Method for cationic conversion of nano-milled calcium carbonate
US7897251B2 · kind B2 · utility
1Cited by
3References
20Claims
0Family size
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Key dates
| Filing date | Nov 27, 2006 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Nov 20, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/258
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of forming a print medium comprising coating at least one side of a base substrate with anionically-charged nano-milled calcium carbonate that has been mixed with a cationic conversion agent to convert the coating to a cationically-charged coating, where a primary size of particles of the nano-milled calcium carbonate is 10-20 nm or smaller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.