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:
Nov. 12, 1991
Filed:
Mar. 13, 1990
Nobuyasu Nakasugi, Kyoto, JP;
San-Apro Limited, Kyoto, JP;
Abstract
A novel morpholino-substituted tertiary amine compound is proposed which is tris[2-(4-morpholino)ethyl] amine or a derivative thereof by optionally substituting methyl and/or ethyl groups for a part or all of the hydrogen atoms at the 2- and 6-positions of the morpholine rings. The amine compound can be synthesized by heating tris[N,N-di(2-hydroxyethyl)aminoethyl] amine or a corresponding derivative thereof in a mixture with sulfuric acid. The amine compound is useful as a catalyst for the urethane-forming reaction between a polyisocyanate compound and a polyol compound without the problems of environmental pollution or unpleasant odor as in the use of methyl or ethyl morpholine for the same purpose.