利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

61 条记录 (耗时 0.03 秒)

    Process for the preparation of a biaxially oriented polypropylene film
    12.
    发明授权
    Process for the preparation of a biaxially oriented polypropylene film 失效
    制备双轴取向聚丙烯薄膜的方法

    公开(公告)号：US4758396A

    公开(公告)日：1988-07-19

    申请号：US905190

    申请日：1986-09-09

    申请人： Guenther Crass ,  Gunter Schloegl ,  Lothar Bothe ,  Herbert Peiffer

    发明人： Guenther Crass ,  Gunter Schloegl ,  Lothar Bothe ,  Herbert Peiffer

    IPC分类号： C08J3/22 ,  C08J5/18 ,  C08K3/00 ,  B29C47/06 ,  B32B27/08 ,  B32B31/30

    CPC分类号： C08J5/18 ,  C08J3/226 ,  C08K3/0033 ,  C08J2323/12 ,  Y10T428/25 ,  Y10T428/258 ,  Y10T428/259 ,  Y10T428/28 ,  Y10T428/2826 ,  Y10T428/31913

    摘要： A process for the preparation of a biaxially stretch-oriented film having at least one opaque layer is described. The opaque layer is composed essentially of propylene polymer and fillers in a quantity of about 10 to 40% by weight, relative to the total weight of propylene polymer and fillers. In production, the granules are melted in a screw extruder, are forced through a die and are formed by cooling to give a preformed film. The preformed film is then stretch-oriented both along the machine direction and transversely perpendicular to the machine direction and is then heat-set. The fillers are added in the form of a masterbatch to the granules of unfilled polymers. The masterbatch should have a filler content of more than about 30% by weight.

    摘要翻译： 描述了制备具有至少一个不透明层的双轴拉伸取向膜的方法。 相对于丙烯聚合物和填料的总重量，不透明层基本上由丙烯聚合物和填料组成，其量为约10至40重量％。 在生产中，颗粒在螺杆挤出机中熔化，被迫通过模具，并通过冷却形成以得到预成型膜。 然后将预成型薄膜沿机器方向和横向垂直于机器方向拉伸取向，然后热定形。 将填料以母料的形式加入未填充聚合物的颗粒中。 母料应具有大于约30重量％的填料含量。

    High-performance dielectric film with improved thermal stability
    14.
    发明授权
    High-performance dielectric film with improved thermal stability 失效
    具有改进的热稳定性的高性能介质膜

    公开(公告)号：US5085916A

    公开(公告)日：1992-02-04

    申请号：US407942

    申请日：1989-09-15

    申请人： Thomas Wilhelm ,  Gunter Schloegl ,  Lothar Bothe ,  Guenther Crass

    发明人： Thomas Wilhelm ,  Gunter Schloegl ,  Lothar Bothe ,  Guenther Crass

    IPC分类号： B29C55/12 ,  B29K23/00 ,  B29L7/00 ,  C08J5/18 ,  C08K5/09 ,  C08L23/10 ,  H01B3/44 ,  H01B17/60 ,  H01G4/18

    CPC分类号： C08L23/12 ,  C08L23/10 ,  H01B3/441 ,  H01G4/18 ,  C08L23/06 ,  C08L23/0815 ,  C08L23/20 ,  Y10T428/24479 ,  Y10T428/31692 ,  Y10T428/31938

    摘要： The extruded, biaxially oriented dielectric film is composed of high-purity electrical film raw material. It is suitable as electrical insulating film in particular as a dielectric in an electrical capacitor, and exhibits improved dielectric properties for this prupose. The film comprises propylene polymers and stabilizers for the propylene polymers. The raw material of the film has an idealized thermo-oxidation temperature in the range from 260.degree. to 300.degree. C., preferably 260.degree. to 280.degree. C. The dielectric film has an idealized thermo-oxidation temperature of 250.degree. to 300.degree. C., in particular 250.degree. to 280.degree. C. The content of organic neutralizing agents, in particular calcium stearate, in the raw material is less than/equal to 100 ppm.

    摘要翻译： 挤出的双轴取向电介质膜由高纯度电薄膜原料组成。 作为电绝缘膜，特别是作为电容器用电介质的电绝缘膜，适用于该电极的介电性能。 该膜包含用于丙烯聚合物的丙烯聚合物和稳定剂。 膜的原料具有理想的热氧化温度在260℃至300℃，优选260℃至280℃的范围内。电介质膜具有理想的250-300℃的热氧化温度 特别是250〜280℃。原料中有机中和剂，特别是硬脂酸钙的含量小于或等于100ppm。

    Opaque multilayered film having an inherent resistance to delamination
    15.
    发明授权
    Opaque multilayered film having an inherent resistance to delamination 失效
    不透明的多层膜具有固有的分层抗性

    公开(公告)号：US5026592A

    公开(公告)日：1991-06-25

    申请号：US288268

    申请日：1988-12-22

    申请人： Siegfried Janocha ,  Gunter Schloegl ,  Guenther Crass ,  Lothar Bothe

    发明人： Siegfried Janocha ,  Gunter Schloegl ,  Guenther Crass ,  Lothar Bothe

    IPC分类号： B32B27/20

    CPC分类号： B32B27/20 ,  Y10T428/24876 ,  Y10T428/24967 ,  Y10T428/24992 ,  Y10T428/2826 ,  Y10T428/2982 ,  Y10T428/31913

    摘要： Disclosed is an opaque, biaxially stretch-oriented, polyolefinic multilayered film comprising an opaque core layer and two transparent top layers. The core layer contains a mixture of1) about 45 to 90% by weight of a thermoplastic polymer comprising propylene,2) about 5 to 25% by weight of an inert, particulate filler, and3) about 5 to 30% by weight of a hydrocarbon resin being compatible with the thermoplastic polymer and having a softening point in the range from about 100.degree. to 160.degree. C.,the percentages being each time related to the total weight of the mixture. The top layers are free from admixtures comprising particulate filler and resin. The film possesses high resistance to delamination.

    摘要翻译： 公开了一种不透明的双轴拉伸取向的聚烯烃多层膜，其包含不透明芯层和两个透明顶层。 核心层包含1）约45-90％重量的包含丙烯的热塑性聚合物，2）约5至25％重量的惰性颗粒填料和3％约5至30％重量的 烃树脂与热塑性聚合物相容并且软化点在约100至160℃的范围内，百分比每次都与混合物的总重量相关。 顶层没有包含颗粒填料和树脂的混合物。 该片具有很高的分层抵抗力。

    Metallizable multi-ply film
    16.
    发明授权
    Metallizable multi-ply film 失效
    金属化多层膜

    公开(公告)号：US4975315A

    公开(公告)日：1990-12-04

    申请号：US168441

    申请日：1988-03-15

    申请人： Lothar Bothe ,  Gunter Schloegl ,  Guenther Crass ,  Thomas Wilhelm

    发明人： Lothar Bothe ,  Gunter Schloegl ,  Guenther Crass ,  Thomas Wilhelm

    IPC分类号： B32B15/085 ,  B32B27/18 ,  B32B27/20 ,  B32B27/32

    CPC分类号： B32B27/20 ,  B32B27/32 ,  Y10S428/91 ,  Y10T428/24975 ,  Y10T428/25 ,  Y10T428/31507 ,  Y10T428/31692 ,  Y10T428/31743 ,  Y10T428/31746 ,  Y10T428/31797 ,  Y10T428/31902 ,  Y10T428/31913 ,  Y10T428/31917

    摘要： A metallizable, sealable, biaxially stretch-oriented multi-ply film comprises a base layer essentially of polypropylene, a first polyolefinic facing layer and a second polyolefinic facing layer. All of the layers contain a neutralizing agent and a stabilizer against thermal degradation. The neutralizing agent is a calcium carbonate having an absolute particle size of less than 10.0 .mu.m, a mean particle size of less than 0.1 .mu.m, a specific surface area of more than 40 m.sup.2 /g and a whiteness of more than 90% and, the stabilizer comprises a phenolic stabilizer having a molecular weight of more than 1,000 g/mol. One polyolefinic facing layer contains an anti-blocking agent. In addition, a process for producing the metallizable multi-ply film is described, and its use as a packaging material is indicated.

    摘要翻译： 金属化的，可密封的双轴拉伸取向的多层膜包括基本上由聚丙烯，第一聚烯烃面层和第二聚烯烃面层的基层。 所有层都含有中和剂和防止热降解的稳定剂。 中和剂是绝对粒径小于10.0μm，平均粒径小于0.1μm，比表面积大于40m 2 / g，白度大于90％的碳酸钙和 ，稳定剂包括分子量大于1,000g / mol的酚类稳定剂。 一个聚烯烃面层含有防粘连剂。 另外，对金属化多层膜的制造方法进行了说明，作为包装材料使用。

    Polyolefin film having improved mechanical properties
    19.
    发明授权
    Polyolefin film having improved mechanical properties 失效
    聚烯烃膜具有改善的机械性能

    公开(公告)号：US4698261A

    公开(公告)日：1987-10-06

    申请号：US789756

    申请日：1985-10-21

    申请人： Lothar Bothe ,  Guenther Crass

    发明人： Lothar Bothe ,  Guenther Crass

    IPC分类号： B29C55/12 ,  B29K23/00 ,  B29L7/00 ,  B32B27/00 ,  B32B27/20 ,  B32B27/32 ,  B32B3/00

    CPC分类号： B32B27/32 ,  B32B27/20 ,  Y10T428/24876 ,  Y10T428/26 ,  Y10T428/2826 ,  Y10T428/2839 ,  Y10T428/31913 ,  Y10T428/3192

    摘要： An opaque polyolefin film having a three-layer support film and transparent or clear polyolefin covering layers which cover the two surfaces of the support film. In the support film, either the inner layer or the two intermediate layers arranged between the inner layer and the covering layers are composed of a filler-free polyolefin which is modified with a natural or synthetic resin having a softening point ranging from 70.degree. C. to 180.degree. C. The respective non-modified polyolefin layer or layers of the support film have a filler and exhibit a vacuole structure which produces a relatively low density film of less than 0.9 g/cm.sup.3. The production of the opaque polyolefin film comprising five layers is carried out by coextrusion and biaxial stretching, followed by heat setting the coextruded film. The film is advantageously used for packaging purposes.

    摘要翻译： 不透明聚烯烃膜，其具有三层支撑膜和透明或透明的聚烯烃覆盖层，其覆盖支撑膜的两个表面。 在支撑膜中，布置在内层和覆盖层之间的内层或两层中间层由无填料的聚烯烃构成，该聚烯烃用软化点为70℃的天然或合成树脂改性。 相应的非改性聚烯烃层或支撑膜的层具有填料并且显示出液泡结构，其产生小于0.9g / cm 3的相对低密度的膜。 通过共挤出和双轴拉伸进行包括五层的不透明聚烯烃膜的制备，然后热凝固共挤出的膜。 该膜有利地用于包装目的。

    Biaxially oriented opaque polyolefin multi-layer film
    20.
    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

    申请人： Guenther Crass ,  Siegfried Janocha ,  Lothar Bothe

    发明人： Guenther Crass ,  Siegfried Janocha ,  Lothar Bothe

    IPC分类号： B29C55/12 ,  B29K23/00 ,  B29L9/00 ,  B32B27/18 ,  B32B27/32 ,  B65D65/40

    CPC分类号： B32B27/18 ,  B32B27/32 ,  Y10S428/906 ,  Y10T428/24975 ,  Y10T428/258 ,  Y10T428/259 ,  Y10T428/2826 ,  Y10T428/31663 ,  Y10T428/31913

    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。