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:
Apr. 08, 2003
Filed:
Oct. 31, 2000
Applicant:
Inventors:
Assignee:
Ube Nitto Kasei Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D02J 1/22 ;
U.S. Cl.
CPC ...
D02J 1/22 ;
Abstract
Crystalline polymers are drawn using pressurized saturated steam having an absolute pressure of at least 2.0 kg/cm as a drawing medium. The steam is charged into an airtight container having a drawable material inlet for feeding a drawable material and a drawn product outlet for withdrawing a drawn product. Pressurized water is utilized to prevent leakage of the pressurized saturated steam through the inlet and outlet and to cool the drawn product, so that the product formed of a crystalline polymer has improved physical properties.