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US 4,868,041 AGranted
Cloth for protection against flames
AssigneeToyo Boseki Kabushiki Kaisha
InventorsMashiro Yamagishi, Takumi Minagawa, Hiroshi Yoshida
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Abstract
Cloth for protection against flames which comprises woven or knitted composite yarns wherein wholly aromatic polyamide fibers of a general formula; --NHAr.sub.1 NHCOAr.sub.2 CO-- and/or --NHAr.sub.3 CO-- wherein Ar.sub.1, Ar.sub.2 and Ar.sub.3 are independently bivalent aromatic groups, respectively, are disposed as cores and flameproofed cellulosic fibers and/or wool fibers are disposed around said cores.
Claims7
Cloth for protection against flames which comprises woven or knitted composite yarns wherein wholly aromatic polyamide fibers of a general formula:
- --NHAr.sub.1 NHCOAr.sub.2 CO--.pi.and/or
- -NHAr.sub.3 CO--
- Ar.sub.1, Ar.sub.2 and Ar.sub.3 are independently bivalent aromatic groups, respectively, are disposed as cores and flameproofed cellulosic fibers and/or flameproofed wool fibers are disposed around said cores.
Dependencies are inferred from the claim text.