Composite pressure sensitive hydrophilic adhesive and method of preparing the same
US5807917A · kind A · utility
5Cited by
2References
5Claims
0Family size
Inventors
Key dates
| Filing date | Nov 8, 1996 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Nov 8, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S424/07
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composite pressure-sensitive hydrophilic adhesive such as for holding a medical or cosmetic treatment against the skin of a person is composed of a crosslinked polymer and a non-crosslinked polymer and a polar water-miscible solvent having a boiling point above 100.degree. C. at atmospheric pressure. The adhesive has little or no cold flow and can be applied in sheets. An alternate combination of polymers and a method of making both compositions is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.