Production of thermally stabilized polyester

Details Production of thermally stabilized polyester Production of thermally stabilized polyester

1977-07-27

1978-09-19

Phynes, Lucille M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 22EP, 264210F, 264211, 528273, C08K 504, C08G 6370, C08G 6376

Patent

active

041153502

ABSTRACT:
High molecular weight linear condensation polyesters are stabilized against deterioration by heat by reacting the polyester in molten form with an epoxy compound having 5 to 25 carbon atoms in the molecule and selected from the group consisting of ##STR1## where R represents the radical remaining after removal of the carboxyl group from a monocarboxylic acid, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent hydrogen or hydrocarbon radicals, and n is an integer that can be 0 to 3.

REFERENCES:
patent: 3650997 (1972-03-01), Weisfeld et al.
patent: 3673144 (1972-06-01), Weissermel et al.
patent: 3886104 (1975-05-01), Borman et al.
patent: 3985705 (1976-10-01), Georgoudis
patent: 4016142 (1977-04-01), Alexander et al.

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