Passivation, pH protective or lubricity coating for pharmaceutical package, coating process and apparatus
US10189603B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2012 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Apr 17, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3131
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for providing a passivation layer or pH protective coating on a substrate surface by PECVD is provided, the method comprising generating a plasma from a gaseous reactant comprising polymerizing gases. The lubricity, passivation, pH protective, hydrophobicity, and/or barrier properties of the passivation layer or pH protective coating are set by setting the ratio of the O2 to the organosilicon precursor in the precursor feed, and/or by setting the electric power used for generating the plasma. In particular, a passivation layer or pH protective coating made by the method is provided. Pharmaceutical packages coated by the method and the use of such packages protecting a composition contained in the vessel against mechanical and/or chemical effects of the surface of the package without a passivation layer or pH protective coating material are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.