Thermally stable (imide/amide)/(urea/siloxane) block copolymers
US4950728A · kind A · utility
3Cited by
5References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 6, 1988 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | Jun 6, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Thermally stable block copolymers, well adapted for the production of coating films, include recurring imide/amide blocks of the formula: ##STR1## and recurring urea/siloxane blocks of the formula: EQU --NH--CO--NH--A--NH--CO--NH-- (II) wherein A is a divalent diorganosiloxane radical of the formula ##STR2##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.