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:
Jun. 16, 1992
Filed:
Dec. 17, 1990
Applicant:
Inventors:
Bernard Dubreux, Franceheville le Bas, FR;
Yann Dugenet, Issy les Moulineaux, FR;
Assignee:
Atochem, Puteaux, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D06L / ; D06L / ; C11D / ;
U.S. Cl.
CPC ...
8111 ; 28107 ; 25218627 ; 25218628 ; 25218630 ; 25218637 ; 25218638 ; 25218641 ; 25218642 ;
Abstract
A process for bleaching domestic laundry in a household wash cycle, comprising prewashing the laundry in an alkaline bath with a pH value between 9 and 13 and at a temperature between about 40.degree. C. and 70.degree. C. in the presence of at least one peroxide bleaching agent and an uncomplexed barium, said barium being present in an amount between about 0.5.times.10.sup.-3 and 250.times.10.sup.-3 gram-atoms per kg of bath.