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:
Dec. 16, 1980
Filed:
Jul. 12, 1979
Alan Marshall, Macclesfield, GB;
Norman Richardson, Middleton, GB;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
Compositions useful for inhibiting the corrosion of ferrous metals in contact with aqueous systems comprise (a) a telomeric compound of formula: ##STR1## or salts thereof, wherein R.sup.11 is hydrogen or a methyl or ethyl residue; R is hydrogen, a straight- or branched alkyl residue having from 1-18 carbon atoms, a cycloalkyl residue having from 5-12 carbon atoms, an aryl residue, an aralkyl residue, a residue of formula: ##STR2## wherein R.sup.11 has its previous significance; and the sum of n+m is an integer of at most 100; or a residue --OX wherein X is hydrogen or a straight- or branched alkyl residue having 1-4 carbon atoms and R.sup.1 is a residue --OX, wherein X has its previous significance.