초록 ▼

Fire retardant and heat resistant yarns, fabrics, felts and other fibrous blends which incorporate high amounts of oxidized polyacrylonitrile fibers. Such yarns, fabrics, felts and other fibrous blends have a superior LOI, TPP and continuous operating temperature, compared to conventional fire retar

Fire retardant and heat resistant yarns, fabrics, felts and other fibrous blends which incorporate high amounts of oxidized polyacrylonitrile fibers. Such yarns, fabrics, felts and other fibrous blends have a superior LOI, TPP and continuous operating temperature, compared to conventional fire retardant fabrics. The yarns, fabrics, felts and other fibrous: blends are also more soft and supple, and are therefore more comfortable to wear, compared to conventional fire retardant fabrics. The yarns, fabrics, felts and other fibrous blends incorporate up to 99.9% oxidized polyacrylonitrile fibers, together with at least one additional fiber, such as p-aramid, in order to provide increased tensile strength and abrasion resistance of the inventive yarns, fabrics, felts and other fibrous blends. The yarns may be woven, knitted or otherwise assembled into a desired fabric.

대표청구항 ▼

[ What is claimed and desired to be secured by United States Letters Patent is:] [1.]1. A fire retardant and heat resistant fibrous blend comprising:oxidized polyacrylonitrile fibers included in an amount in a range from about 85.5% to about 99.9% by weight of the fibrous blend; andat least one type

[ What is claimed and desired to be secured by United States Letters Patent is:] [1.]1. A fire retardant and heat resistant fibrous blend comprising:oxidized polyacrylonitrile fibers included in an amount in a range from about 85.5% to about 99.9% by weight of the fibrous blend; andat least one type of strengthening fibers blended with the oxidized polyacrylonitrile fibers in a manner so as to comprise a fibrous blend having increased strength and abrasion resistance compared to a yarn, fabric or felt consisting exclusively of said oxidized polyacrylonitrile fibers and included in an amount in a range from about 0.1% to about 14.5% by weight of the fibrous blend.