Non-woven mats by melt blowing
    1.
    发明授权
    Non-woven mats by melt blowing 失效
    非纺织物通过熔融吹制

    公开(公告)号:US3849241A

    公开(公告)日:1974-11-19

    申请号:US22776972

    申请日:1972-02-22

    Abstract: Melt blown non-woven mats prepared from thermoplastic polymer fibers and substantially completely free of polymer shot are produced at high polymer throughput rates in an improved melt blowing process in which thermoplastic polymer resins, preferably polypropylene, having initial intrinsic viscosities of at least 1.4, are degraded, optionally in the presence of a free radical source compound, to have both reduced intrinsic viscosities and an apparent viscosity in the melt-blowing nozzle orifices of from about 50 to about 300 poise.

    Abstract translation: 在热塑性聚合物纤维中制备的基本上完全不含聚合物射流的熔喷无纺毡在改进的熔喷法中以高聚合物生产速率生产,其中具有至少1.4的初始特性粘度的热塑性聚合物树脂,优选聚丙烯是 任选在存在自由基源化合物的情况下降解,使熔融喷嘴孔中的特性粘度和表观粘度均降低约50至约300泊。

Patent Agency Ranking