Wax-based coloring crayon with a watercolor effect
US10774232B2 · kind B2 · utility
2Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2017 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | May 8, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L91/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A wax-based coloring crayon for a porous surface and for a non-porous surface includes at least one wax, an ethoxylated fatty alcohol, stearin, a filler, at least one pigment, and optionally an additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.