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:
Feb. 23, 2010
Filed:
Sep. 27, 2006
Dongwook Jung, Raleigh, NC (US);
Richard Kotek, Raleigh, NC (US);
Alan E. Tonelli, Cary, NC (US);
Nadarajah Vasanthan, Princeton, NJ (US);
Dongwook Jung, Raleigh, NC (US);
Richard Kotek, Raleigh, NC (US);
Alan E. Tonelli, Cary, NC (US);
Nadarajah Vasanthan, Princeton, NJ (US);
North Carolina State University, Raleigh, NC (US);
Abstract
A process for preparing high initial modulus and high tensile strength polyamide fibers is described. The process comprises complexing the polyamide with a Lewis acid, dry-jet wet spinning the complexed fibers, drying the spun fibers for a period of time, drawing the fibers, and soaking the fibers in solvent to remove the Lewis acid. High molecular weight nylon 6,6 fibers prepared according to the described process show initial moduli of up to 30.1 GPa and tenacities of up to 2.5 GPa.