公开(公告)号：US5800913A

公开(公告)日：1998-09-01

申请号：US568022

申请日：1995-12-06

申请人： Rudolf Mauer ,  Michael Schreck ,  Adolf Wilhelm

发明人： Rudolf Mauer ,  Michael Schreck ,  Adolf Wilhelm

IPC分类号： B32B27/32 ,  B32B5/16

CPC分类号： B32B27/32 ,  Y10T428/25 ,  Y10T428/256 ,  Y10T428/258 ,  Y10T428/265 ,  Y10T428/31681

摘要： Heat-sealable, white-opaque, biaxially oriented, multilayer polypropylene film, process for the production thereof, and the use thereof. The invention relates to a heat-sealable, white-opaque, biaxially oriented, multilayer polypropylene film comprising a core layer and at least one interlayer arranged there.

摘要翻译： 可热封，白色不透明，双轴取向，多层聚丙烯薄膜，其制造方法及其用途。 本发明涉及一种可热密封的白色不透明双轴取向的多层聚丙烯薄膜，其包含芯层和布置在其中的至少一层。

公开(公告)号：US4734318A

公开(公告)日：1988-03-29

申请号：US927163

申请日：1986-11-05

申请人： Guenther Crass ,  Rudolf Mauer ,  Lothar Bothe

发明人： Guenther Crass ,  Rudolf Mauer ,  Lothar Bothe

IPC分类号： B32B27/32 ,  B32B27/08

CPC分类号： B32B27/32 ,  Y10T428/24975 ,  Y10T428/2826 ,  Y10T428/31663 ,  Y10T428/31913

摘要： A sealable, transparent multilayer film comprised of a base layer, essentially of polypropylene, which is coated on both sides with further polyolefin layer is described. The base layer is coated on both surfaces with a layer of polypropylene which contains, as additives(i) 0.1 to 1% by weight of an inorganic pigment and(ii) 0.2 to 1% by weight of an oxyalkylamine, in each case relative to the total weight of the layer. Both free surfaces of the polypropylene layers are coated with a sealable covering layer which comprises a combination of(a) 68.5 to 89.7% by weight of an olefin resin composition comprising a copolymer or terpolymer of ethylene, propylene, butylene or further .alpha.-olefins having 5 to 10 carbon atoms or mixtures of these,(b) 5 to 15% by weight of a low molecular weight resin compatible with the olefin resin composition,(c) 5 to 15% by weight of a propylene homopolymer and(d) 0.3 to 1.5% by weight of polydiorganosiloxane,in each case relative to the total weight of the sealable covering layers.

摘要翻译： 描述了一种可密封的透明多层膜，其由基本上由聚丙烯组成的基层，其两面涂覆有另外的聚烯烃层。 基材层在两面上涂覆有一层聚丙烯，该聚丙烯层包含作为添加剂（i）0.1至1重量％的无机颜料和（ii）0.2至1重量％的氧烷基胺，在每种情况下相对于 层的总重量。 聚丙烯层的两个自由表面涂覆有可密封的覆盖层，其包含（a）68.5至89.7重量％的包含乙烯，丙烯，丁烯或其它α-烯烃的共聚物或三元共聚物的烯烃树脂组合物的组合，其具有 5至10个碳原子或它们的混合物，（b）5至15重量％的与烯烃树脂组合物相容的低分子量树脂，（c）5至15重量％的丙烯均聚物和（d）0.3 至1.5重量％的聚二有机硅氧烷，在每种情况下相对于可密封的覆盖层的总重量。