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. 07, 1980
Filed:
Nov. 20, 1978
Heinrich Linden, Dusseldorf, DE;
Jochen Heidrich, Dusseldorf-Benrath, DE;
Bernd Wegemund, Haan, DE;
Hans Bornmann, Dusseldorf, DE;
Henkel Kommanditgesellschaft auf Aktien, Dusseldorf-Holthausen, DE;
Abstract
Dispersion adjuvants are described comprising .beta.-hydroxyalkyl esters of the formula ##STR1## wherein the R.sub.1 and R.sub.2 represent hydrogen or alkyl with 1 to 21 carbon atoms, in which at least one of R.sub.1 and R.sub.2 is alkyl and the sum of the carbon atoms in R.sub.1 and R.sub.2 ranges from 6 to 22, and wherein R.sub.3 represents alkyl with 1 to 8 carbon atoms, optionally substituted with 1 to 2 hydroxyl groups and/or interrupted by 1 to 2 ether bridges, as well as the adducts of compounds of Formula I with alkylene oxides, preferably ethylene oxide and/or propylene oxide. The dispersion adjuvants are coated on pigment and filler materials for paints and lacquers. The coating is applied before or during the dispersion of the materials in the paint or lacquer media or vehicle.