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:
Dec. 23, 1986
Filed:
Jan. 16, 1986
Paul L Baxter, Cheshire, GB;
Interox Chemicals Limited, London, GB;
Abstract
The bleaching performance of hydrogen peroxide or persalts developing it in situ is markedly lower at lower washing temperatures from ambient to 60.degree. C. than at hot washing temperatures of around 90.degree. C. or above. The present invention relates to compositions and processes employing a minor amount of mixed oxides of calcium, barium or strontium with manganese which activate hydrogen peroxide bleaching and washing of stains at lower wash temperatures in spite of the fact that the compounds are substantially water-insoluble. Suitable mixed oxides include those represented by formula M.sub.x MnO.sub.y in which M represents the alkaline earth metal, x ranges from 1 to 2 and y ranges from 3 to 4.