FLAME AND HEAT RESISTANT YARNS AND FABRICS
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United States of America Patent
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Issued Date -
Jun 11, 2015
app pub date -
Dec 5, 2013
filing date -
Dec 5, 2013
priority date (Note) -
Abandoned
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Abstract
The present invention relates to flame and heat resistant yarns comprising polyacrylate fibers, and to flame retardant textile materials formed from such yarns. The flame and heat resistant yarns include a series of polyacrylate fibers blended with a series of companion fibers, which can include other flame resistant fibers. The polyacrylate fibers provide enhanced char strength to the yarns, while the companion fibers can be selected to provide increased tensile strength and other desired properties to the flame and heat resistant yarns. The flame and heat resistant yarns can be used to form fabrics or textile materials for use in a variety of applications, which fabrics exhibit a reduced fabric char length when subject to vertical flammability testing, and meet flammability requirements for any or all of National Fire Protection Association Standards NFPA 1971, NFPA 1975, NFPA 2112, NFPA 1951, NFPA 1977, and/or NFPA 70E; or which further meet or exceed the flame resistance requirements achieving an SFI Foundation performance rating of 3.2A/1 to SFI 3.2A/40, and/or Code of Federal Regulations 16 CFR 1633.
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