04882168 is referenced by 240 patents and cites 4 patents.

The invention is a slow release drug delivery system comprising a drug and an ABA or AB block copolymer wherein one block (B) is a poly(alkylene oxide) and the other blocks (A) are comprised of degradable random copolymers of (1) the cyclic ester of an alpha-hydroxy acid and (2) a second cyclic ester monomer is with the proviso that the second cyclic ester monomer not the same as the first cyclic ester.

Title
Polyesters containing alkylene oxide blocks as drug delivery systems
Application Number
6/903801
Publication Number
4882168
Application Date
September 5, 1986
Publication Date
November 21, 1989
Inventor
Louis Rosati
Norwalk
CT, US
Donald J Casey
Ridgefield
CT, US
Agent
Alice C Brennan
Assignee
American Cyanamid Company
CT, US
IPC
C08G 63/08
A61K 31/74
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