Method of producing composite sheet having polyolefin foam layer
    5.
    发明公开
    Method of producing composite sheet having polyolefin foam layer 有权
    Verfahren zur Herstellung eine eine Polyolefinschaumschicht enthaltenden Mehrschichtfilms

    公开(公告)号:EP1491329A1

    公开(公告)日:2004-12-29

    申请号:EP04014419.8

    申请日:2004-06-19

    申请人: JSP Corporation

    摘要: A method of producing a composite sheet having a foam layer of a first polyolefin-based resin and a surface layer of a second polyolefin-based resin provided on at least one side of the foam layer and containing a polymeric antistatic agent. The method includes coextruding through die a first melt containing the first polyolefin-based resin and a physical blowing agent and a second melt containing the second polyolefin-based resin, the polymeric antistatic agent and a volatile plasticizer to obtain the composite sheet. The amount of the polymeric antistatic agent is 4 to 100 parts by weight per 100 parts by weight of the second polyolefin-based resin and the amount of the volatile plasticizer is 5 to 50 parts by weight per 100 parts by weight of a total amount of the second polyolefin-based resin and the polymeric antistatic agent. The second polyolefin-based resin has a crystallization temperature of Ta [°C] and a melt viscosity of Ma [Pa·s], while the polymeric antistatic agent has a crystallization temperature of Tb [°C] and a melt viscosity of Mb [Pa·s], wherein Ta, Tb, Ma and Mb satisfy the following conditions: Tb Mb

    摘要翻译: 将聚合物型抗静电剂,挥发性增塑剂和聚烯烃类树脂混合并共挤出以形成聚烯烃类树脂层(I)。 将聚烯烃类树脂层层压在含有聚烯烃类树脂和物理发泡剂的聚烯烃类树脂发泡体层(H)上。 聚合物型抗静电剂具有特定的结晶温度和熔融粘度。 将聚合物型抗静电剂(重量份)(5-100)与聚烯烃类树脂(100)混合,得到捏合材料。 将挥发性增塑剂(5-50)加入到捏合材料中,并将所得树脂熔体共挤出以形成聚烯烃类树脂层(I)。 聚烯烃类树脂层层叠在通过混合聚烯烃类树脂和物理发泡剂形成的聚烯烃类树脂发泡体层(H)的至少一个表面上。 层(I)的聚烯烃类树脂的聚合物型抗静电剂的结晶化温度(℃/℃)和结晶温度(Ta in℃)满足Tb小于Tb + 30的Tb 度下进行。 层(I)的聚烯烃类树脂的熔体粘度(Pa.s)为大于聚合物型抗静电剂的熔体粘度(Mb,以Pa.s计)。 聚烯烃树脂层(I)和泡沫材料层(H)由聚乙烯类树脂组成。 发泡片包括独立权利要求。

    Multiple layers laminated polyolefin foam
    8.
    发明公开
    Multiple layers laminated polyolefin foam 有权
    Mehrschichtiger层压机聚烯烃

    公开(公告)号:EP1318008A1

    公开(公告)日:2003-06-11

    申请号:EP01128442.9

    申请日:2001-12-05

    申请人: JSP CORPORATION

    IPC分类号: B32B5/18 B32B27/32 B29C47/06

    摘要: The present invention relates to a sheet or board like multiple layers laminated polyolefin foam having a plurality of polyolefin layers laminated on at least one side of a polyolefin foam by a coextrusion method. More specifically, the present invention relates to said multiple layers laminated polyolefin foam, wherein the thickness of the outermost layer constituting the plurality of polyolefin layers is 5 to 80 µm, and the density d (g/L) of the polyolefin foam, the melt flow rate X (g/10 min) of the polyolefin constituting the innermost layer among the plurality of polyolefin layers, and the thickness Y (µm) of the innermost layer of the multiple polyolefin layers satisfy the following relationships (1) to (4). Y ≦ 0.29dX 5 ≦ X ≦ 40 70 ≦ Y ≦ 300 100 ≦ d ≦ 300

    摘要翻译: 本发明涉及通过共挤出法在聚烯烃泡沫的至少一面上层叠有多个聚烯烃层的多层层压聚烯烃泡沫的片材或板。 更具体地,本发明涉及所述多层层压聚烯烃泡沫,其中构成多个聚烯烃层的最外层的厚度为5-80μm,聚烯烃泡沫的密度d(g / L), 构成多个聚烯烃层中最内层的聚烯烃的熔体流动速率X(g / 10min),多聚烯烃层的最内层的厚度Y(μm)满足以下关系式(1)〜( 4)。 Y 5 70 DF NUM =”(4)“> 100