The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 2024
Filed:
Nov. 02, 2020
Applicant:
Faber-castell Ag, Stein, DE;
Inventors:
Assignee:
Faber-Castell AG, Stein, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09D 13/00 (2006.01); B43K 19/18 (2006.01); C09D 7/61 (2018.01); C09D 7/63 (2018.01); C09D 191/06 (2006.01);
U.S. Cl.
CPC ...
C09D 13/00 (2013.01); B43K 19/18 (2013.01); C09D 7/61 (2018.01); C09D 7/63 (2018.01); C09D 191/06 (2013.01);
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.