Coloring composition
US6160034A · kind A · utility
10Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1998 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Jun 2, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S260/38
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a low-bleed coloring composition incorporating a film-forming agent, an alkali-soluble resin, an aqueous carrier, and a colorant. The coloring composition can optionally include one or more of a humectant, a surfactant, a preservative, a drying agent, a pH regulant, a bittering agent or a fragrance. The present invention further provides a mark upon the surface of a substrate. The present invention furter provides a writing instrument comprising the coloring composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.