Process to prepare a surface-reacted calcium carbonate implementing a weak acid, resulting products and uses thereof
US9593244B2 · kind B2 · utility
3Cited by
7References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2015 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Apr 14, 2035 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/69
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present application relates to a process for preparing a surface-reacted calcium carbonate in an aqueous environment. The process according to the present invention aims at avoiding the mandatory implementation of medium-strong to strong acids. Another aspect of the present invention is directed to an aqueous suspension of surface-reacted calcium carbonate which is obtainable by the inventive process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.