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:
Jul. 07, 2015
Filed:
Mar. 05, 2013
Applicant:
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Inventor:
Tomoyuki Hirayama, Ibaraki, JP;
Assignee:
NITTO DENKO CORPORATION, Ibaraki-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/004 (2006.01); G02B 6/02 (2006.01); C08L 63/00 (2006.01); C08G 59/24 (2006.01); G02B 1/04 (2006.01); G03F 7/038 (2006.01); G02B 6/12 (2006.01);
U.S. Cl.
CPC ...
G03F 7/004 (2013.01); G02B 6/02033 (2013.01); G02B 2006/12073 (2013.01); C08L 63/00 (2013.01); C08G 59/245 (2013.01); G02B 1/046 (2013.01); G02B 1/048 (2013.01); G03F 7/038 (2013.01);
Abstract
An excellent optical waveguide forming epoxy resin composition is provided, comprising: wherein Rand Rare each a hydrogen atom or a methyl group; Rto Rare each a hydrogen atom, a methyl group, a chlorine atom or a bromine atom; X is a Cto Calkylene group, an ethyleneoxy group, a di(ethyleneoxy) group, a tri(ethyleneoxy) group, a propyleneoxy group, a propyleneoxypropyl group, a di(propyleneoxy) propyl group or a tri(propyleneoxy)propyl group; and n is a natural number and has an average value of 1.2 to 5.