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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 9696621 B1

PDFFull Text
Date of Patent:
Jul. 04, 2017

Filed:

Oct. 24, 2014

Optical waveguide photosensitive resin composition including a diaryliodonium cation-based photoacid generator, photocurable film for forming optical waveguide core layer, optical waveguide using same, and mixed flexible printed circuit board for optical/electrical transmission

Applicant:

Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;

Inventor:

Tomoyuki Hirayama, Ibaraki, JP;

Assignee:

NITTO DENKO CORPORATION, Osaka, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Akm Enayet Ullah

Int. Cl.
CPC ...
G02B 6/13 (2006.01); G03F 7/038 (2006.01); C08L 101/00 (2006.01); G02B 6/138 (2006.01); C08G 59/68 (2006.01); G02B 6/42 (2006.01); G03F 7/00 (2006.01); G03F 7/004 (2006.01); H05K 1/02 (2006.01); H05K 3/28 (2006.01); G02B 6/12 (2006.01);
U.S. Cl.
CPC ...
G03F 7/038 (2013.01); C08G 59/68 (2013.01); C08L 101/00 (2013.01); G02B 6/13 (2013.01); G02B 6/138 (2013.01); G02B 6/4281 (2013.01); G03F 7/0005 (2013.01); G03F 7/0045 (2013.01); G02B 2006/12069 (2013.01); H05K 1/0274 (2013.01); H05K 3/287 (2013.01);
Abstract

Provided is an optical waveguide photosensitive resin composition containing a photocurable resin and a photopolymerization initiator, in which the photopolymerization initiator is a specific photoacid generator represented by the general formula (1). Accordingly, when a core layer is formed by using the optical waveguide photosensitive resin composition as a material for forming an optical waveguide, especially a core layer-forming material, excellent high transparency (low loss effect) is obtained. In the formula (1), Rand Reach represent hydrogen or an alkyl group having 1 to 15 carbon atoms, and may be identical to or different from each other.

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