Polymer and its production

Details Polymer and its production Polymer and its production

1985-07-03

1987-07-28

Nielsen, Earl

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

Synthetic resins

From carboxylic acid or derivative thereof

528354, C08G 6304

Patent

active

046832882

ABSTRACT:
A polymer or copolymer of lactic acid and/or glycolic acid which has a weight-average molecular weight of not less than about 5,000 and a dispersity of about 1.5 to 2 is advantageously used as a biodegradable polymer or copolymer for medical preparation.

REFERENCES:
patent: 2362511 (1939-11-01), Teeters et al.
patent: 2703316 (1955-03-01), Schneider
patent: 3468853 (1969-09-01), Schmitt et al.
patent: 3531561 (1970-09-01), Trehu
patent: 3636956 (1972-01-01), Schneider
patent: 3839297 (1974-10-01), Wasserman et al.
patent: 4137921 (1979-02-01), Okuzumi et al.
patent: 4273920 (1981-06-01), Nevin
Asahara, et al., "Production of Polyglycolide.Lactide and Properties of the Product", J. Chem. Soc. Japan, 65 (1965), No. 5, pp. 983-986.

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