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    Expandable composition and process for extruded thermoplastic foams
    3.
    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
    5.
    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
    6.
    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
    7.
    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。

    Foam comprising polyolefin blend and method for producing same
    8.
    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：US06809125B1

    公开(公告)日：2004-10-26

    申请号：US09586493

    申请日：2000-06-02

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

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

    IPC分类号： C08L2308

    CPC分类号： C08L23/06 ,  C08L23/0815 ,  C08L2203/14 ,  C08L2666/06

    摘要： A foam and method for making such foam includes a blend of a low density polyethylene and a higher density ethylene polymer. The ethylene polymer has a density ranging from greater than 0.94 to about 0.97 grams/cubic centimeter and a melt flow index of greater than 10 g/10 minutes, and may include at least one member selected from ethylene/alpha-olefin copolymer, ethylene homopolymer, and blends thereof.

    摘要翻译： 泡沫和制造这种泡沫的方法包括低密度聚乙烯和较高密度乙烯聚合物的共混物。 乙烯聚合物的密度范围大于0.94至约0.97克/立方厘米，熔体流动指数大于10g / 10分钟，并且可包括至少一种选自乙烯/α-烯烃共聚物，乙烯均聚物 ，及其混合物。

    Polyolefin products and process additives therefor having reduced transfer to substrates
    9.
    发明授权
    Polyolefin products and process additives therefor having reduced transfer to substrates 有权
    聚烯烃产品及其加工添加剂具有减少的转移到基材

    公开(公告)号：US06232355B1

    公开(公告)日：2001-05-15

    申请号：US09614499

    申请日：2000-07-11

    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： C08J900

    CPC分类号： C08K5/103 ,  C08J9/0023 ,  C08J9/0028 ,  C08J9/141 ,  C08J2203/14 ,  C08J2323/02 ,  C08K5/20 ,  Y10S516/915 ,  C08L23/02

    摘要： A process additive for polyolefin films and foams produces products having reduced aging time and reduced greasiness and reduced grease-like transfer as compared to glycerol monostearate (GMS). Carbon dioxide based blowing agents are suitable. The process additive comprises a fatty acid N-aliphatic alcohol amide of the general formula R—CON(R′)R″. R is a fatty hydrocarbon radical having from about 8 to 30 carbons. R′ typically is hydrogen. R′ can also be an alkyl radical of from about 1 to 6 carbons or an alkyl alcohol radical of from about 1 to 6 carbons. R″ is an alkyl alcohol fragment of from about 1 to 6 carbons. The alkyl alcohol fragments can be monohydric or polyhydric. Secondary fatty monoalkanolamides in which R′ is hydrogen are particularly useful, especially stearamide monoethanolamine (MEA). The benefits of the invention can be achieved and enhanced in some examples by mixing the fatty acid N-aliphatic alcohol amide with an ester of a long chain fatty acid with a polyhydric alcohol, including GMS. Examples of fatty acid N-aliphatic alcohol amides include cocamide MEA, lauramide monoisopropylamine (MIPA), oleamide MIPA, and stearamide 2,3-propanediol.

    摘要翻译： 与甘油单硬脂酸酯（GMS）相比，用于聚烯烃膜和泡沫的工艺添加剂产生具有减少的老化时间和减少的油脂并减少类似脂肪的转移的产物。 二氧化碳基发泡剂是合适的。 加工添加剂包括通式为R-CON（R'）R“的脂肪酸N-脂族醇酰胺。 R是具有约8至30个碳的脂肪烃基。 R'通常是氢。 R'也可以是约1至6个碳的烷基或约1至6个碳的烷基醇基团。 R“是约1至6个碳的烷基醇片段。 烷基醇片段可以是一元或多元。 其中R'是氢的二级脂肪单烷醇酰胺特别有用，特别是硬脂酰胺单乙醇胺（MEA）。 通过将脂肪酸N-脂肪醇酰胺与长链脂肪酸的酯与多元醇（包括GMS）混合，可以在一些实施例中实现和增强本发明的益处。 脂肪酸N-脂肪醇酰胺的实例包括椰油酰胺MEA，月桂酰胺单异丙胺（MIPA），油酰胺MIPA和硬脂酰胺2,3-丙二醇。

    Polyolefin products and process additives therefor having reduced transfer to substrates
    10.
    发明授权
    Polyolefin products and process additives therefor having reduced transfer to substrates 有权

    公开(公告)号：US6156813A

    公开(公告)日：2000-12-05

    申请号：US414397

    申请日：1999-10-07

    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： C08K5/103 ,  C08K5/20 ,  C08J9/00 ,  C08J9/12 ,  C08J9/14

    CPC分类号： C08K5/103 ,  C08J9/0023 ,  C08J9/0028 ,  C08J9/141 ,  C08K5/20 ,  C08J2203/14 ,  C08J2323/02 ,  Y10S516/915

    摘要： A process additive for polyolefin films and foams produces products having reduced aging time and reduced greasiness and reduced grease-like transfer as compared to glycerol monostearate (GMS). Carbon dioxide based blowing agents are suitable. The process additive comprises a fatty acid N-aliphatic alcohol amide of the general formula R-CON(R')R". R is a fatty hydrocarbon radical having from about 8 to 30 carbons. R' typically is hydrogen. R' can also be an alkyl radical of from about 1 to 6 carbons or an alkyl alcohol radical of from about 1 to 6 carbons. R" is an alkyl alcohol fragment of from about 1 to 6 carbons. The alkyl alcohol fragments can be monohydric or polyhydric. Secondary fatty monoalkanolamides in which R' is hydrogen are particularly useful, especially stearamide monoethanolamine (MEA). The benefits of the invention can be achieved and enhanced in some examples by mixing the fatty acid N-aliphatic alcohol amide with an ester of a long chain fatty acid with a polyhydric alcohol, including GMS. Examples of fatty acid N-aliphatic alcohol amides include cocamide MEA, lauramide monoisopropylamine (MIPA), oleamide MIPA, and stearamide 2,3-propanediol.