Random-block copolymer and monofilament thereof

Details Random-block copolymer and monofilament thereof Random-block copolymer and monofilament thereof

1998-08-19

2000-05-30

Short, Patricia A.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

606230, 528354, 525411, 525415, A61L 1712

Patent

active

06068920&

ABSTRACT:
A random-block copolymer having appropriate hydrolyzability, excellent flexibility and excellent mechanical strength, a monofilament thereof, and a process for producing the copolymer. The random-block copolymer comprises from 5 to 50 mol % of a random copolymer segment containing from 20 to 80 mol % of a lactide unit (A) and from 80 to 20 mol % of a caprolactone unit (B), and from 95 to 50 mol % of a block copolymer segment containing a glycolide unit (C).

REFERENCES:
patent: 3839297 (1974-10-01), Wasserman et al.
patent: 4052988 (1977-10-01), Doddi et al.
patent: 4243775 (1981-01-01), Rosensaft et al.
patent: 4605730 (1986-08-01), Shalaby et al.
patent: 5007923 (1991-04-01), Bezwada et al.
H.R. Kricheldorf et al, "Polylactones 3. Copolymerization of Glycolide with L,L-Lactide and Other Lactones", Makromolekulare Chemie, Macromolecular Chemistry and Physics, Supplements., vol. 12, 1985, pp. 25-38, XP002088422, Basel CH.

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