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. 28, 2005
Filed:
Apr. 29, 2004
Kimiaki Kashiwagi, Kanagawa, JP;
Gen Ogawa, Kanagawa, JP;
Takashi Okazoe, Kanagawa, JP;
Kunio Watanabe, Kanagawa, JP;
Eisuke Murotani, Kanagawa, JP;
Kazuya Oharu, Kanagawa, JP;
Kimiaki Kashiwagi, Kanagawa, JP;
Gen Ogawa, Kanagawa, JP;
Takashi Okazoe, Kanagawa, JP;
Kunio Watanabe, Kanagawa, JP;
Eisuke Murotani, Kanagawa, JP;
Kazuya Oharu, Kanagawa, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
A novel fluoropolymer which can be an optical resin material having a low refractive index and excellent heat resistance, and a novel fluorinated diene compound having two unsaturated bonds, capable of presenting such a fluoropolymer, are presented. Further, by virtue of the low refractive index and excellent heat resistance, the polymer presents a high performance optical transmitter and a plastic optical fiber. A fluorinated diene compound represented by CF═CFCF(OR)CFOCF═CF(wherein Ris a perfluoroalkyl group such as a trifluoromethyl group), and a fluoropolymer thereof. Further, an optical transmitter made by using such a fluoropolymer, and a plastic optical fiber having a core comprising such a fluoropolymer and a fluorinated low molecular weight compound contained therein as a refractive index-increasing agent.