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. 14, 2000
Filed:
Apr. 27, 1998
Applicant:
Inventors:
Tomoatsu Iwakura, Mie, JP;
Hidekazu Miyagi, Mie, JP;
Assignee:
Mitsubishi Chemical Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568867 ; 568867 ;
Abstract
A process for producing an alkylene glycol which comprises a step of reacting an alkylene oxide with water in the presence of a catalyst, wherein the catalyst comprises an anion-exchange resin comprising: a polymer of a vinylaromatic compound as a substrate; and quaternary ammoniums group each bonded to the respective aromatic groups of the polymer substrate via a connecting group having a chain length of three or more atoms.