Coating composition comprising submicron calcium carbonate and use thereof
US10557013B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Feb 27, 2014 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Feb 27, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/258
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Coating composition providing gloss and opacity on application, having a pigment volume concentration of from 5% up to the critical pigment volume concentration and characterised in that comprises at least one ground natural calcium carbonate having a volume median diameter of between 0.05 and 0.3 μm, and at least one pigment having a refractive index of greater than or equal to 2.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.