Marking composition and method for marking dark substrates
US6210471A · kind A · utility
62Cited by
12References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 1, 2000 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Sep 1, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D13/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A marking composition suitable for marking colored substrates, especially dark substrates, is disclosed. The marking composition comprises a wax, a fatty acid, a reflecting filler, and a colorant selected from an oil soluble dye, an oil dispersable dye, or an oil dispersable pigment. A defoamer and a non-reflecting filler can be optionally included in the marking composition. For example, the marking composition can be provided in the form of crayons, colored pencils, and the like. A method of providing a mark on a colored substrate is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.