Transparent polypropylene film for candy twist wrapping
    23.
    发明授权
    Transparent polypropylene film for candy twist wrapping 失效
    透明聚丙烯薄膜用于糖果扭曲包装

    公开(公告)号:US4786533A

    公开(公告)日:1988-11-22

    申请号:US915083

    申请日:1986-10-03

    IPC分类号: B32B27/32 B65D75/10 B32B27/00

    摘要: A transparent propylene polymer film, produced by coextrusion and coated on one or both sides, for candy twist wrapping, wherein the propylene polymer base layer additionally contains a low molecular hydrocarbon resin in an amount of 10 to 40% by weight, based on the total weight of propylene polymer and resin, the base layer has a modulus of elasticity of not less than 3,000 N/mm.sup.2, measured in both directions of molecular orientation, and each top layer contains a polydialkylsiloxane in an amount of 0.3 to 1.5% by weight, based on the weight of the top layer.

    摘要翻译: 一种透明丙烯聚合物膜,通过共挤出制成并涂覆在一面或两面上,用于糖果扭曲缠绕,其中丙烯聚合物基层另外含有10至40重量%的低分子量烃树脂,基于总计 丙烯聚合物和树脂的重量,基层在分子取向的两个方向上测量的弹性模量不小于3,000N / mm 2,并且每个顶层含有0.3至1.5重量%的聚二烷基硅氧烷, 基于顶层的重量。

    Non-sealable, biaxially oriented multi-layer polypropylene film
    24.
    发明授权
    Non-sealable, biaxially oriented multi-layer polypropylene film 失效
    不可密封的双轴取向多层聚丙烯薄膜

    公开(公告)号:US4725466A

    公开(公告)日:1988-02-16

    申请号:US863447

    申请日:1986-05-15

    IPC分类号: B32B27/32 B65D65/40 B32B31/16

    摘要: A non-sealable polypropylene multi-layer film comprises a base layer and at least one covering layer, the base layer as wella as the covering layer or layers being formed of propylene homopolymers. The covering layers contain a combination of additives composed of (a) from 0.2 to 1.0% by weight of a long-chain aliphatic amine, (b) from 0.2 to 1.0% by weight of a polydialkylsiloxane, and (c) from 0.1 to 1.0% by weight of a platelet-shaped inorganic pigment, the platelets of the pigments being disposed substantially parallel to the surface of the covering layer. The film is preferably produced by a coextrusion process. It is preferably used as a laminating film, an interleaving film or a metallizable film. The novel non-sealable polypropylene multi-layer film has, in particular, good anti-blocking and slip properties, good optical properties, good antistatic properties, and a high scratch resistance. The film can be subjected to a corona treatment without thereby adversely influencing its properties.

    摘要翻译: 不可密封的聚丙烯多层膜包括基底层和至少一个覆盖层,基底层以及由丙烯均聚物形成的覆盖层。 覆盖层包含由(a)0.2-1.0重量%的长链脂族胺组成的添加剂组合,(b)0.2-1.0重量%的聚二烷基硅氧烷,和(c)0.1至1.0重量% 重量%的片状无机颜料,所述颜料的小片基本上平行于覆盖层的表面设置。 膜优选通过共挤出方法制备。 优选用作层压膜,交织膜或金属化膜。 该新颖的不可密封聚丙烯多层膜特别具有良好的防粘连和滑动性能,良好的光学性能,良好的抗静电性能和高耐擦伤性。 该膜可以进行电晕处理,而不会不利地影响其性能。

    Biaxially oriented opaque polyolefin multi-layer film
    25.
    发明授权
    Biaxially oriented opaque polyolefin multi-layer film 失效
    双轴取向不透明聚烯烃多层膜

    公开(公告)号:US4983447A

    公开(公告)日:1991-01-08

    申请号:US95448

    申请日:1987-09-11

    摘要: An opaque polyolefin film having a base layer composed essentially of propylene polymers and having sealing layers present on both sides, composed essentially of sealable olefin polymers, is disclosed. From about 0.2% to 1.5% by weight, relative to the layer of polydialkylsiloxane is incorporated in one of the two sealing layers, and this layer has not been subjected to corona treatment. The other sealing layer has been subjected to corona treatment and has polydialkylsiloxane, not incorporated, but present on the outer surface of this layer, the polydialkylsiloxane having been transferred to this layer by contact between the sealing layer in which polydialkylsiloxane is incorporated. The relative polydialkylsiloxane occupancy of this layer, which is determined by means of ESCA spectroscopy, is not more than 15. The three-layer opaque polyolefin film is prepared by the coextrusion process. It is particularly suitable for use as a packaging film on high-speed packaging machines.

    摘要翻译: 公开了一种不透明聚烯烃膜,其具有基本上由丙烯聚合物组成并具有基本上由可密封的烯烃聚合物组成的两侧上的密封层的基层。 相对于聚二烷基硅氧烷层,约0.2重量%至1.5重量%掺入两个密封层之一中,该层未进行电晕处理。 另一个密封层已进行电晕处理,并且具有未加入的聚二烷基硅氧烷,但存在于该层的外表面上,聚二烷基硅氧烷通过其中掺入聚二烷基硅氧烷的密封层之间的接触转移到该层。 通过ESCA光谱法测定的该层的相对聚二烷基硅氧烷占有率不超过15.三层不透明聚烯烃膜通过共挤出法制备。 特别适用于高速包装机上的包装薄膜。

    Biaxially oriented polyolefin multi-layer film
    26.
    发明授权
    Biaxially oriented polyolefin multi-layer film 失效
    双轴取向聚烯烃多层膜

    公开(公告)号:US4734317A

    公开(公告)日:1988-03-29

    申请号:US836321

    申请日:1986-03-05

    摘要: A polyolefin film having a base layer composed essentially of propylene polymers and having sealing layers present on both sides, composed essentially of sealable olefin polymers. Polydialkylsiloxane is incorporated in a first of the two sealing layers, and this layer is not subjected to corona treatment. The second sealing layer is subjected to corona treatment and has polydialkylsiloxane, not incorporated, but present on its outer surface, the polydialkylsiloxane having been transferred to this layer by contact with the sealing layer in which polyidalkylsiloxane is incorporated. The relative polydialkylsiloxane occupancy on the second layer, which is determined by means of ESCA spectroscopy, is not more than 15. The three-layer polyolefin film is prepared by a coextrusion process. It is particularly suitable for use as a packaging film on high-speed packaging machines.

    摘要翻译: 一种聚烯烃膜,其基本层基本上由丙烯聚合物组成并且具有基本上由可密封的烯烃聚合物组成的两侧上存在的密封层。 聚二烷基硅氧烷被引入到两个密封层中的第一个中,该层不经过电晕处理。 第二密封层进行电晕处理,并且具有未加入的聚二烷基硅氧烷,但存在于其外表面上,聚二烷基硅氧烷通过与其中掺入聚烷基硅氧烷的密封层接触而转移到该层。 通过ESCA光谱法确定的第二层上的相对聚二烷基硅氧烷占有率不超过15.三层聚烯烃膜通过共挤出法制备。 特别适用于高速包装机上的包装薄膜。

    Process for producing polyester film containing a slip agent
    27.
    发明授权
    Process for producing polyester film containing a slip agent 失效
    含有滑爽剂的聚酯薄膜的制造方法

    公开(公告)号:US4921670A

    公开(公告)日:1990-05-01

    申请号:US218140

    申请日:1988-07-13

    摘要: A process is described for the production of an oriented, heat-set polyester film including an admixture of polydiorganosiloxane in the amount of 0.001 to 2% by weight, as well as further additives, such as inert inorganic and/or organic particles. The thermoplastic material is melted in an extruder and extruded through an appropriate die to give a cast film, is then quenched, reheated, stretch oriented, and heat set. The characteristic criteria is the addition of the polydiorganosiloxane to the polydiorganosiloxane-free polyester in the form of a masterbatch.

    摘要翻译: 描述了一种制备定向的热固性聚酯薄膜的方法,该聚酯薄膜包括0.001至2重量%的聚二有机硅氧烷的混合物,以及其它添加剂,如惰性无机和/或有机颗粒。 将热塑性材料在挤出机中熔融并通过适当的模头挤出以得到流延膜,然后淬火,再加热,拉伸取向和热定形。 特征标准是将聚二有机硅氧烷以母料的形式加入到不含聚二有机硅氧烷的聚酯中。

    Multilayer packaging film having superior scratch resistance
    29.
    发明授权
    Multilayer packaging film having superior scratch resistance 失效
    多层包装膜具有优异的耐擦伤性

    公开(公告)号:US4734318A

    公开(公告)日:1988-03-29

    申请号:US927163

    申请日:1986-11-05

    IPC分类号: B32B27/32 B32B27/08

    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。