Polyurethane/polyurea compositions containing silicone for biosensor membranes
US5882494A · kind A · utility
776Cited by
14References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 28, 1995 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Aug 28, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2383/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A homogenous polymer composition useful as a membrane for biosensors is disclosed. The polymer composition comprises the reaction products of a diisocyanate, a hydrophilic diol or diamine, and a silicone material. An aliphatic diol or diamine may also be included. Membranes prepared from the composition allow for increasing oxygen permeability and decreased analyte permeability (e.g. glucose). They also possess the necessary physical properties of an outer polymeric biosensor membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.