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. 18, 2003
Filed:
Jul. 12, 2001
Applicant:
Inventors:
Frédéric Banse, Orsay, FR;
Riccardo F. Carina, Geneva, CH;
Michel G. J. Delroisse, Wirril, GB;
Jean-Jacques Girerd, Orsay, FR;
Ronald Hage, Vlaardingen, NL;
Jalila A. Simaan, Orsay, FR;
David Tetard, Wirril, GB;
Assignee:
Unilever Patent Holdings B.V., Vlaardingen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 7/32 ; C11D 7/54 ;
U.S. Cl.
CPC ...
C11D 7/32 ; C11D 7/54 ;
Abstract
The present invention relates to new macrocyclic bleach catalysts, to formulations comprising these catalysts, as well as bleaching processes which employ these catalysts. These catalysts exhibit unexpected hydrolytic stability, as well as stability against metal abstraction by metal abstracting agents.