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:
Jul. 03, 1984
Filed:
Jun. 08, 1981
Barry A Sudbury, Pleasanton, CA (US);
Alfred G Zielske, Pleasanton, CA (US);
The Clorox Company, Oakland, CA (US);
Abstract
This invention relates to dyes which are resistant to hypochlorite attack, exemplary of which are anthraquinone dyes of the general formula: ##STR1## wherein X.sub.1, X.sub.2, X.sub.3, X.sub.4, R.sub.5, R.sub.6, R.sub.7, and R.sub.8 are defined within the specification. The invention also relates to hydrophobic latex particles, such as polyethylene, in which such dyes are deposited. A combined liquid bleaching and dyeing composition is disclosed which includes the aforementioned particles in hypochlorite liquid bleach at a pH above about 11. This composition has sufficiently long shelf life for the purposes of ordinary commerce.