Dispersion of adsorbing emulsion polymer particles
US9303161B2 · kind B2 · utility
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5References
5Claims
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Assignee
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Key dates
| Filing date | Jan 30, 2013 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Jan 30, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2201/54
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a process comprising contacting a stable aqueous dispersion of pre-formed polymer particles with a monomer emulsion under emulsion polymerization conditions to form a stable aqueous dispersion of pre-formed particles protuberating from polymer particles arising from the polymerization of the monomer emulsion; these multistage polymer particles show exceptional compatibility with pigment particles. In another aspect, the present invention is a composition relating to the pre-formed particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.