Title:
ORGANIC/INORGANIC COMPOSITES
Document Type and Number:
WIPO Patent Application WO1991018933
Kind Code:
A3
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.
Inventors:
LONG TIMOTHY E (US)
KELTS LARRY W (US)
KELTS LARRY W (US)
Application Number:
PCT/US1991/003725
Publication Date:
February 06, 1992
Filing Date:
May 28, 1991
Export Citation:
Assignee:
EASTMAN KODAK CO (US)
International Classes:
C08F8/42; (IPC1-7): C08F8/42
Foreign References:
| US4933391A | 1990-06-12 | |||
| EP0205096A2 | 1986-12-17 | |||
| US4770968A | 1988-09-13 | |||
| US3956419A | 1976-05-11 | |||
| EP0135923A2 | 1985-04-03 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 5, no. 180 (C-79)(852) 19 November 1981 & JP,A,56 104 906 ( ASAHI KASEI KOGYO K. K. ) 21 August 1981 see abstract
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