PVC MEMBRANE WITH REDUCED PLASTICIZER MIGRATION
    2.
    发明申请
    PVC MEMBRANE WITH REDUCED PLASTICIZER MIGRATION 审中-公开
    PVC膜与减少的塑料迁移

    公开(公告)号:US20150300023A1

    公开(公告)日:2015-10-22

    申请号:US14755938

    申请日:2015-06-30

    摘要: The invention relates to a membrane including a partition layer, wherein the partition layer contains at least 50 wt % of PVC, and a barrier layer. The barrier layer can be a barrier layer, wherein the barrier layer has a polyamide layer containing more than 50 wt % of copolymer, wherein said polyamide layer is connected to the partition layer by a polyurethane layer, wherein the polyurethane layer contains more than 10 wt % of polyurethane. Alternatively, the barrier layer can be a barrier layer, wherein the barrier layer is made of a composition containing 5-50 wt % of polyurethane and 50-95 wt % of copolymer. The membranes according to the invention have significantly lower plasticizer migration compared to the membranes of the prior art and are characterized by improved aging resistance, in particular with regard to the adhesion of the barrier layer to the partition layer, and impermeability to moisture.

    摘要翻译: 本发明涉及一种包括分隔层的膜,其中分隔层含有至少50wt%的PVC和阻挡层。 阻挡层可以是阻挡层,其中阻挡层具有含有大于50重量%共聚物的聚酰胺层,其中所述聚酰胺层通过聚氨酯层连接到隔离层,其中聚氨酯层含有超过10重量% %的聚氨酯。 或者,阻挡层可以是阻挡层,其中阻挡层由含有5-50重量%的聚氨酯和50-95重量%的共聚物的组合物制成。 根据本发明的膜与现有技术的膜相比具有显着更低的增塑剂迁移,并且其特征在于改善的耐老化性,特别是关于阻隔层与分隔层的粘合性和对水分的不渗透性。