Pigment dispensing apparatus with non-settling universal pearlescent pigment dispersions
US5934513A · kind A · utility
7Cited by
11References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 11, 1998 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Nov 11, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D7/80
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous, non-settling, universal pearlescent, or nacreous pigment dispersion is provided for use in dispensing machines for the custom mixing in retail stores and trade sales of alkyd or solvent-thinned and water-based surface coatings. The non-settling pearlescent pigment dispersion employs a synthetic silicate, sodium lithium magnesium silicate, as the suspending agent. Also disclosed are methods for preparing the dispersion which incorporates one or more carriers, humectants, surfactants and other optional conventional additives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.