Method for preparing a two-phase water-absorbent bioadhesive composition
US7138458B2 · kind B2 · utility
27Cited by
16References
7Claims
0Family size
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Key dates
| Filing date | Oct 12, 2004 |
| Grant date | Nov 21, 2006 |
| Priority date | — |
| Expiry date | Oct 12, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/20
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method is provided for preparing an adhesive composition that contains both a hydrophobic phase and a hydrophilic phase, wherein the hydrophobic phase is composed of a crosslinked hydrophobic polymer composition and the hydrophilic phase is a water-absorbent blend of a hydrophilic polymer and a complementary oligomer capable of crosslinking the hydrophilic polymer through hydrogen bonding, ionic bonding, and/or covalent bonding. The composition is useful as a bioadhesive, for affixing drug delivery systems, wound dressings, bandages, cushions, or the like to a body surface such as skin or mucosal tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.