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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.:

US 4395531 B1

PDFFull Text
Date of Patent:
Jul. 26, 1983

Filed:

Feb. 23, 1982

Process for the preparation of polyamide compounds by the reaction of

Applicant:
Inventors:

Toshihiro Toyoda, Yokohama, JP;

Motoo Kawamata, Yokohama, JP;

Masanori Osawa, Yokohama, JP;

Masayoshi Itoh, Yokohama, JP;

Kazumi Mizutani, Yokohama, JP;

Masahiro Kono, Kanagawa, JP;

Assignee:

Mitsui Toatsu Chemical Incorporated, , JP;

Attorney:

McGlew & Tuttle

Primary Examiner:

Maurice J Welsh

Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 49 ; 528 52 ; 528 57 ;
Abstract

Disclosed is a process for the preparation of polyamide compounds by reacting at least one polycarboxylic acid with at least one diisocyanate in the presence of a catalyst comprising at least one mono-alkali metal salt of dicarboxylic acid. The polyamide compounds prepared by this process have a substantially linear configuration and a high degree of polymerization and, therefore, are suitable for the manufacture of fibers, films and molded articles.

Find Patent Forward Citations

Toyoda, Toshihiro. (1983). Process for the preparation of polyamide compounds by the reaction of (U.S. Patent No. 4395531). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4395531

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