Manufacture of polylactide stereocomplexes

Details Manufacture of polylactide stereocomplexes Manufacture of polylactide stereocomplexes

1992-12-11

1994-05-31

Buttner, David

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525413, 525415, C08L 6704

Patent

active

053170644

ABSTRACT:
Polylactide stereocomplex is formed by mixing poly-D-lactide and L-lactide or poly-L-lactide and D-lactide and a lactide polymerization catalyst, and heating to polymerize the monomeric lactide, preferably under pressure. The parts are useful in medical devices such as bone screws.

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patent: 4844854 (1989-07-01), Kaplan
patent: 4902515 (1990-02-01), Loomis et al.
patent: 4916193 (1990-04-01), Tang
patent: 4981696 (1991-01-01), Loomis et al.
patent: 5028667 (1991-07-01), McLain
Yui, "Die Makromolekulare Chemie" 191(3) Mar. 1990, pp. 481-488.
T. Tsuji, S. H. Hyon, and Y. Ikada, Macromolecules 24, 5651-5656, 1991.

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