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:
Feb. 15, 2011
Filed:
Jun. 23, 2005
Kohei Takatani, Matsuyama, JP;
Makoto Kibayashi, Iyo-gun, JP;
Koji Matsumoto, Iyo-gun, JP;
Kazuhisa Narusawa, Matsuyama, JP;
Kohei Takatani, Matsuyama, JP;
Makoto Kibayashi, Iyo-gun, JP;
Koji Matsumoto, Iyo-gun, JP;
Kazuhisa Narusawa, Matsuyama, JP;
Toray Industries, Inc., Tokyo, JP;
Abstract
A spinning pack for dry-wet spinning is provided with a spinneret having not less than 6,000 spinning holes and having an aspect ratio Ra of not less than 2.5 for a spinning hole array of the spinning holes. In a device and method for producing a fiber bundle, a drawing angle of single fibers formed by the single fibers and a spinneret surface of a spinneret is in a range from 87° to 92°, the single fibers being fibers discharged from the outermost spinning holes located in the long side direction of the spinneret and running to a fiber bundle diverting guide provided in a coagulation bath.