Dissociating ionically cross-linked siloxane polymers
US4493926A · kind A · utility
23Cited by
1References
11Claims
0Family size
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Key dates
| Filing date | Jan 4, 1984 |
| Grant date | Jan 15, 1985 |
| Priority date | — |
| Expiry date | Jan 4, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L83/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method is provided wherein ionically cross-linked zwitterionic siloxane polymers are solubilized by the addition of a weak base to a combination of the zwitterionic siloxane polymers and an organic solvent. Where a weak base having a high vapor pressure is utilized, the zwitterionic siloxane polymers can be recured by evaporation of the organic solvent and base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.