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    • 7. 发明公开
    • 열가소성 수지 필름 및 그 제조 방법
    • 热塑性树脂薄膜及其制造方法
    • KR1020100014488A
    • 2010-02-10
    • KR1020097019591
    • 2008-03-25
    • 후지필름 가부시키가이샤
    • 노리츠네마사히코
    • B29D7/00B29C47/88B29C47/78B29K45/00
    • B29C47/886B29C47/0021B29C47/8805B29C47/8845
    • A process for producing a thermoplastic resin film through extrusion of a thermoplastic resin molten in an extruder (22) from a die (24) in the form of a sheet onto a rotating cooling roller (28) and cooling solidification thereof to thereby attain film forming. The process is characterized by including the extrusion step of extruding while controlling the extrusion temperature (T) at the extrusion of molten thermoplastic resin through the extruder (22) so as to be in the range of T-40°C to T+30°C wherein Tis the temperature at which when the thermoplastic resin is allowed to stand still in a nitrogen atmosphere for 1 hr, the thermal reduction thereof is 0.3 wt.% and the heating step of heating so that by landing of extruded thermoplastic resin on the cooling roller (28), the landing temperature is equal to or higher than the extrusion temperature.
    • 一种热塑性树脂薄膜的制造方法,其特征在于,将挤出机(22)中熔融的热塑性树脂从片状的模具(24)挤出到旋转冷却辊(28)上并冷却固化,从而得到成膜 。 该方法的特征在于包括挤出挤出步骤,同时通过挤出机(22)控制熔融热塑性树脂挤出时的挤出温度(T),从而在T-40℃至T + 30℃的范围内 其中T为使热塑性树脂在氮气气氛中静置1小时的温度,其热还原率为0.3重量%,加热步骤使得挤出的热塑性树脂在冷却时着陆 辊(28),着陆温度等于或高于挤出温度。