Copolyesters

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate

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Details

528176, 528193, 528194, 528195, C08G 6366

Patent

active

043980171

ABSTRACT:
Copolyesters of iso- or terephthalic acid, ethylene glycol, 1,3 bis(2-hydroxyethoxy) benzene, and possibly other diols, have lower 0.sub.2 and CO.sub.2 permeabilities because of the 1,3 bis(2-hydroxyethoxy) benzene reactant. Also disclosed are hollow containers, sheet and film made from such copolyesters.

REFERENCES:
patent: 2973339 (1961-02-01), Muenster et al.
patent: 3558557 (1971-01-01), Hrach et al.
patent: 4145517 (1979-03-01), Go
patent: 4188357 (1980-02-01), Go
patent: 4196275 (1980-04-01), Go
patent: 4307060 (1981-12-01), Go
patent: 4330661 (1982-05-01), Go

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