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:
Mar. 08, 2016
Filed:
Apr. 11, 2013
Battelle Memorial Institute, Columbus, OH (US);
Jay R Sayre, New Albany, OH (US);
Vince McGinniss, Columbus, OH (US);
C Byron Tolbert, Orient, OH (US);
Kelly J Jenkins, Hilliard, OH (US);
Jeffrey L Ellis, Gahanna, OH (US);
Tim B Hutson, Columbus, OH (US);
Sundee Angel, Kingston, OH (US);
Rachel Thurston, Columbus, OH (US);
Battelle Memorial Institute, Columbus, OH (US);
Abstract
A method of treating fibers to improve resistance to high temperatures and relative humidity includes providing poly(p-phenylene-2,6-benzobisoxazole) (PBO) fibers, exposing the PBO fibers to an atmosphere of supercritical COsaturated with an epoxy silane, i.e. 3-glycidoxypropyl methyldimethoxysilane. The PBO fibers are subjected to a first pressurizing and heating stage at a first temperature (50° C.) for a first period of time. The PBO fibers are then subjected to a second pressurizing and heating stage including increasing the temperature to a second temperature (110° C.) and holding at the second temperature for an additional period of time. The PBO fibers include 2-5 wt % of 3-glycidoxypropyl methyldimethoxysilane after diffusing the COout of the PBO fibers. The fibers are particularly useful in making lightweight body armor system components.