Organic/inorganic composites
US5096942A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 1990 |
| Grant date | Mar 17, 1992 |
| Priority date | — |
| Expiry date | May 29, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymers such as phenyltrimethoxysilylterminated polystyrene are prehydrolyzed and then condensed with a metal alkoxide using acid catalyzed sol-gel reactions. The product is an organic/inorganic composite in which a metal polycondensate core is covalently bonded to a plurality of organic arms. The core has more metal atoms than heretofore obtainable. The process of this invention provides a means for introducing an inorganic phase into an organic polymer and maintaining solubility of the resulting composite in organic solvents. The products of this invention have a larger organic phase than products discussed in the literature. They also have residual chemical reactivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.