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. 08, 1984
Filed:
May. 10, 1983
Applicant:
Inventors:
Gerhard Stern, Linz, AT;
Klaus Weinrotter, Vocklabruck, AT;
Assignees:
Chemie Linz AG, Linz, AT;
Chemiefaser Lenzing AG, Lenzing, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524101 ; 524406 ; 524412 ; 524417 ; 524432 ; 524436 ; 524456 ;
Abstract
A polyacrylonitrile fiber which has flame-retardant properties, is produced by dry spinning, has an acrylonitrile content of at least 85% by weight in the parent polymer and contains as flame retarder 15 to 40% by weight of tris-2,3-dibromopropyl isocyanurate, based on the polymer. The flame-retardant effect can be further increased by a content of up to 10% by weight of one or more synergistic compounds.