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:
May. 07, 1985
Filed:
Dec. 01, 1983
Applicant:
Inventors:
Christian Guth, Basel, CH;
Paul Schafer, Riehen, CH;
Assignee:
Ciba Geigy Corporation, Ardsley, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C11D / ; D06L / ;
U.S. Cl.
CPC ...
8107 ; 252180 ; 25218625 ; 25218628 ;
Abstract
Magnesium complexes of oligomeric phosphonic acid esters of the formula ##STR1## in which Y.sub.1 is hydrogen or --COT.sub.1, R.sub.1, Q.sub.1 and T.sub.1 are alkyl and n.sub.1 is 1 to 16, are particularly suitable, in combination with polyhydroxy compounds, for use as stabilizers in alkaline, peroxide-containing bleach liquors for bleaching fibrous material made of or containing cellulose.