Polymer films for medical device coating
US8900651B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2008 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | May 8, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2401/90
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for depositing a coating comprising a polymer and impermeable dispersed solid on a substrate, comprising the following steps: discharging at least one impermeable dispersed solid in dry powder form through a first orifice; discharging at least one polymer in dry powder form through a second orifice; depositing the polymer and/or impermeable dispersed solid particles onto said substrate, wherein an electrical potential is maintained between the substrate and the impermeable dispersed solid and/or polymer particles, thereby forming said coating; and sintering said coating under conditions that do not disrupt the activity and/or function of the substrate. A similar method is provided for depositing a coating comprising a hydrophobic polymer and a water-vapor-trapping material on a substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.