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:
Mar. 31, 1981
Filed:
Mar. 31, 1980
Applicant:
Inventors:
Assignee:
Lever Brothers Company, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D / ;
U.S. Cl.
CPC ...
252102 ; 252 95 ; 252 98 ; 252 99 ; 25103 ;
Abstract
The stability of ethylene diamine tetra-(methylene phosphate)--EDTMA--and diethylene triamine penta-(methylene phosphonate)--DTPMP--incorporated as peracid stabilizer in bleaching and cleaning compositions comprising a percompound and an organic activator for said percompound is improved if said phosphonate compound is present as a complex of a metal ion selected from the group consisting of calcium, magnesium, zinc and aluminium ions, the molar ratio of said metal ion to said phosphonate compound in the complex being at least 1:1. Compositions comprising a percompound bleach, an organic activator and said metal complex of EDTMP or of DTPMP are provided.