Copolymer, composition and method for modifying rheology
US9012516B2 · kind B2 · utility
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13References
18Claims
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Key dates
| Filing date | Dec 21, 2011 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Mar 30, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/48
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A copolymer for modifying rheology is formed of monomer units consisting essentially of at least one first monomer unit comprising a polyhedral oligomeric silsesquioxane having an ethylenically unsaturated radical; at least one second monomer unit comprising an unsaturated oligo-poly(dimethyl siloxane)(meth)acrylate; and a sufficient amount of at least one unsaturated water-soluble monomer, such that the copolymer is soluble in water. A composition may comprise an electrolyte and the copolymer. The rheology of an environment comprising an electrolyte may be modified by adding the copolymer to the environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.