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:
Sep. 22, 1998
Filed:
Apr. 23, 1997
Oliver Eyrisch, D-65926 Frankfurt am Main, DE;
Gunther Hertel, D-65926 Frankfurt am Main, DE;
Other;
Abstract
The ester quat solutions described contain at least 70% by weight, based on the solution, of at least one ester quat compound of the formula below ##STR1## where RCO is an aliphatic acyl radical having 6 to 22 carbon atoms, R' is H or a C.sub.1 to C.sub.22 alkyl radical, R.sup.1 is a methyl or ethyl radical, R.sup.2 is a C.sub.1 to C.sub.8 alkyl radical, R.sup.3 is a C.sub.3 to C.sub.8 alkyl radical and X.sup.- is a halide, alkyl carbonate, alkyl phosphate or an alkyl sulfate, where alkyl is methyl or ethyl. They are prepared by quaternizing corresponding carboxylic acid alkanolamine esters with, preferably, methyl chloride or dimethyl sulfate. The aqueous solutions described are advantageously suitable for preparing laundry detergents and cosmetics.