Preparation of linear high molecular weight saturated polyesters

Details Preparation of linear high molecular weight saturated polyesters Preparation of linear high molecular weight saturated polyesters

1979-02-28

1981-02-03

Phynes, Lucille M.

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

Synthetic resins

From carboxylic acid or derivative thereof

528309, 528495, 528496, 528501, C08G 6322

Patent

active

042489962

ABSTRACT:
A process for the preparation of high molecular weight linear saturated polyesters derived from dicarboxylic acids or their ester-forming derivatives and aliphatic and/or cycloaliphatic diols, comprising the condensation of polyester precondensates having a relative viscosity of from 1.05 to 1.15 at from 220.degree. to 280.degree. C. under reduced pressure, wherein

REFERENCES:
patent: 4138544 (1979-02-01), Janssen et al.

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