Perfluorinated ether organo substituted cyclosiloxanes and copolymers prepared from these cyclosiloxanes
US5892086A · kind A · utility
1Cited by
17References
28Claims
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Key dates
| Filing date | May 29, 1998 |
| Grant date | Apr 6, 1999 |
| Priority date | — |
| Expiry date | May 29, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/24
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions of unstrained perfluorinated ether organo substituted cyclosiloxanes of formula (I): ##STR1## wherein m is an integer of 1 to 12; n is an integer of 1 to 4; X is a divalent radical which may include O, NH, N(CH.sub.3), OC(O), NHC(O), N(CH.sub.3)C(O)CH.sub.2 ; and R.sup.F is a perfluorinated ether radical of the general formula (II): ##STR2## wherein p is an integer of 1 to 10 are described, along with copolymer compositions prepared from these cyclopolysiloxanes and from mixtures of these cyclosiloxanes and other siloxanes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.