EP 0986596 A1 20000322 - BIODEGRADABLE POLYESTER URETHANES, METHOD FOR THE PRODUCTION AND USE THEREOF
Title (en)
BIODEGRADABLE POLYESTER URETHANES, METHOD FOR THE PRODUCTION AND USE THEREOF
Title (de)
BIOABBAUBARE POLYESTERURETHANE, VERFAHREN ZU IHRER HERSTELLUNG SOWIE IHRE VERWENDUNG
Title (fr)
POLYESTERURETHANES BIODEGRADABLES, LEUR PROCEDE DE PREPARATION AINSI QUE LEUR UTILISATION
Publication
Application
Priority
- DE 9801539 W 19980606
- DE 19723895 A 19970606
Abstract (en)
[origin: US6228969B1] The present invention concerns biodegradable linear polyester urethanes as well as biodegradable crosslinked polyester urethanes issuing from the linear polyester urethanes in such a way that they are crosslinked by diisocyanate bridges. By varying the degree of crosslinking it is possible to adjust the physical, chemical and biological properties in the crosslinked polyester urethane as defined by the invention in a targeted manner. In particular, it is possible to vary the rate of biodegradation of said crosslinked polyester urethane because the biological degradation takes place at a slower rate as the degree of crosslinking increases. Furthermore, the object of the invention is a method of producing the polyester urethanes as defined by the invention, as well as its application in the form of sheets or foils, shaped rubber articles, containers, packaging materials, in the field of galenic pharmacy; and in the form of adhesives and adhesive tapes and the like. Furthermore, the invention relates to polymer blends containing the polyester urethanes as defined by the invention.
IPC 1-7
IPC 8 full level
A61K 47/34 (2006.01); A61K 9/20 (2006.01); A61K 9/32 (2006.01); A61K 9/48 (2006.01); A61L 17/00 (2006.01); A61L 27/00 (2006.01); C08G 18/42 (2006.01); C08L 75/08 (2006.01); C08L 101/16 (2006.01); C09D 175/06 (2006.01); C09J 175/06 (2006.01)
CPC (source: EP KR US)
C08G 18/42 (2013.01 - KR); C08G 18/4277 (2013.01 - EP US); C09J 175/06 (2013.01 - EP US); C08G 2230/00 (2013.01 - EP US); Y10T 428/31551 (2015.04 - EP US); Y10T 428/31591 (2015.04 - EP US)
Citation (search report)
See references of WO 9855527A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 6228969 B1 20010508; AU 8529998 A 19981221; CA 2292564 A1 19981210; DE 19723895 A1 19981210; DE 19723895 C2 19990602; EP 0986596 A1 20000322; IL 133328 A0 20010430; JP 2002504939 A 20020212; KR 20010013503 A 20010226; WO 9855527 A1 19981210
DOCDB simple family (application)
US 44538099 A 19991206; AU 8529998 A 19980606; CA 2292564 A 19980606; DE 19723895 A 19970606; DE 9801539 W 19980606; EP 98936105 A 19980606; IL 13332898 A 19980606; JP 50130599 A 19980606; KR 19997011510 A 19991206