Polyesters, method for producing same, and depot medicaments...

Details Polyesters, method for producing same, and depot medicaments... Polyesters, method for producing same, and depot medicaments...

2006-08-08

2006-08-08

Acquah, Samuel A. (Department: 1711)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Particulate form

C424S457000, C424S489000, C528S354000, C528S357000, C528S359000, C528S361000, C264S177100, C525S054100, C525S054200, C525S450000, C525S462000

Reexamination Certificate

active

07087247

ABSTRACT:
The invention relates to novel absorbable polyesters, produced by ring-opening polymerisation of hydroxycarboxylic acids in the presence of a polyol containing an electrolyte, in an extruder. In particular, the invention relates to novel polylactide glycolide polyesters which are essentially free of dextran sulphate and which are produced by ring-opening polymerisation of lactide and glycolide in the presence of dextran sulphate in the extruder; to the production of the same and to their use in depot medicaments.

REFERENCES:
patent: 3773919 (1973-11-01), Boswell et al.
patent: 4526938 (1985-07-01), Churchill et al.
patent: 5922338 (1999-07-01), Brich et al.
patent: 5929196 (1999-07-01), Kissel et al.
patent: 0 299 730 (1995-10-01), None
patent: 0 407 617 (1997-05-01), None
patent: 0 372 221 (2000-01-01), None
patent: 0 058 481 (2003-05-01), None
patent: WO 87/00011 (1987-01-01), None

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