Precipitated calcium carbonate, a method for its manufacture and uses thereof
US9567234B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Mar 17, 2014 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Mar 17, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/265
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Dry precipitated calcium carbonate and a slurry of precipitated calcium carbonate (“PCC”) particles at least partially in the form elongated entities, especially of nanofibers or nanochain like agglomerates constituted by at least two interconnected primary particles, and preferably, with a content of scalenohedron particles, is provided having opacifying properties. The slurry may be produced on site of its use and, due to its high concentration of CaCO3, may be applied directly after its manufacture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.