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:
Sep. 26, 2006
Filed:
Jan. 28, 2005
Yukimasa Shimura, Tokyo, JP;
Junichi Takahashi, Tokyo, JP;
Yukimasa Shimura, Tokyo, JP;
Junichi Takahashi, Tokyo, JP;
Kurita Water Industries LTD, Tokyo, JP;
Abstract
Oxygen scavenger which can exhibit excellent oxygen reduction effect in a wide variety of conditions is provided as an alternative volatile oxygen scavenger to hydrazine. The oxygen scavenger contains a heterocyclic compound having N-substituted amino group such as 1-amino-4-methylpiperazine and a hydroxylamine compound such as N,N-diethylhydroxylamine. The oxygen scavenger may further contain a polyhydric phenol type catalyst such as pyrogallol. By adding the oxygen scavenger to feed water of a water system of a boiler, oxygen reduction treatment of the water system is carried out.