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:
Oct. 22, 2019
Filed:
Sep. 06, 2017
Applicant:
Faber-castell Ag, Stein, DE;
Inventors:
Assignee:
Faber-Castell AG, Stein, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09D 135/02 (2006.01); C09D 7/20 (2018.01); C09D 7/63 (2018.01); B43K 8/02 (2006.01); B43K 8/03 (2006.01); C09D 193/04 (2006.01); C09D 11/00 (2014.01); C09D 11/10 (2014.01); C09D 11/16 (2014.01);
U.S. Cl.
CPC ...
C09D 135/02 (2013.01); B43K 8/02 (2013.01); B43K 8/026 (2013.01); B43K 8/03 (2013.01); C09D 7/20 (2018.01); C09D 7/63 (2018.01); C09D 11/00 (2013.01); C09D 11/10 (2013.01); C09D 11/16 (2013.01); C09D 193/04 (2013.01);
Abstract
A writing, marking and/or drawing liquid for writing implements, especially for capillary pens, which has a viscosity of less than 50 mPas (Brookfield, 20° C., CPE-40 plate-cone), contains a resin mixture dissolved in a solvent matrix having at least one solvent. Wherein the resin mixture contains a first resin in the form of a modified resin ester and/or a dissolved polyester resin and a second resin in the form of a maleate resin and/or a rosin, especially a phenol-modified rosin. Additives are present in the form of at least one fluorosurfactant as wetter and at least one polyethersiloxane copolymer as glidant.