Aqueous polymer dispersion and preparation method thereof
US11591432B2 · kind B2 · utility
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1References
18Claims
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Assignee
Inventors
Key dates
| Filing date | May 24, 2017 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | May 2, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D151/085
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to an aqueous polymer dispersion containing a multistage emulsion polymer particle. The multistage emulsion polymer particle contains a polysiloxane formed in the first stage; a transition layer formed in the second stage; and a polyacrylate formed in the third stage. The transition layer is made of silane coupling agents. The present invention also relates to a method of preparing the aqueous polymer dispersion and use of the aqueous polymer dispersion for preparing coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.