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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.:

US 4623476 B1

PDFFull Text
Date of Patent:
Nov. 18, 1986

Filed:

Jul. 02, 1985

Stable suspension of pigments in aqueous hypochlorite bleach compositions

Applicant:
Inventors:

Bala C Nayar, Cincinnati, OH (US);

Kathleen G Baier, Cincinnati, OH (US);

David A O'Brien, Cincinnati, OH (US);

Edward M Sawicki, Norwood, OH (US);

Assignee:

The Procter & Gamble Company, Cincinnati, OH (US);

Attorneys:

Williamson; Leonard

Hemingway; Ronald L.

Witte; Richard C.

Primary Examiner:

Paul Lieberman

Assistant Examiner:

Hoa Van Le

Int. Cl.
CPC ...
C11D / ; C11D / ;
U.S. Cl.
CPC ...
252 94 ; 252 95 ; 252 99 ; 252158 ; 252160 ; 252173 ; 25217425 ; 25218726 ; 252539 ; 252543 ; 252D / ;
Abstract

Aqueous hypochlorite laundry bleach compositions containing a suspension of a bleach stable (e.g., Ultramarine Blue) pigment, optical brightener 4,4'-bis(4-phenyl-2H-1,2,3-triazol-2-yl)-2,2'-stilbenedisulfonate, and a certain alkylaryl sulfonate surfactant. Preferred compositions contain a bleach stable organic material having a density of from 0.8 to 1.05 g/cc, which organic material is preferably a perfume, and a bleach stable buffering agent to maintain pH and physical stability.

Find Patent Forward Citations

Nayar, Bala. (1986). Stable suspension of pigments in aqueous hypochlorite bleach compositions (U.S. Patent No. 4623476). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4623476

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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