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:
Apr. 29, 2008
Filed:
Jan. 29, 2002
Hans-dieter Denninger, Nürnberg, DE;
Thomas Spengler, Kalchreuth, DE;
Ivan Horvat, Weissenburg, DE;
Klaus-dieter Schröder, Nürnberg, DE;
Hans-Dieter Denninger, Nürnberg, DE;
Thomas Spengler, Kalchreuth, DE;
Ivan Horvat, Weissenburg, DE;
Klaus-Dieter Schröder, Nürnberg, DE;
Schwan-STABILO Schwanhausser GmbH & Co. KG, Heroldsberg, DE;
Abstract
The invention relates to a marking liquid which contains a polymer dispersion with particles which are colored with marking agent, optionally further dyes and marking agents, one or more salts of a polyvalent, in particular bi- or trivalent cation, water and optionally moisture retaining agents and further usual additives, wherein the polymer forming the polymer particles is selected from the group of polyesters, polyester amides, polymers and copolymers based on acrylate or methacrylate with a proportion of free carboxylic acid groups of less than 10% by weight, melamine-formaldehyde-sulfonamide resins and mixtures thereof.