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. 30, 1989
Filed:
Sep. 12, 1988
Applicant:
Inventors:
Hendrik Maatman, Arnhem, NL;
Bernardus M Koenders, Westervoort, NL;
Assignee:
Akzo N.V., Arnhem, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ; A01D / ;
U.S. Cl.
CPC ...
525432 ; 428359 ; 428395 ; 57243 ;
Abstract
Fibres consisting wholly or substantially of a mixture of poly-p-phenylene terephthalamide and an aromatic copolyamide. They display an improved tensile strength and elongation at break if the mixture contains, as the copolyamide, (2-25% b.w. of) a polycondensation product of terephthalic acid, p-phenylene diamine and a monomer selected from the group consisting of piperazine, benzidine and 1,4-diamino anthraquinone. The fibres are particularly suitable for use in the manufacture of tire yarn.