Biodegradable resin composition and preparation process thereof

Details Biodegradable resin composition and preparation process thereof Biodegradable resin composition and preparation process thereof

1999-08-06

2000-09-05

Acquah, Samuel A.

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

Synthetic resins

From carboxylic acid or derivative thereof

528354, 528355, 528357, 524784, C08G 6306, C08J 316

Patent

active

061144967

ABSTRACT:
A process for preparing a biodegradable resin composition, comprising: providing a reaction mixture comprising at least one hydroxycarboxylic acid and, as a polymerization catalyst, a monoorganotin derivative; heating and stirring the reaction mixture, wherein the heating and stirring step is carried out under a reduced pressure to cause condensation polymerization or carried out in an organic solvent to cause azeotropic dehydrating polymerization. Also disclosed in a biodegradable resin composition prepared by the process.

REFERENCES:
patent: 5053522 (1991-10-01), Muller
patent: 5142023 (1992-08-01), Gruber et al.
patent: 5981694 (1999-11-01), Gruber et al.

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