Acrylic dispersants with fused aromatic imide anchor groups
US11649309B2 · kind B2 · utility
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2References
17Claims
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Key dates
| Filing date | Jun 26, 2020 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Jul 3, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D133/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymeric dispersants are disclosed that include an acrylic backbone at least one pendantly attached imide group, wherein the carbonyl of the imide are chemically bonded to a fused aromatic ring. The aromatic ring can be substituted with various electron withdrawing or releasing groups. Desirably dispersant also includes solvent-solubilising chains of polyether, polyester, polyacrylate, and or polyolefin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.