Mineral composition, especially for use in paper fillers and paper or plastic coatings
US9650258B2 · kind B2 · utility
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1References
15Claims
0Family size
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Key dates
| Filing date | Aug 19, 2015 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Aug 19, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/25
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A mineral composition comprising mineral particles, said mineral particles, when in a densely compacted bed form, having a volume defined median pore diameter from 0.01 to 0.04 micrometre, and having an intruded total specific void volume of 0.1-0.3 cm3/g. A specific advantage of this composition is that it as a component in a coating, allows the passage of ink solvent into the base paper while retaining the ink molecules on the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.