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:
Apr. 28, 2026
Filed:
Apr. 15, 2023
Ascend Performance Materials Operations Llc, Houston, TX (US);
James E. Polk, Milton, FL (US);
Chris E. Schwier, Boston, MA (US);
Ashish Sen, Pensacola, FL (US);
Craig A. Trask, Pensacola, FL (US);
Cihan Uzunpinar, Chattanooga, TN (US);
Chie-Hsiung Wang, Gulf Breeze, FL (US);
J. Marty Zabcik, Pensacola, FL (US);
Ascend Performance Materials Operations LLC, Houston, TX (US);
Abstract
A process of producing a polyamide polymer using in-line vacuum finishing technology in the absence of steam or other gases. The polyamide polymer, in particular Nylon 66, Nylon 6, and copolyamides, have a high molecular weight, excellent color, and low gel content. The polyamide polymer also has a relative viscosity greater than 50 as measured in a 90% strength formic acid solution; consistent viscosity with a standard deviation of less than 1; a gel content no greater than 50 ppm as measured by insolubles larger than 10 micron; and an optical defect content of less than 2,000 parts per million (ppm) as measured by optical control system (OCS). The polymer can be made into monofilaments or a multifilament yarn.