Precipitated calcium carbonate pigment, especially for use in inkjet printing paper coatings
US8883098B2 · kind B2 · utility
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51Claims
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Key dates
| Filing date | Mar 29, 2006 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Jan 16, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Novel and innovative PCC pigments, having a reduced production cost, able to be used in a paper coating formulations to manufacture coated high-quality matt papers, in particular for inkjet applications. Process for the preparation of same, using a reduced flow rate of a carbon dioxide-containing gas in the PCC carbonation step, which produces stable, porous, agglomerates of PCC featuring unique properties and structure, this step being followed by an upconcentration step to increase the solids content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.