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. 11, 1978
Filed:
Dec. 26, 1974
Applicant:
Inventors:
Tetsuhiro Kusunose, Nobeoka, JA;
Masataka Ideka, Nobeoka, JA;
Kazuyuki Kitamura, Nobeoka, JA;
Tsukasa Shima, Nobeoka, JA;
Hiroshi Henmi, Nobeoka, JA;
Assignee:
Asahi Kasei Kogyo Kabushiki Kaisha, Osaka, JA;
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
2608 / ; 8178 / ; 8179 ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ;
Abstract
A process for preparing polyamides which comprises polymerizing a polyamide-forming compound selected from the group consisting of .omega.-aminocarboxylic acids, .omega.-lactams and an equimolar mixture of a diamine and a dicarboxylic acid and modifying the polyamide formed in the polymerization by incorporating at least one compound of the formula (I) ##STR1## wherein M represents an alkali metal or an alkaline earth metal; n is an integer of 2 to 4; and m is an integer of 2 or more; before, during or after the polymerization.