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. 06, 1983
Filed:
Dec. 07, 1981
Applicant:
Inventors:
Assignee:
Unitika Limited, Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A23F / ; B29H / ; D01F / ; D06M / ;
U.S. Cl.
CPC ...
523455 ; 81156 ; 8DIG / ; 1561 / ; 252-89 ; 264211 ; 427387 ; 523400 ;
Abstract
A method of manufacturing polyester fibers with good adhesion to rubber is disclosed, characterized in that, in the process of spinning polyester fiber, a spinning oil containing an epoxy compound, an ethylene urea compound, and an ethylene urea compound polymerization catalyst is added, and it is then heat treated.