Processes for the preparation of rheology modifiers
US9260559B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Mar 4, 2013 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | May 12, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D175/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Methods for preparing hydrophobically modified alkylene oxide urethane branched polymers. In an embodiment, the order of addition of reactants affects the properties of the resultant product urethane. In an embodiment, the time at which one or more reactants are added affects the properties of the resultant product urethane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.