Expanded color space architectural paint and stain tinting system
US9346028B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2015 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Apr 2, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2101/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
White-pigmented and unpigmented base paints and stains are custom-tinted using an automated colorant dispenser having a minimum fluid dispensing quantity less than 0.01 fluid ounce (<0.3 cm3) and a set of colorants including a green-hued colorant having a color strength greater than that of a comparison colorant containing 12 wt. % PG7 pigment, a blue-hued colorant having a color strength greater than that of a comparison colorant containing 12 wt. % PB15:2 pigment, a red-hued colorant having a color strength greater than that of a comparison colorant containing 17 wt. % PR209 pigment and a magenta-hued colorant having a color strength greater than that of a comparison magenta-hued colorant containing 7 wt. % PR122 pigment. Light pastel tints in small containers and strong colors in large containers may be prepared without requiring the use of additional colorants having the same general hue and lower color strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.