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    • 3. 发明专利
    • JPH05247819A
    • 1993-09-24
    • JP7621892
    • 1992-02-27
    • TOYO BOSEKI
    • ISODA HIDEOHAMAGUCHI TADAAKISAWAHARA SEIJI
    • B68G1/00D01F6/86D01F8/14D04H3/005D04H3/011D04H3/00
    • PURPOSE:To obtain a cushioning material suitable for vehicle seats, capable of being recycled, having especially excellent heat-resistant and shape retention resistances. CONSTITUTION:This cushioning material is obtained by blending parent material fibers with thermally bondable fibers, partially fusing the blend between the fibers to form points of contact and an integrated structure, wherein the parent material fibers have >=30g/d initial tensile resistance, specific correlation between the initial tensile resistance and elastic limit elongation and solid crimping, and the thermally bondable fibers have a combination of sheath core type fibers comprising a polyester ether elastomer having 160-220 deg.C melting point, a specific betadispersion peak temperature of Tandelta and a specific alpha dispersion build up temperature as a bonding component. The cushioning material is suitably useful as a cushioning material, has extremely excellent heat resistance and shape retention resistance, improved air passability, water permeability, low-frequency wave absorption characteristics and is a comfortable cushioning material. The material can be recycled and is especially admirable as a cushioning material substitutable for polyurethane material in problems of environmental pollution.