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:
Oct. 03, 2006
Filed:
Jul. 30, 2002
Applicants:
Sarah Dixon, Wirral, GB;
Peter Leslie Gratton, Swellendam, ZA;
John Oakes, Winsford, GB;
Inventors:
Assignee:
Carnegie Mellon University, Pittsburgh, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C11D 1/22 (2006.01); C11D 3/20 (2006.01); C11D 3/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a laundry bleaching composition comprising: a) a macrocycilc tetra amido N-donor metal-ligand complex (preferably, 5,6-benzo-3,8,11,13-tetraoxo-2,2,9,9,12,12-hexamethyl-1,4,7,10-tetraaza-cyclo-tridecane), and b) an alkyl benzene sulphonate surfactant, said composition being substantially devoid of any added peroxygen bleach or a peroxy-based or peroxy-generating bleach system.