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:
May. 26, 1981
Filed:
Nov. 16, 1979
Applicant:
Inventors:
Shozo Ejima, Moriyamashi, JP;
Susumu Tomioka, Moriyamashi, JP;
Tadao Matsumoto, Moriyamashi, JP;
Naruaki Hane, Moriyamashi, JP;
Assignee:
Chisso Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D04H / ;
U.S. Cl.
CPC ...
428296 ; 156167 ; 156181 ; 156229 ; 264D / ; 264168 ; 428369 ; 428370 ; 428374 ; 1563096 ; 1563082 ;
Abstract
Heat-adhesive side-by-side type composite fibers consisting of a component composed mainly of a crystalline polypropylene and a component composed mainly of an olefin polymer, having few naturally developed crimps and few latent crimpability and superiority in undetachability of the composite components, are produced by using two composite components having a specified relationship of melt flow ratio and by stretching unstretched composite fibers at a specified temperature range.