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:
Jun. 25, 1991
Filed:
Jan. 23, 1990
Applicant:
Inventor:
Shiro Taya, Tokyo, JP;
Assignee:
Kurita Water Industries Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23F / ;
U.S. Cl.
CPC ...
422 16 ; 252-8555 ; 252392 ; 252403 ;
Abstract
An anticorrosive for vapor/condensed water systems, which comprises at least one aminodiol represented by the following general formula: ##STR1## (in which R.sub.1, R.sub.2 and R.sub.3 each represents --H, --CH.sub.3, --C.sub.2 H.sub.5 or C.sub.3 H.sub.7 ; and n represents an integer of 0 to 2) and the process for inhibiting the corrosion of vapor/condensed water systems, which comprises at least one aminodiol as mentioned above to a boiler feed water at the concentration of 0.1 to 500 mg/l. The aminodiol, when added to feed water, migrates into condensed water in large quantities and inhibits the corrosion of piping systems and boilers in highly effective manner.