Use of polymeric catalyst in synthesis of sol-gel derived ceramic materials
US5316695A · kind A · utility
19Cited by
10References
14Claims
0Family size
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Key dates
| Filing date | Aug 10, 1989 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Aug 10, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2214/32
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymeric catalysts (e.g., polymeric acid catalysts such as poly(styrene)sulfonic acid) can be used in the synthesis of sol-gel derived ceramic materials from metal alkoxides, for example, organic/inorganic hybrid materials formed by reaction of a metal alkoxide and a reactive endcapped polymeric modifier. The use of a polymeric catalyst, rather than a conventional monomeric (inorganic or organic) acid catalyst, has a non-deleterious effect on the aging behavior and offers potential for control of rheological properties (spinnability, coatability, etc.) of the hybrid materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.