Recycling polyolefins coated with chlorine-containing polymer
    1.
    发明授权
    Recycling polyolefins coated with chlorine-containing polymer 失效
    回收利用含氯聚合物涂覆的聚烯烃

    公开(公告)号:US5286424A

    公开(公告)日:1994-02-15

    申请号:US973858

    申请日:1992-11-09

    IPC分类号: C08J11/06 B29B17/00

    摘要: Recycling polyolefin material, e.g. biaxially oriented polypropylene film, coated with a chlorine-containing polymer, such as polyvinylidene chloride homopolymer and/or copolymer, and having a primer therebetween. First, a caustic solution is formulated containing from about 0.1 wt. % to about 50 wt. % caustic, and from about 0.05 wt. % to about 1.0 wt. % of a wetting agent. The formulated caustic solution is heated to a temperature from about 25.degree. C. to about 140.degree. C. The polyolefin material is soaked in the heated caustic solution until the material is separable from the chlorine-containing polymer. After separating the polyolefin material from the chlorine-containing polymer, the material is reprocessed into desired product by extrusion, molding or other product forming process.

    摘要翻译: 回收聚烯烃材料,例如 双轴取向聚丙烯膜,涂覆有含氯聚合物,如聚偏二氯乙烯均聚物和/或共聚物,并在其间具有底漆。 首先,配制苛性碱溶液,其含有约0.1wt。 %至约50wt。 %苛性碱,和约0.05wt。 %至约1.0wt。 %润湿剂。 将配制的苛性碱溶液加热至约25℃至约140℃的温度。将聚烯烃材料浸泡在加热的苛性碱溶液中,直到该材料与含氯聚合物分离。 在将聚烯烃材料与含氯聚合物分离后,通过挤出,模塑或其它产品形成工艺将材料再加工成所需的产品。

    Reprocessed polyhydroxy amino ether coated polypropylene film
    2.
    发明授权
    Reprocessed polyhydroxy amino ether coated polypropylene film 有权
    再加工多羟基氨基醚涂布聚丙烯薄膜

    公开(公告)号:US07666518B2

    公开(公告)日:2010-02-23

    申请号:US11484589

    申请日:2006-07-12

    IPC分类号: B32B27/00 B32B27/08 B32B15/04

    摘要: This invention relates to a biaxially oriented polypropylene (BOPP) film comprising a polyolefin-containing base layer with at least 1 weight percent recycled polyolefin material comprises polyhydroxy amino ether polymer (PHAE) and an amount of compatibilizing agent such that the laminate film has a gel count of less than 15 gels/80 in2. The laminate film could have an optional tie-layer which could comprise PHAE adhered to one side; the polypropylene film contains an amount of reprocessed PHAE-containing film and a compatibilizing agent to reduce significantly or eliminate visual defects such as gels, voids, etc. The use of the compatibilizing agent with the reprocessed PHAE also aids in improving subsequent biaxial film orientation and maintains film properties. The film of the embodiments of the invention has excellent appearance and aesthetic properties and can be suitable for transparent, white opaque, or metallized film applications depending on formulation.

    摘要翻译: 本发明涉及一种双轴取向聚丙烯(BOPP)膜,其包含含有至少1重量%再循环聚烯烃材料的含聚烯烃的基层,包含多羟基氨基醚聚合物(PHAE)和一定量的相容剂,使得层压膜具有凝胶 小于15凝胶/ 80 in2。 层压膜可以具有可选的粘结层,其可以包含粘附到一侧的PHAE; 聚丙烯薄膜含有一定量的含PHAE的再生膜和相容剂以显着减少或消除诸如凝胶,空隙等的视觉缺陷。相容剂与再加工的PHAE的使用也有助于改进随后的双轴膜取向和 保持胶片性能。 本发明的实施方案的膜具有优异的外观和美学性能,并且可以适用于取决于配方的透明,白色不透明或金属化膜应用。

    Uniaxially shrinkable biaxially oriented polypropylene film
    3.
    发明授权
    Uniaxially shrinkable biaxially oriented polypropylene film 失效
    单轴收缩双轴取向聚丙烯薄膜

    公开(公告)号:US06303233B1

    公开(公告)日:2001-10-16

    申请号:US09055479

    申请日:1998-04-06

    IPC分类号: B32B2732

    摘要: A uniaxially heat-shrinkable, biaxially oriented, multilayer film having a polypropylene-containing core layer containing at least 70 wt. % of the multilayer film and at least one polyolefin-containing skin layer adjacent the core layer is prepared by biaxially orienting a coextrudate and thereafter orienting the coextrudate by stretching 10 to 40% in the machine direction. The core layer contains isotactic polypropylene, a modifier which reduces the crystallinity of the polypropylene-containing core layer and a nucleating agent. Such modifiers include atactic polypropylene, syndiotactic polypropylene, ethylene-propylene copolymer, propylene-butene-1 copolymer, ethylene-propylene-butene-1 terpolymer, and linear low density polyethylene. The nucleating agent improves long term dimensional stability. The skin layer can be high density polyethylene on both sides or high density polyethylene on one side and isotactic polypropylene on the other side.

    摘要翻译: 一种单轴热收缩双轴取向多层膜,其具有含聚丙烯的芯层,其含有至少70wt。 通过双轴取向共挤出物,然后通过在机器方向上拉伸10〜40%来使共挤出物定向,来制备邻近芯层的多层膜和至少一种含聚烯烃的表层。 芯层含有全同立构聚丙烯,其是降低含聚丙烯核心层和成核剂的结晶度的改性剂。 这种改性剂包括无规立构聚丙烯,间同立构聚丙烯,乙烯 - 丙烯共聚物,丙烯 - 丁烯-1共聚物,乙烯 - 丙烯 - 丁烯-1三元共聚物和线性低密度聚乙烯。 成核剂提高长期的尺寸稳定性。 表皮层可以是两侧的高密度聚乙烯,另一侧是高密度聚乙烯,另一面是全同立构聚丙烯。

    Anti-blocking LLDPE films
    5.
    发明授权
    Anti-blocking LLDPE films 失效
    防粘连LLDPE薄膜

    公开(公告)号:US4851478A

    公开(公告)日:1989-07-25

    申请号:US242102

    申请日:1988-09-09

    申请人: Tien-Kuei Su

    发明人: Tien-Kuei Su

    IPC分类号: C08J5/18 C08L23/08 C08L23/16

    摘要: LLDPE films having excellent anti-block properties are disclosed which comprise a blend of LLDPE and vulcanized ethylene-propylene elastomer in the absence of additional antiblock additives, the amount of said vulcanized ethylene-propylene elastomer in said blend being sufficient to result in a film having a blocking force, when measured by ASTM method D-3354, of less than about 100 grams.

    摘要翻译: 公开了具有优异的抗嵌段性能的LLDPE膜,其在不存在另外的抗粘附添加剂的情况下包含LLDPE和硫化乙烯 - 丙烯弹性体的共混物,所述共混物中所述硫化的乙烯 - 丙烯弹性体的量足以导致具有 当通过ASTM方法D-3354测量时,阻塞力小于约100克。

    Polymer blend and method for obtaining same
    6.
    发明授权
    Polymer blend and method for obtaining same 失效
    聚合物共混物及其制备方法

    公开(公告)号:US4673711A

    公开(公告)日:1987-06-16

    申请号:US734434

    申请日:1985-05-16

    IPC分类号: B29C47/00 C08L23/10 C08L25/04

    摘要: A resin composition is disclosed which comprises a blend of from about 40 to about 95 percent by weight thereof of a first polymeric component and from about 50 to about 5 percent by weight thereof of a second polymeric component, the blend being characterized by an interior region containing a disproportionately higher content of first polymeric component and an exterior region containing a disproportionately higher content of second polymeric component, the first polymeric component being selected from the group consisting of amorphous homopolymer of styrene or lower alkyl substituted styrene and amorphous copolymer of styrene and/or alkyl substituted styrene containing up to about 40 weight percent thereof of at least one other olefinic monomer copolymerized therewith and the second polymeric component being selected from the group consisting of crystalline homopolymer of propylene and crystalline copolymer of propylene containing up to about 30 weight percent thereof of at least one other olefinic monomer copolymerized therewith.

    摘要翻译: 公开了一种树脂组合物,其包含约40至约95重量%的第一聚合物组分和约50至约5重量%的第二聚合物组分的共混物,所述共混物的特征在于内部区域 其含有不成比例地较高含量的第一聚合物组分和含有不成比例更高含量的第二聚合物组分的外部区域,所述第一聚合物组分选自苯乙烯的无定形均聚物或低级烷基取代的苯乙烯和苯乙烯和/ 或含有至多约40重量%的至少一个与其共聚的其它烯属单体的烷基取代苯乙烯,第二聚合组分选自丙烯的结晶均聚物和含有至多约30重量%的丙烯的结晶共聚物 至少在 与其共聚的其它烯属单体。

    Method and apparatus producing decorative melt fracture patterns on
polymeric products
    7.
    发明授权
    Method and apparatus producing decorative melt fracture patterns on polymeric products 失效
    在聚合物产品上生产装饰性熔体断裂图案的方法和装置

    公开(公告)号:US4615858A

    公开(公告)日:1986-10-07

    申请号:US734435

    申请日:1985-05-16

    申请人: Tien-Kuei Su

    发明人: Tien-Kuei Su

    IPC分类号: B29C48/30 B29C48/32 B29C47/12

    摘要: Beautifying patterns on the surface of extruded polymer products are produced by forcing molten polymer through a die which is coated with a controlled pattern of low surface energy material. Melt fracture of the polyethylene as it emerges from the die is produced at gaps in the coating material which may be silicon, inorganic or fluorine containing polymers.

    摘要翻译: 在挤出的聚合物产品的表面上美化图案是通过将熔融聚合物强制通过涂覆有受控图形的低表面能材料的模具来制造的。 聚乙烯从模头出来时的熔融断裂是在可能是硅,无机或含氟聚合物的涂层材料的间隙产生的。