Patent ID: 6551456
Filing Date: 2003-04-22
Classification: D21H,Y10T

Abstract:
A process of preparing a synthetic fiber paper having 50-80 parts, by weight, of poly(p-phenylene terephthal amide) fibers, 20-50 parts, by weight, of polyethylene glycol terephthalate fibers, and 0-50 parts, by weight, of powdered mica, comprising the following steps:treating the surface of a portion of said poly(p-phenylene terephthal amide) fibers to produce treated poly (p-phenylene terephthal amide) fibers; loosening and dissociating remaining of said poly (p-phenylene terephthal amide) fiber and said polyethylene glycol terephthalate fibers to produce loosened and dissociated fibers; compounding and pulping said treated poly (p-phenylene terephthal amide) fiber and said loosened and dissociated fibers to produce a pulp; and processing said pulp to produce said synthetic fiber paper wherein said polyethylene glycol terephthalate fibers have a melting point of about 255-260Â° C.