High molecular weight polyesters, preparation and use thereof

Details High molecular weight polyesters, preparation and use thereof High molecular weight polyesters, preparation and use thereof

1985-09-03

1987-03-31

Phynes, Lucille M.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528179, 528180, 528181, 528182, 528193, 528194, C08G 6360

Patent

active

046544119

ABSTRACT:
Polyesters having at least 90%, by weight, of recurrent structural units corresponding to the following formula: ##STR1## and characterised by a relative viscosity.eta..sub.rel of from 1.6 to 4.5 (determined at 25.degree. C. in CH.sub.2 Cl.sub.2, c=5 g/l) are suitable for the production of films having highly advantageous performance characteristics, in particular high heat resistance.

REFERENCES:
patent: 3234167 (1966-02-01), Sweeny
patent: 3246067 (1966-04-01), Boyer
patent: 4067850 (1978-01-01), Kohler et al.
patent: 4225698 (1980-09-01), Medem et al.
patent: 4229565 (1980-10-01), Gardner et al.
patent: 4438241 (1984-03-01), Mark et al.
patent: 4477647 (1984-10-01), Mark et al.
patent: 4482694 (1984-11-01), Freitag et al.

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