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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.:

US 8921616 B1

PDFFull Text
Expired
Date of Patent:
Dec. 30, 2014

Filed:

Jan. 12, 2012

Method for producing glycol from polyhydric alcohol

Applicants:

Tetsuro Kizaki, Ichihara, JP;

Keizo Iwatani, Ichihara, JP;

Xin Chen, Toyama, JP;

Satoshi Sato, Chiba, JP;

Inventors:

Tetsuro Kizaki, Ichihara, JP;

Keizo Iwatani, Ichihara, JP;

Xin Chen, Toyama, JP;

Satoshi Sato, Chiba, JP;

Assignees:

Clariant Catalysts (Japan) K.K., Tokyo, JP;

National University Corporation Chiba University, Chiba, JP;

Attorney:

Jianq Chyun IP Office

Primary Examiner:

Karl J Puttlitz

Int. Cl.
CPC ...
C07C 27/04 (2006.01); C07C 27/00 (2006.01); C07C 29/145 (2006.01); B01J 23/50 (2006.01); B01J 23/89 (2006.01); C07C 29/143 (2006.01); C07C 45/52 (2006.01);
U.S. Cl.
CPC ...
C07C 29/145 (2013.01); B01J 23/50 (2013.01); B01J 23/8926 (2013.01); B01J 23/8993 (2013.01); C07C 29/143 (2013.01); C07C 45/52 (2013.01);
Abstract

An object of the invention is to provide a production method that can produce glycol from polyhydric alcohol with high selectivity and in a satisfactory yield. The object is achieved by using a silver catalyst in a reaction for synthesizing hydroxyketone from polyhydric alcohol having adjacent hydroxyl groups, and a hydrogenation catalyst in a reaction for synthesizing glycol from hydroxyketone.

Find Patent Forward Citations

Kizaki, Tetsuro. (2014). Method for producing glycol from polyhydric alcohol (U.S. Patent No. 8921616). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8921616

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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