Aqueous pigment dispersions based on polyurethane dispersants having components to interact with cellulose
US9315690B2 · kind B2 · utility
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Key dates
| Filing date | Dec 27, 2012 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Dec 27, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D175/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Aqueous pigment dispersions based on polyurethane dispersants having components capable of interacting with cellulose are described. These components include a heterocycle pendent and or terminal to the polymer chain. The heterocycle is selected based on its Hansen solubility parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.