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:
Aug. 11, 1992
Filed:
Jun. 06, 1991
Applicant:
Inventor:
Ikuya Matsuura, Toyama, JP;
Assignee:
Mitsui Toatsu Chemicals, Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568474 ; 568472 ; 568476 ; 568479 ;
Abstract
A method for preparing methacrolein comprises subjecting isobutylene or a tertiary butanol to gas phase catalytic oxidation with molecular oxygen in the presence of a catalyst which comprises a mixture of a composition (I) represented by the following general formula I: