Sterilized polyetherimide/polyphenylene ether sulfone articles
US8501291B2 · kind B2 · utility
2Cited by
26References
31Claims
0Family size
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Key dates
| Filing date | Jun 1, 2012 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Jun 1, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24479
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A sterilized article comprising a hydrogen peroxide plasma or hydrogen peroxide vapor sterilized polymer composition, the polymer composition comprising from 20 to 80 weight % of a polyphenylene ether sulfone; and from 20 to 80 weight % of a polyetherimide. When sterilized with a hydrogen peroxide plasma, or hydrogen peroxide vapor, the articles have surprisingly improved resistance to changes in color and clarity as well as resistance to loss of mechanical properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.