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:
May. 15, 2001
Filed:
Jul. 23, 1999
Applicant:
Inventors:
Alan David Willey, Cincinnati, OH (US);
Brian Jeffreys, Grimbergen, BE;
David William Ingram, Woluwe Saint-Lambergt, BE;
Assignee:
Procter & Gamble Co., Cincinnati, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C11D 3/395 ;
U.S. Cl.
CPC ...
C11D 3/395 ;
Abstract
The present invention relates to photochemical singlet oxygen generators useful as bleaching agents for laundry detergent compositions or in hard surface cleaning compositions and as anti-microbials. The photochemical singlet oxygen generators comprise a heavy atom unit-containing axial unit wherein the heavy atoms overlap with the &pgr; electron cloud of the photosensitizer unit and enhance the quantum efficiency of the transition of an electron from exited singlet state to triplet state.