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, 2000
Filed:
Mar. 03, 1999
Applicant:
Inventors:
Assignee:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564126 ; 564125 ; 564130 ; 564201 ;
Abstract
A process for preparing lactamide with a high conversion and a high selectivity without the deterioration of a catalytic activity in a short time, which comprises subjecting lactonitrile to a hydrating reaction in the presence of (A) a catalyst including an oxide of manganese as a main component, (B) an oxidizing agent and (C) hydrogen cyanide or hydrogen cyanide and a compound represented by the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are each a hydrogen atom, a C.sub.1 to C.sub.8 alkyl group, a C.sub.1 to C.sub.8 hyroxyalkyl group, a C.sub.1 to C.sub.8 aminoalkyl group or a C.sub.1 to C.sub.8 halogenoalkyl group.