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. 04, 2008
Filed:
Feb. 13, 2008
Akikazu Amagai, Tokyo, JP;
Kenzi Ishii, Tokyo, JP;
Kiyonari Hiramatsu, Tokyo, JP;
Makoto Miyamoto, Tokyo, JP;
Daisuke Ohno, Tokyo, JP;
Katsutoshi Yamazaki, Tokyo, JP;
Yasumasa Norisue, Tokyo, JP;
Akikazu Amagai, Tokyo, JP;
Kenzi Ishii, Tokyo, JP;
Kiyonari Hiramatsu, Tokyo, JP;
Makoto Miyamoto, Tokyo, JP;
Daisuke Ohno, Tokyo, JP;
Katsutoshi Yamazaki, Tokyo, JP;
Yasumasa Norisue, Tokyo, JP;
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Abstract
A bifunctional phenylene ether oligomer of the formula (1), obtained by oxidation polymerization of a bivalent phenol of the formula (2) and a monovalent phenol of the formula (3),HO—YO—X—OY—OH   (1)HO—X—OH   (2)Y—OH   (3) and Y—O— is represented by the formula (3),