Polymerization of lactide

Details Polymerization of lactide Polymerization of lactide

1992-03-13

1993-08-10

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

525415, 528357, C08G 6384, C08G 6391

Patent

active

052350312

ABSTRACT:
A process for polymerizing lactide and up to 20 mole percent of another lactone in the absence of solvent at 100.degree. to 220.degree. C. using an yttrium or lanthanide series rare earth metal catalyst.

REFERENCES:
patent: 3169945 (1965-02-01), Hostettler et al.
patent: 4289873 (1981-09-01), Kubo et al.
patent: 4357462 (1982-11-01), Kubo et al.
patent: 5028667 (1991-07-01), McLain et al.
Polymer Preprints, Japan (English Edition) vol. 40, 5-11, pp. E830 and E831.
Kidorui 1991, 18, 152-153 (Abstract).

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