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:
Apr. 09, 2002
Filed:
May. 01, 2000
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Abstract
Described are diester amine adducts of formula (1) wherein R , R , R , R are each independently of one another C -C alkyl; C -C alkenyl; or C -C cycloalkyl; X and X are each independently of the other hydrogen, C -C alkyl; C -C hydroxyalkyl or C -C hydroxyhaloalkyl; Y is a radical of formula (1b); A is C -C alkylene or 2-hydroxy-n-propylene; X is hydrogen; C -C alkyl, C -C hydroxyalkyl; or C -C hydroxyhaloalkyl; (A) is an asymmetrical carbon atom in the R- or S-configuration, wherein, if C =R, C =R; C =S, C =S; and C =R; C =S; m is 1 or 2; and n is an integer from 1 to 4; p is 0 or 1; which adducts may be in the form of free bases or ammonium salts. Said compounds are precursors of compounds having good complex-forming properties and are thus able to effectively bind heavy metal ions such as iron, zinc, magnesium or copper ions and to prevent metal-initiated oxidations after enzymatic or chemical cleavage. They have a plurality of uses, for example in foods, beverages, derusting and decalcification baths, as additives in liquids for cooling-water circuits, in personal-care products, as bleaching stabilizers, in cleaning agents and detergents, in the textile industry and also as soft handle agents for organic fibre materials.