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:
Sep. 04, 2001
Filed:
Dec. 06, 1999
Kunihiko Ueda, Shizuoka, JP;
Toshio Nishitani, Osaka, JP;
Hiroki Furuta, Kyoto, JP;
Teruaki Saijo, Ishikawa, JP;
Kanji Saito, Aichi, JP;
Hiroshi Kato, Gifu, JP;
Hiroshi Ohtani, Shiga, JP;
Shinji Shimizu, Ishikawa, JP;
Koji Hashimoto, Shizuoka, JP;
Toray Industries, Inc., , JP;
Abstract
A melt spinning pack, including a pack case, a spinneret having many spinning holes positioned at the bottom of the case, a pack cap having a polymer introducing hole at the center positioned at the top of the case, and a flow arranging plate having many flow arranging holes with restricted portions reduced in cross sectional area compared to the inlets of the holes positioned between the spinneret and the pack cap, satisfying the requirement that the contraction percentage R be 50% or less, respectively contained in the case.