Methods of bonding or modifying hydrogels using irradiation

Details Methods of bonding or modifying hydrogels using irradiation Methods of bonding or modifying hydrogels using irradiation

C - Chemistry, Metallurgy

08

J

C08J 5/12 (2006.01) A61L 27/16 (2006.01) A61L 27/40 (2006.01) A61L 27/52 (2006.01) B32B 37/00 (2006.01) C08J 3/28 (2006.01) C08L 29/04 (2006.01) C08L 101/14 (2006.01) C09J 5/00 (2006.01)

Patent

CA 2632120

This invention provides methods and processes to attach or bond hydrogels to suitable surfaces using irradiation techniques and also provides methods and processes to create crosslinked regions in hydrogel articles using these irradiation techniques. Specifically, lasers at wavelengths tuned to the irradiation absorption bands of hydroxyl groups, carboxylic acid groups or water may be used to attach or bond hydrogels to surfaces such as soft tissue and hydrogel surfaces or to crosslink regions in hydrogel articles.

La présente invention concerne des méthodes et des procédés destinés à attacher ou à lier des hydrogels à des surfaces appropriées en utilisant des techniques d~irradiation, ainsi que des méthodes et des procédés destinés à créer des zones réticulées dans des articles en hydrogel en utilisant ces techniques d~irradiation. Il est notamment possible d~utiliser des lasers à des longueurs d~onde réglées sur la bande d~absorption d~irradiation de groupements hydroxyle, de groupements acide carboxylique ou de l~eau afin d~attacher ou de lier des hydrogels à des surfaces telles que des tissus souples et des surfaces d~hydrogel ou de réticuler des zones dans des articles en hydrogel.

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