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:
Aug. 31, 2021
Filed:
Sep. 08, 2020
Furukawa Electric Co., Ltd., Tokyo, JP;
Hiroki Tanaka, Tokyo, JP;
Kenji Yokomizo, Tokyo, JP;
Tomohiro Ishimura, Tokyo, JP;
Hirotaka Watanabe, Tokyo, JP;
Yoshihiro Arashitani, Tokyo, JP;
FURUKAWA ELECTRIC CO., LTD., Tokyo, JP;
Abstract
Provided is an optical fiber ribbon and an optical fiber cable, which are adaptable to manufacture at a high velocity, in the intermittent connecting type optical fiber ribbon obtained by adhering and connecting adjacent colored optical fibers by intermittent connecting portions. In an optical fiber ribbonof the present invention, since, in addition to polyol having a weight average molecular weight in a specific range, rheology control agent is contained in a specific range in a material forming an intermittent connecting portion, the Newtonian region between a low shear rate region and a high shear rate region of the material forming the intermittent connecting portioncan be adjusted. Thus, scattering of the material due to a centrifugal force generated by rotation of an application roll that applies the material at the time of manufacture and the like can be suppressed, and the application amount to colored optical fibercan be stabilized. In addition, the optical fiber ribboncan maintain suppression of such scattering and the like even in the manufacture at a high linear velocity.