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.

Date of Patent:
Apr. 13, 2010

Filed:

May. 16, 2006
Applicants:

Hiroshi Uchida, Kawasaki, JP;

Yuko Sakata, Kawasaki, JP;

Ritsuko Hirakawa, Kawasaki, JP;

Kazuhiko Sato, Tsukuba, JP;

Masanori Ookoshi, Tsukuba, JP;

Inventors:

Hiroshi Uchida, Kawasaki, JP;

Yuko Sakata, Kawasaki, JP;

Ritsuko Hirakawa, Kawasaki, JP;

Kazuhiko Sato, Tsukuba, JP;

Masanori Ookoshi, Tsukuba, JP;

Assignee:

Showa Denko K.K., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 301/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

There is provided a novel method for producing a bifunctional epoxy monomer which comprises reacting diolefin with a hydrogen peroxide aqueous solution, in the presence of molybdenum or tungsten oxide as a catalyst to selectively epoxidize a double bound at a specific position. The bifunctional epoxy monomers provided by the present invention are substances widely used in various industrial fields such as chemical industry, as materials for resist materials (particularly solder resist materials), and intermediates of agrochemicals and medicines, and various polymers such as plasticizers, adhesives and coating resins.


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