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US 12,006,443 B2Granted
Core or crayon for writing and/or coloring
AssigneeFaber-Castell AG
InventorsVladimir Barroso, Eder D. J. Merola, Gerhard Lugert
Life of this patent
Estimating the term…
Abstract
A core or crayon for writing and/or coloring has 15 wt % to 30 wt % of a core base material based on fat and on wax, and 40 wt % to 80 wt % of at least one filler, and 0.1 wt % to 30 wt % of at least one colorant. The core base material includes, based on the total mass of the core, 0.5 wt % to 10 wt % of aluminum distearate, 5 wt % to 20 wt % of oxidized polyethylene wax, and 5 wt %-22 wt % of at least one paraffin wax.
Claims16
A core or crayon for writing and/or coloring, comprising:
- 15 wt % to 30 wt % of a core base material based on fat and on wax, the core base material having, based on a total mass of the core, 0.5 wt % to 10 wt % of aluminum distearate, 5 wt % to 20 wt % of oxidized polyethylene wax, and 5 wt %-22 wt % of at least one paraffin wax;
- 40 wt % to 80 wt % of at least one filler;
- and
- 0.1 wt % to 30 wt % of at least one colorant.
1 more element
Dependencies are inferred from the claim text.