Polycondensates which contain tartaric acid derivatives, process

Details Polycondensates which contain tartaric acid derivatives, process Polycondensates which contain tartaric acid derivatives, process

1995-05-04

1997-03-25

Acquah, Samuel A.

Surgery

Truss

Pad

528272, 528288, 528289, 528290, 528291, 528294, 528295, 528298, 528302, 528306, 528308, 5283086, 1286531, 12866001, 12866002, 12866007, A61B 814

Patent

active

056134940

ABSTRACT:
Polycondensates which contain tartaric acid derivatives, processes for their preparation and use thereof.
The invention relates to polycondensates which consist of at least 95 mol % of recurring structural units of the formula I ##STR1## where R.sup.1 is a 2,3-O-alkylidenetartaric acid derivative (II) or furo[2,5] (V), alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl or a heterocycle, X is --O-- --NH-- or --S-- and R.sup.2 is 2,3-O-alkylidene-L-threitol (III) or a compound of the formula VI, alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl or a heterocycle, with the proviso that more than 5 mol % of the radicals R.sup.1 and/or R.sup.2 are present in the polycondensate of the formula I, where R.sup.1 is compound of the formula II or R.sup.2 is a compound of the formula III or R.sup.1 is a compound of the formula II and R.sup.2 is a compound of the formula III, or in which more than 5 mol % of the radicals R.sup.1 and R.sup.2 are present in the polycondensate of the formula I, where

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