Method of preparing polymeric adhesive compositions utilizing the mechanism of interaction between the polymer components
US8821901B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 5, 2010 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Apr 12, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of selecting components for use in water-absorbing pressure-sensitive adhesive compositions is provided. The method involves selecting a film-forming polymer, a ladder-like non-covalent crosslinker that is capable of forming a ladder-like interpolymer complex with the film-forming polymer selected, and selecting a carcass-like non-covalent crosslinker that is capable of forming a carcass-like complex with at least one of the film-forming polymer selected or the ladder-like non-covalent crosslinker selected. The adhesive hydrogels provide high adhesion in a swollen state and bridge the gap between conventional pressure sensitive adhesives and bioadhesives. Methods for preparing and using the resulting compositions are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.