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:
Aug. 28, 1990
Filed:
Apr. 11, 1989
Randall J Cramer, Hayward, CA (US);
The Clorox Company, Oakland, CA (US);
Abstract
Liquid bleaching and brightening compositions are provided in which a polymeric matrix stably suspends a fluorescent whitening agent, and, optionally, pigment particles. A particularly preferred composition includes an aqueous solution having sodium hypochlorite in an amount of from about 3.5 wt. % to about 6.2 wt. %, an anionic or nonionic surfactant in an amount of from about 0.03 wt. % to about 0.3 wt. %, a polymer in an amount of from about 0.3 wt. % to about 2.0 wt. %, a fluorescent whitening agent in an amount of from about 0.01 wt. % to about 0.2 wt. %, and, if desired, ultramarine blue particles in an amount of from about 0.01 wt. % to 0.2 wt. %, the fluorescent whitening agent and ultramarine blue particles being stably suspended and dispersed in the aqueous solution via the polymer.