Charge-modified particles and methods of making the same
US11820844B2 · kind B2 · utility
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25Claims
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Key dates
| Filing date | Mar 19, 2019 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Jan 19, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/385
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A charge-modified particle comprising the inorganic core and a shell surrounding the inorganic core, wherein the shell comprises a copolymer comprising monomeric units corresponding to free-radically polymerizable monomers, and wherein at least one of the monomeric units comprises a substituted benzotriazolylphenolate salt. Methods of making the charge-modified particle by admicellar polymerization are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.