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:
Feb. 05, 1991
Filed:
Mar. 13, 1989
Bitten Thorengaard, Charlottenlund, DK;
David W York, Waterloo, BE;
Danochemo A/S, Ballerup, DK;
The Proctor & Gamble Co., Cincinnati, OH (US);
Abstract
A photoactivator dye composition includes microcapsules of a solid dispersion of a water-soluble photoactivator dye in an encapsulating material that is quickly soluble in water. In a method of preparing such a photoactivator dye composition, the photoactivator dye is dissolved in an aqueous medium, the solution thus obtained is mixed with an aqueous solution of the encapsulating material, the mixture thus obtained is converted into droplets, and the moisture content of these droplets is reduced to form a solid solution. The photoactivator dye composition may advantageously be used in a detergent composition which additionally includes a surfactant and conventional detergent ingredients.