Block copolymer

Details Block copolymer Block copolymer

A - Human Necessities

61

K

A61K 9/70 (2006.01) A61K 31/56 (2006.01) A61K 47/30 (2006.01) A61K 47/32 (2006.01) C08F 265/06 (2006.01) C08F 293/00 (2006.01) C08L 51/00 (2006.01) C08L 53/00 (2006.01) C09J 151/00 (2006.01) C09J 153/00 (2006.01)

Patent

CA 2295976

The present invention provides a block copolymer capable of retaining drugs, there being chemical cross-linking between the soft segments, such block copolymers providing improved cohesion and drug storage capacity. Transdermal patches having such copolymers, especially as adhesives, are also provided.

La présente invention porte sur un copolymère bloc capable de retenir des médicaments, et se caractérisant par une réticulation chimique intervenant entre les segments mous. Ces copolymères blocs présentent une meilleure cohésion ainsi qu'une plus grande capacité de stockage de médicaments. L'invention porte également sur des timbres transdermiques comprenant ces copolymères utilisés notamment comme adhésifs.

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