Aqueous dispersion of polymer particles, microspheres, and polysiloxane particles
US11981830B2 · kind B2 · utility
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5References
10Claims
0Family size
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Key dates
| Filing date | Oct 22, 2019 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Jul 7, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a paint composition comprising an aqueous dispersion of a) polymer particles having an average particle size in the range of from 80 nm to 500 nm; b) polymeric organic crosslinked microspheres having a particle size in the range of from 1 μm to 20 μm; c) polysiloxane particles having a particle size in the range of from 1 μm to 30 μm; d) a rheology modifier; e) an opacifying white pigment having a refractive index of >1.9; and f) less than 10 weight percent of a low Tg polyurethane. The composition of the present invention gives coatings with excellent burnish resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.