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:
Nov. 14, 1989
Filed:
Dec. 20, 1988
Applicant:
Inventors:
Bernd Wahle, Kaarst, DE;
Hermann Anzinger, Duesseldorf, DE;
Horst Ziche, Duesseldorf, DE;
Erhard Schinski, Erkrath, DE;
Assignee:
Henkel Kommanditgesellschaft auf Aktien, Duesseldorf, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528272 ; 528274 ; 528289 ; 5282955 ; 528310 ; 528317 ; 528332 ; 5283395 ; 106 85 ; 106100 ; 252-9 ; 252 50 ;
Abstract
Water-soluble polycondensates of dialkanolamides, fatty acid diethylaminopolyglycolates and fatty acid diethyl ammonium alkyl polyglycolates, which are first reacted with maleic anhydride in a molar ratio of 1:0.5 to 1:2, followed by reaction of substantially all the olefinic double bonds in the .alpha.-position to carboxyl groups with sulfites, are excellent plasticizers for hydraulic compositions.