Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Matrices
Reexamination Certificate
2006-06-13
2006-06-13
Webman, Edward J. (Department: 1616)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Matrices
C424S487000, C424S488000
Reexamination Certificate
active
07060296
ABSTRACT:
The present invention relates to a biodegradable hydrogel comprising bonds which are hydrolyzable under physiological conditions. More particularly, the hydrogel consists of two interpenetrating polymer networks interconnected to one another through hydrolyzable spacers. In addition, the invention relates to a method for the preparation of a hydrogel, wherein macromolecules, e.g., polymers which contain bonds which are hydrolyzable under physiological conditions, are cross-linked in an aqueous solution.
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Hennink Wilhelmus Everhardus
van Dijk-Wolthuis Wendelmoed Nelletha Eleonora
Morrison & Foerster / LLP
Universiteit Utrecht
Webman Edward J.
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