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:
Dec. 28, 2021
Filed:
Aug. 11, 2020
Weylchem Performance Products Gmbh, Wiesbaden, DE;
Roman Morschhäuser, Mainz, DE;
Said Kchirid, Heigenbrücken, DE;
Judith Preuschen, Sörgenloch, DE;
Bo Kuhse, Wiesbaden, DE;
WEYLCHEM PERFORMANCE PRODUCTS, GMBH, Wiesbaden, DE;
Abstract
Disclosed are compounds of formula (I)(ROOC)—R(OH)—COO—(CH—O)—OC—R(OH)—(COOR)  (I)wherein Rand Rindependently of one another are hydrogen, a metal cation, an ammonium cation, C-C-alkyl, cycloalkyl with three to nine ring carbon atoms, aryl with five to ten ring carbon atoms, aryl that is substituted with one or two alkyl groups, aryl that is connected via an alkylene group with the carboxyl group, —(CH—O)—H or —O—R(COOR1),Rand Rindependently of one another are aliphatic hydrocarbon residues with one to eight carbon atoms,a and b independently of one another are integers from 1 to 4,c is an integer from 0 to 4,d is an integer from 1 to 4,n is 2, 3 or 4, andm is 1, 2, 3 or 4, with the proviso thatRand Rmay be different within a molecule within the given definitions. These compounds are characterized by a very good complexation power for metal cations and can be used in detergents and cleaning agents, in oil extraction and for water softening.