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:
Oct. 04, 1988
Filed:
Jun. 12, 1986
Applicant:
Inventors:
Yann Dugenet, Issy-les-Moulineaux, FR;
Gisele Landan, Asnieres-sur-Seine, FR;
Assignee:
Atochem, , FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D06L / ; D06L / ;
U.S. Cl.
CPC ...
8111 ; 8101 ; 8137 ; 252 95 ; 252 99 ; 25218628 ; 134 26 ;
Abstract
A process for bleaching household laundry in a wash cycle, comprising a first stage in said cycle in which the laundry is washed in the presence of a detergent composition free of any peroxide-type bleaching agent at a temperature between about 40.degree. to 60.degree. C. and a pH between about 8 and 12, rinsing said laundry, and subjecting said laundry to a second stage in said cycle in which said rinsed laundry is washed in the absence of any detergent and in the presence of at least one peroxide-type bleaching agent and an activator at a temperature between about 40.degree. to 60.degree. C. and a pH between about 9 and 13.