Treated inorganic pigments having reduced photoactivity and anti-microbial properties and their use in paper slurries
US9115470B2 · kind B2 · utility
8Cited by
18References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 20, 2012 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Aug 12, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/257
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The disclosure provides a paper slurry comprising a treated inorganic particle having reduced photoactivity and improved anti-microbial properties, wherein the treated inorganic pigment comprises: an inorganic core particle; a first treatment of a silicon compound, wherein the silicon compound is added in a single step; and a second treatment comprising a co-precipitated zinc oxide and alumina.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.