Trilayer coated pharmaceutical packaging
US9554968B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2014 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Jun 9, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2800/042
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An article is described including an article surface and a coating set comprising a tie coating or layer of SiOxCy or Si(NH)xCy applied to the article surface, a barrier coating or layer of SiOx, and a pH protective layer of SiOxCy or Si(NH)xCy. The respective coatings or layers can be applied by chemical vapor deposition of a polysiloxane or polysilazane precursor in the presence of oxygen. Examples of such an article are a prefilled thermoplastic syringe or thermoplastic pharmaceutical vial with a coated interior portion containing a pharmaceutical preparation or other fluid with a pH of 4 to 8, alternatively 5 to 9. The barrier coating or layer prevents oxygen from penetrating into the thermoplastic syringe or vial, and the tie coating or layer and pH protective coating or layer together protect the barrier layer from the contents of the syringe or vial.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.