Semi-interpenetrating network polymer backsheet bandage
US4832009A · kind A · utility
36Cited by
21References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1987 |
| Grant date | May 23, 1989 |
| Priority date | — |
| Expiry date | Dec 23, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24612
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved bandage comprises a backing sheet constructed of a semi-interpenetrating polymer network. Use of a semi-interpenetrating polymer network allows for an extremely desirable combination of gas permeability and hydrostatic resistance. This construction of backing sheet provides for suitable vapor permeability and sufficient water impermeability because the pores therein are of a colloidal size range and the surface tension thereof results in the backing material being hydrophobic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.