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. 02, 2009
Filed:
Feb. 19, 2004
Kazunori Tanaka, Kanagawa, JP;
Kaoru Okuno, Kanagawa, JP;
Tomoyuki Hattori, Kanagawa, JP;
Kiyoaki Moriuchi, Osaka, JP;
Hiroshi Hayami, Osaka, JP;
Kazunori Tanaka, Kanagawa, JP;
Kaoru Okuno, Kanagawa, JP;
Tomoyuki Hattori, Kanagawa, JP;
Kiyoaki Moriuchi, Osaka, JP;
Hiroshi Hayami, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
An object of the present invention is to provide a buffered optical fiber, which excels in environmental characteristics and mechanical characteristics and has high flame retardancy and excels in optical transmission characteristics, and to provide a buffered optical fiber, which is terminated with a connector and uses this buffered optical fiber. The buffered optical fiber of the invention is provided with a second coating layer on an outer peripheral surface of an optical fiber produced by providing a first coating layer on an outer peripheral surface of a glass fiber. A second resin composition constituting the second coating layer comprises 100 to 250 weight parts of metal hydroxide and 10 to 100 weight parts of a nitrogen-based flame retardant material per 100 weight parts of the base polymer. Further, the second resin composition does not contain halogenated materials.