Medical device articles formed from polymer-inorganic hybrids prepared by ester-alkoxy transesterification reaction during melt processing
US7365126B2 · kind B2 · utility
5Cited by
13References
25Claims
0Family size
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Key dates
| Filing date | Sep 16, 2005 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | May 19, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3188
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A shaped medical device article prepared from a polymer melt composition comprising a polymer ester, a transesterification catalyst, and a tri- or tetraalkoxy silane, by forming and solidifying said composition, and after solidification, subjecting the composition to reaction conditions to effect hydrolysis at least some alkoxysilyl groups remaining in the composition to form silanol groups and to effect condensation of said silanol groups to form a ceramic network. The polymer ester may be a vinyl ester homopolymer or copolymer, or a polymer having ester groups in the backbone thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.