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:
Jan. 09, 1990
Filed:
Jan. 23, 1989
Applicant:
Inventors:
Robert M O'Neil, Flixton, GB;
John D Payne, Withington, GB;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ; C07C / ;
U.S. Cl.
CPC ...
252 / ; 252392 ; 564347 ; 564348 ; 564349 ;
Abstract
New composition comprises a functional fluid in contact with ferrous metal and a corrosion inhibiting amount of at least one compound of formula (I) ##STR1## or a derivative thereof in which R.sup.1, R.sup.2 and R.sup.3 are, independently, hydrogen, a C.sub.1 -C.sub.15 straight or branched chain alkyl residue, a C.sub.5 -C.sub.12 cycloalkyl residue, a C.sub.6 -C.sub.15 aryl residue or C.sub.7 -C.sub.12 alkaryl residue, and R.sup.4 and R.sup.5 are, independently, hydrogen, 2-hydroxyethyl or 2-hydroxypropyl with the provisos that