Low viscosity suspending vinyl copolymers
US9090724B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Sep 24, 2012 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Sep 24, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2438/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A rheology modifier copolymer of formula (I), wherein A is a macromonomer; B is an acrylic or methacrylic acid or salt thereof; C is a polyacidic vinyl monomer selected from maleic, fumaric, itaconic, citraconic and acids combinations thereof and anhydrides and salts thereof; and D optionally when present is a crosslinking monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.