Composites of inorganic microparticles having a phosphated surface and alkaline earth carbonate nanoparticles
US8808855B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2012 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | May 16, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to composites comprising inorganic micro pigments and/or fillers in the form of surface-phosphated microparticles, whose surface is at least partially coated with finely divided with alkaline earth carbonate nanoparticles by means of binders based on copolymers comprising as the monomers one or more dicarboxylic acids and one or more monomers from the group of diamines, triamines, dialkanolamines or trialkanolamines and epichlorohydrin, a method for producing such composites, aqueous slurries thereof and the use thereof in papermaking or in the field of production of paints and plastics as well as the use of the binders for the coating of microparticles with nano alkaline earth carbonate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.