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. 10, 1993
Filed:
Apr. 20, 1992
Kathleen B Hunter, Cincinnati, OH (US);
Edward E Getty, Cincinnati, OH (US);
Josephine L Kong-Chan, Cincinnati, OH (US);
Other;
Abstract
An aqueous liquid bleach composition containing solid, water-insoluble organic peroxyacid, bleach-stable, stilbene fluorescent whitening agent, and polyvinyl pyrrolidone or polyvinyl alcohol is provided. A preferred aqueous liquid bleach composition comprising, by weight of the composition, from 5 to 15 weight % of mononylamido peroxyadipic acid; from about 0.4 to about 10 weight % of polyvinyl pyrrolidone with a molecular weight between about 5,000 and about 100,000; and from about 0.05 to about 2 weight % of a fluorescent whitening agent of the formula: ##STR1## Preferably, the ratio of polyvinyl pyrrolidone to fluorescent whitening agent is between about 20:1 and about 1:1 and the composition has a pH at 20.degree. C. from about 1 to about 6.5.