Process for depolymerizing hydroxycarboxylic polymers

Details Process for depolymerizing hydroxycarboxylic polymers Process for depolymerizing hydroxycarboxylic polymers

1978-01-09

1979-03-20

Levin, Stanford M.

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

Synthetic resins

Treating polymer containing material or treating a solid...

526 16, 526317, 528483, 528503, C08F 850

Patent

active

041455266

ABSTRACT:
Process for obtaining hydroxycarboxylic polymers of reduced molecular weight from corresponding polymers of higher molecular weight, comprising heating the polymer of higher molecular weight in a gaseous medium to a temperature of between 60.degree. and 240.degree. C.

REFERENCES:
patent: 2372001 (1945-03-01), Joyce
patent: 3311583 (1967-03-01), Bearden
patent: 3632798 (1972-01-01), Morita et al.

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