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:
Jun. 11, 2013
Filed:
Feb. 08, 2008
Tatsuya Makino, Ibaraki, JP;
Atsushi Takahashi, Ibaraki, JP;
Masatoshi Yamaguchi, Ibaraki, JP;
Toshihiko Takasaki, Ibaraki, JP;
Tomoaki Shibata, Ibaraki, JP;
Masami Ochiai, Ibaraki, JP;
Tatsuya Makino, Ibaraki, JP;
Atsushi Takahashi, Ibaraki, JP;
Masatoshi Yamaguchi, Ibaraki, JP;
Toshihiko Takasaki, Ibaraki, JP;
Tomoaki Shibata, Ibaraki, JP;
Masami Ochiai, Ibaraki, JP;
Hitachi Chemical Company, Tokyo, JP;
Abstract
The present invention relates to a resin composition for an optical material comprising (A) a carboxylic acid-modified phenoxy resin, (B) a polymerizable compound and (C) a polymerization initiator, a resin film for an optical material comprising the above resin composition and an optical waveguide having a core part and/or a cladding layer formed by using the same. Provided are a resin composition for an optical material which is excellent in a heat resistance and a transparency and which is soluble in an alkaline aqueous solution, a resin film for an optical material comprising the above resin composition and an optical waveguide produced by using the same.