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:
Jan. 31, 2012
Filed:
Jul. 05, 2006
In-sik Han, Daegu, KR;
Jae-young Lee, Daegu, KR;
Seung-hwan Lee, Gumi-si, KR;
Chang-bae Lee, Daegu, KR;
So-yeon Kwon, Busan, KR;
In-Sik Han, Daegu, KR;
Jae-Young Lee, Daegu, KR;
Seung-Hwan Lee, Gumi-si, KR;
Chang-Bae Lee, Daegu, KR;
So-Yeon Kwon, Busan, KR;
Kolon Industries, Inc., Kwacheon-si, KR;
Abstract
Disclosed are wholly aromatic polyamide filament and a method of manufacturing the same, characterized in that, in a process of preparing wholly aromatic polyamide polymer, a multiple tubular feed pipe for polymeric monomer and polymerization solvent with specific construction of adjacent inner pathsand outer pathswhich are alternately arranged one another is used to feed either aromatic diacid chloride A or aromatic diamine dissolved in the polymerization solvent B into a polymerization reactorthrough corresponding one among the inner and outer pathsand. The present invention is effective to progress uniform and homogeneous polymerization over all of area of a polymerization reactorleading to reduction of deviation in degree of polymerization, since polymeric monomers are miscible and react together very well immediately after putting the monomers into the reactor. Accordingly, the wholly aromatic polyamide filament produced exhibits narrow PDI and increased ACS, so as to considerably improve strength and modulus thereof.