Stearic acid-treated calcium carbonate compositions having low or no detectable free stearic acid and related methods
US8580141B2 · kind B2 · utility
3Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2009 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Apr 21, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for treating calcium carbonate includes combining calcium carbonate with an amount of stearic acid and an amount of water to form a mixture, the amount of water being at least about 0.1% by weight relative to the total weight. The method further includes blending the mixture to form a stearic acid-treated calcium carbonate composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.