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:
May. 07, 2013
Filed:
Aug. 05, 2009
Hidetoshi Hayashi, Omuta, JP;
Masaru Kawaguchi, Omuta, JP;
Akinori Ryu, Arao, JP;
Hironori Kuboi, Ogori, JP;
Mamoru Takashina, Omuta, JP;
Seiichi Kobayashi, Omuta, JP;
Touru Miura, Noshitokyo, JP;
Hidetoshi Hayashi, Omuta, JP;
Masaru Kawaguchi, Omuta, JP;
Akinori Ryu, Arao, JP;
Hironori Kuboi, Ogori, JP;
Mamoru Takashina, Omuta, JP;
Seiichi Kobayashi, Omuta, JP;
Touru Miura, Noshitokyo, JP;
Mitsui Chemicals, Inc., Minato-Ku, Tokyo, JP;
Abstract
The polymerizable composition for an optical material of the present invention comprises a phenylene diisocyanate, at least one polythiol compound selected from the group consisting of 4-mercaptomethyl-1,8-dimercapto-3,6-dithiaoctane, 4,8-, 4,7- or 5,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, 2,5-bis(mercaptomethyl)-1,4-dithiane, bis(mercaptoethyl)sulfide, 1,1,3,3-tetrakis(mercaptomethylthio)propane, 4,6-bis(mercaptomethylthio)-1,3-dithiane, 2-(2,2-bis(mercaptomethylthio)ethyl)-1,3-dithietane, 1,1,2,2-tetrakis(mercaptomethylthio)ethane 3-mercaptomethyl-1,5-dimercapto-2,4-dithiapentane and tris(mercaptomethylthio)methane.