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:
Jul. 25, 1989
Filed:
Jun. 30, 1987
Applicant:
Inventors:
Kazuo Kurita, Ohtsu, JP;
Masahiro Hayashi, Ohtsu, JP;
Toshihiko Ohta, Ohtsu, JP;
Hideaki Ishihara, Ohtsu, JP;
Fujio Okada, Ohtsu, JP;
Wataru Yoshikawa, Ohtsu, JP;
Akira Chiba, Ohtsu, JP;
Susumu Tate, Ohtsu, JP;
Assignee:
Toyo Boseki Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528272 ; 528289 ; 5283081 ; 5283082 ; 2641761 ; 2642107 ; 2642108 ;
Abstract
Polyester fibers having both a high strength and a high modulus prepared from ethylene terephthalate polyester, and having an intrinsic viscosity of not less than 1.0 and an initial tensile modulus is not less than 130 g/d, said intrinsic viscosity being determined in a mixed solvent of p-chlorophenol and tetrachloro ethane (3:1) at 30.degree. C. Processes for producing the fibers are also disclosed.