Method for producing a diffusion barrier and polymeric article having a diffusion barrier
US5958996A · kind A · utility
23Cited by
8References
8Claims
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Key dates
| Filing date | Feb 28, 1997 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Feb 28, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2363/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of forming a diffusion barrier on an article of a polymer blend of (i) a high surface energy polymer and (ii) a low surface energy polymer. Most commonly the low surface energy polymer is an organosilicon polymer, as a polysilane or a polysiloxane. The surface of the article is exposed to ozone and ultraviolet radiation to form a diffusion barrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.