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. 20, 1977
Filed:
Jul. 14, 1975
Applicant:
Inventors:
Masatoshi Mineo, Mishima, JA;
Ken-ichiro Oka, Mishima, JA;
Kiyoshi Nakagawa, Mishima, JA;
Hiyoshi Matsuda, Mishima, JA;
Shigeo Ohno, Mishima, JA;
Yasuo Takagi, Mishima, JA;
Assignee:
Toray Industries, Inc., Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01D / ;
U.S. Cl.
CPC ...
2641 / ; 2642 / ;
Abstract
A process for producing a highly oriented polyester undrawn yarn comprising melt-spinning a polyester from a spinneret, solidifying the melt-spun yarn and taking up a solidified yarn at a take-up velocity from 2,500 to 4,500 m/min, wherein the spinning length is set within a specific range in accordance with the take-up velocity, yarn denier and maximum allowable tension of the yarn.