Writing substance for writing, drawing and/or painting tools
US8648128B2 · kind B2 · utility
2Cited by
0References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 8, 2010 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Sep 17, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D13/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A polymer-bound writing substance for writing, drawing and/or painting tools, particularly for pencils or colored pencils, including at least one polymer bonding agent, at least one wax, and at least one filler material, wherein the writing substance is further provided with 0.1 to 5 wt % of palm kernel oil, and/or coconut butter, and/or coconut oil, and/or oleic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.