-high moleclar weight polyester Preparation of ultra-high moleclar weight polyester

1988-12-19

1990-04-17

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

264 41, 264236, 264321, 264347, 521 64, B29C 4300, C08J 928

Patent

active

049178458

ABSTRACT:
A process by which polyester resin having extremely high molecular weight can be prepared utilizing a very rapid solid state polymerization process comprises: (1) dissolving a polyester prepolymer in a suitable organic solvent; (2) recovering the polyester prepolymer from the organic solvent to produce a porous, fibrous mass of the polyester prepolymer; and (3) solid state polymerizing the porous, fibrous mass at an elevated temperature to produce the ultra-high molecular weight polyester resin.

REFERENCES:
patent: 3586647 (1971-06-01), Kremer
patent: 4416839 (1983-11-01), Matsumura et al.
patent: 4419308 (1983-12-01), Matsumura et al.
patent: 4517315 (1985-05-01), Matsumura et al.
patent: 4613664 (1986-09-01), Tate et al.
patent: 4742151 (1988-05-01), Tate et al.
patent: 4755587 (1988-07-01), Rinehart

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