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. 04, 1977
Filed:
Nov. 03, 1975
Tadao Tsutsumi, Nagoya, JA;
Nobuo Kato, Aichi, JA;
Masanobu Morikawa, Nagoya, JA;
Toshikazu Aoyama, Nagoya, JA;
Kazumi Nagai, Shiga, JA;
Toray Industries, Inc., Tokyo, JA;
Abstract
Flame-retarding polyamide composition having excellent mechanical and flame retardant properties is disclosed. The composition comprises polyamide, about 3 to 40% by weight of melamine on the basis of the polyamide, and about 0.5 to 20% by weight on the basis of the polyamide and about 2 to 75% by weight on the basis of melamine of a compound represented by a compound selected from the group consisting of the following formulas (I) and (II) ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are the same or different radicals selected from the group consisting of hydrogen, alkyl, alicyclic and aromatic radicals having from 1 to 10 carbon atoms, and from such radicals having a substituent selected from the group consisting of --OH, --COOR' and --CONH.sub.2, wherein R' is aliphatic alkyl group having from 1 to 5 carbon atoms.