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    Compatible linear and branched ethylenic polymers and foams therefrom
    3.
    发明授权
    Compatible linear and branched ethylenic polymers and foams therefrom 有权

    公开(公告)号：US06716914B2

    公开(公告)日：2004-04-06

    申请号：US10454702

    申请日：2003-06-04

    申请人： Nelson E. Malwitz ,  Natarajan S. Ramesh ,  Shau-Tarng Lee

    发明人： Nelson E. Malwitz ,  Natarajan S. Ramesh ,  Shau-Tarng Lee

    IPC分类号： C08F21000

    CPC分类号： C08J9/141 ,  C08J2205/052 ,  C08J2323/02

    摘要： An expanded cellular ethylenic polymer product is provided from an irradiated, noncross-linked linear ethylenic polymer. Linear ethylenic polymers can be irradiated at ambient conditions sufficient to introduce branching in the polymer in the absence of detectable cross-linking as indicated by the absence of gels. The irradiated linear ethylenic polymer is compatible with highly branched low density polyethylene and, when mixed therewith, produces a resin having a single broad based melting temperature range as determined by direct scanning calorimetry, which indicates that the polymers in the mixture have similar crystallization behavior suitable for producing low density foams by extrusion foaming. The linear polymers can be obtained from recycled shrink wrap film. Low densities of from 0.7 to less than 4 pcf can be achieved. The foams typically have improved tear resistance as compared to previous products prepared from low density polyethylene, at comparable low densities.

    Polyolefin/ionomer blend for improved properties in extruded foam products
    4.
    发明授权
    Polyolefin/ionomer blend for improved properties in extruded foam products 有权
    聚烯烃/离聚物共混物，用于改善挤出泡沫产品的性能

    公开(公告)号：US06436521B1

    公开(公告)日：2002-08-20

    申请号：US09406875

    申请日：1999-09-28

    申请人： Shau-Tarng Lee

    发明人： Shau-Tarng Lee

    IPC分类号： B32B326

    CPC分类号： C08J9/0061 ,  C08J2201/03 ,  C08J2323/04 ,  C08J2423/00 ,  Y10T428/15 ,  Y10T428/24273 ,  Y10T428/24471 ,  Y10T428/24504 ,  Y10T428/249953 ,  Y10T428/249981 ,  Y10T428/249991 ,  Y10T428/249992 ,  Y10T428/249993

    摘要： Ionomer present in a polyethylene resin from about 1 to 40% by weight of the resin produces superior extruded foam sheet products that approach the pore size and resiliency of foams prepared from chemical blowing agents. The results can be achieved at normal extrusion rates and on standard extrusion foaming equipment. Tear strength is improved so that collapsible foam packaging products can be produced in which the foam body is cut through except for a surface thereof that remains intact to provide a hinge or joint about which the cut foam bodies can be pivoted.

    摘要翻译： 存在于聚乙烯树脂中的约1至40重量％的树脂的离聚物产生了接近由化学发泡剂制备的泡沫的孔径和弹性的优异的挤出泡沫片材产品。 结果可以在正常挤出速率下和标准挤出发泡设备上实现。 提高撕裂强度，使得可以生产可折叠的泡沫包装产品，其中泡沫体被切割通过，除了其表面保持完整以提供铰链或接头，切割的泡沫体可围绕该铰链或接头枢转。

    Thermoplastic compositions for water soluble foams
    5.
    发明授权
    Thermoplastic compositions for water soluble foams 失效
    水溶性泡沫的热塑性组合物

    公开(公告)号：US5089535A

    公开(公告)日：1992-02-18

    申请号：US601260

    申请日：1990-10-22

    申请人： Nelson E. Malwitz ,  Shau-Tarng Lee

    发明人： Nelson E. Malwitz ,  Shau-Tarng Lee

    IPC分类号： C08J9/00 ,  C08J9/14

    CPC分类号： C08J9/142 ,  C08J9/0061 ,  C08J2329/04

    摘要： Thermoplastic compositions of internally plasticized polyvinyl alcohol material and a low molecular weight alcohol are provided that can be extruded into water soluble biodegradable foams. The compositions can be modified to provide foams that have varying degrees of water solubility and a broad range of physical characteristics.

    摘要翻译： 提供内部增塑的聚乙烯醇材料和低分子量醇的热塑性组合物，其可以挤出成水溶性可生物降解泡沫。 可以对组合物进行改性以提供具有不同程度的水溶性和宽范围的物理特性的泡沫。

    Expandable composition and process for extruded thermoplastic foams
    7.
    发明授权
    Expandable composition and process for extruded thermoplastic foams 失效
    挤出热塑性泡沫的可膨胀组合物和方法

    公开(公告)号：US5348984A

    公开(公告)日：1994-09-20

    申请号：US010275

    申请日：1993-01-28

    申请人： Shau-Tarng Lee

    发明人： Shau-Tarng Lee

    IPC分类号： C08J9/00 ,  C08J9/12 ,  C08J9/08 ,  C08J9/14

    CPC分类号： C08J9/127 ,  C08J9/0023 ,  C08J2203/14 ,  C08J2323/02 ,  Y10S264/05 ,  Y10S521/91

    摘要： An expandable thermoplastic composition is disclosed for extrusion foaming wherein the composition comprises a polyethylene resin; a blowing agent comprising a blend of about 50% by weight of carbon dioxide and about 50% by weight of either normal butane, isobutane, propane, or a mixture of any two or all three hydrocarbons in admixture with the resin in a ratio of about one part blowing agent to about 10 parts resin; zinc oxide nucleation agent in an amount of from about 0.05 to 0.5 kg per 100 kg of the resin; and glycerol monostearate aging modifier in an amount of from about 0.5 to 5 kg per 100 kg of the resin. A process for extrusion foaming of the composition is also disclosed.

    摘要翻译： 公开了用于挤出发泡的可膨胀热塑性组合物，其中组合物包含聚乙烯树脂; 一种发泡剂，其包含约50重量％的二氧化碳和约50重量％的正丁烷，异丁烷，丙烷或任何两种或全部三种与混合树脂的烃的混合物的混合物，其比例约为 一份发泡剂至约10份树脂; 氧化锌成核剂的量为约0.05至0.5kg / 100kg树脂; 和甘油单硬脂酸酯老化改性剂，其量为每100kg树脂约0.5-5kg。 还公开了组合物的挤出发泡方法。

    Compatible linear and branched ethylenic polymers and foams therefrom
    8.
    发明授权
    Compatible linear and branched ethylenic polymers and foams therefrom 有权
    相容的线性和支化烯烃聚合物和泡沫

    公开(公告)号：US06887912B2

    公开(公告)日：2005-05-03

    申请号：US10743645

    申请日：2003-12-22

    申请人： Nelson E. Malwitz ,  Natarajan S. Ramesh ,  Shau-Tarng Lee

    发明人： Nelson E. Malwitz ,  Natarajan S. Ramesh ,  Shau-Tarng Lee

    IPC分类号： C08F2/00 ,  C08J9/14 ,  C08F36/04 ,  C08F136/04 ,  C08F210/00 ,  C08F236/04 ,  C08L23/00

    CPC分类号： C08J9/141 ,  C08J2205/052 ,  C08J2323/02

    摘要： An expanded cellular ethylenic polymer product is provided from an irradiated, noncross-linked linear ethylenic polymer. Linear ethylenic polymers can be irradiated at ambient conditions sufficient to introduce branching in the polymer in the absence of detectable cross-linking as indicated by the absence of gels. The irradiated linear ethylenic polymer is compatible with highly branched low density polyethylene and, when mixed therewith, produces a resin having a single broad based melting temperature range as determined by direct scanning calorimetry, which indicates that the polymers in the mixture have similar crystallization behavior suitable for producing low density foams by extrusion foaming. The linear polymers can be obtained from recycled shrink wrap film. Low densities of from 0.7 to less than 4 pcf can be achieved. The foams typically have improved tear resistance as compared to previous products prepared from low density polyethylene, at comparable low densities.

    摘要翻译： 从照射的非交联的直链烯属聚合物提供膨胀的细胞烯属聚合物产物。 直链烯属聚合物可在不存在可检测的交联作用的情况下在足以引入聚合物中的支化物的环境条件下照射，如不存在凝胶所示。 经辐射的线性烯属聚合物与高度支化的低密度聚乙烯相容，当与其混合时，产生具有通过直接扫描量热法确定的单一宽基熔点温度范围的树脂，这表明混合物中的聚合物具有相似的结晶行为 用于通过挤出发泡生产低密度泡沫。 线性聚合物可以从再循环的收缩包装膜获得。 可实现0.7至小于4 pcf的低密度。 与以低密度聚乙烯制备的以前的产品相比，泡沫通常具有改善的抗撕裂性。

    Foam comprising polyolefin blend and method for producing same
    10.
    发明授权
    Foam comprising polyolefin blend and method for producing same 有权
    包含聚烯烃共混物的泡沫及其制造方法

    公开(公告)号：US6096793A

    公开(公告)日：2000-08-01

    申请号：US219104

    申请日：1998-12-22

    申请人： Shau-Tarng Lee ,  James J. Baker

    发明人： Shau-Tarng Lee ,  James J. Baker

    IPC分类号： C08J9/00 ,  C08J9/14

    CPC分类号： C08J9/0061 ,  C08J9/141 ,  C08J2201/03 ,  C08J2205/052 ,  C08J2323/06 ,  C08J2423/00

    摘要： A foam comprising a blend of a low density polyethylene and an ethylene/alpha-olefin copolymer is disclosed. The ethylene/alpha-olefin copolymer is preferably LLDPE and has a density ranging from about 0.86 to about 0.94 grams/cubic centimeter and a melt flow index of greater than 10 g/10 minutes. A method for producing such foam is also disclosed.

    摘要翻译： 公开了包含低密度聚乙烯和乙烯/α-烯烃共聚物的共混物的泡沫体。 乙烯/α-烯烃共聚物优选为LLDPE，密度范围为约0.86至约0.94克/立方厘米，熔体流动指数大于10g / 10分钟。 还公开了一种生产这种泡沫的方法。