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:
Sep. 01, 2015
Filed:
Dec. 16, 2011
Xuedong LI, Shanghai, CN;
Johnason Shi, Shanghai, CN;
Xuedong Li, Shanghai, CN;
Johnason Shi, Shanghai, CN;
E I DU PONT DE NEMOURS AND COMPANY, Wilmington, DE (US);
Abstract
A hybrid cord, comprising (a) a core yarn consisting of meta-aromatic polyamide fibers, and (b) at least one wrapping yarn consisting of para-aromatic polyamide fibers that warps around the core yarn at a helical angle, wherein (i) the core yarn makes up 20-60% by weight and the wrapping yarn makes up 40-80% by weight of the hybrid cord, based on the total weight of the hybrid cord, (ii) the twist multiplier of the core yarn is 0-0.5, the twist multiplier of the hybrid cord is 4.5-12; and the twist per meter (tpm) ratio between the at least one wrapping yarn and the hybrid cord ranges from 0.8 to 1.2, and (iii) the helical angle of the wrapping yarn is 10-60 degrees.