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:
Aug. 10, 1993
Filed:
May. 23, 1991
Gerhard Debus, Assmannshausen, DE;
Heinz-Josef Mann, Saulheim, DE;
Martin Ludke, Oestrich-Winkel, DE;
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
Thickening systems for water-based building material mixes, composed of 0.01 to 2% by weight of a water-soluble cellulose ether, 0.01 to 2% by weight of polyvinyl alcohol and 0.005 to 1% by weight of boric acid or salts thereof, the respective percentages being based on the dry substance content of the building material mix. Due to the addition of boric acid or borax, these thickening systems have an improved thickening action compared with thickening mixtures composed only of cellulose ether and polyvinyl alcohol.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile