Biodegradable polymeric materials based on polyether glycols, pr

Details Biodegradable polymeric materials based on polyether glycols, pr Biodegradable polymeric materials based on polyether glycols, pr

1988-06-02

1989-05-02

Welsh, Maurice J.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

424 78, 4284237, 428480, 525450, 604 19, C08G 1834

Patent

active

048269450

ABSTRACT:
The invention provides poly(.alpha.-hydroxy-carboxylic acid)/poly(oxyalkylene) polymers selected from multiblock polymers of the following repeating unit I ##STR1## wherein R is an alkylene group, R.sub.1 is hydrogen or methyl groups, m is a positive integer, and a and b are zero or positive integers, the case where a and b are simultaneously zero being excluded, and chain extended multiblock polymers which polymers are bioabsorbable and biodegradable, these polymeric materials being derived from reacting diols in the form of polyether glycols with .alpha.-hydroxy-carboxylic acids. The invention also provides methods for the preparation of such polymeric materials and bioabsorbable surgical articles made therefrom.

REFERENCES:
patent: 4355133 (1982-10-01), East et al.

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