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    • 2. 发明授权
    • Hollow molded articles and process for manufacturing them
    • 中空成型制品及其制造方法
    • US5858491A
    • 1999-01-12
    • US917055
    • 1997-08-22
    • Theo L. V. GeussensHerbert BongartzJozef J. I. Van Dun
    • Theo L. V. GeussensHerbert BongartzJozef J. I. Van Dun
    • C08L23/06C08L23/08B29D22/00B29D23/00
    • C08L23/06C08L2205/02C08L23/0815C08L2314/02C08L2314/06Y10T428/139Y10T428/1397
    • Hollow molded articles prepared from a molding composition comprising:(A) from 95 to 60 percent by weight, based on the weight of (A) and (B), of an ethylene polymer having a density of 0.955 g/cm.sup.3 or higher, a melt index from 0.3 to 10 g/10 min, a melt index ratio I.sub.21 /I.sub.2 of from 40 to 80, and a polydispersity of from 1.8 to 10, the ethylene polymer being selected from the group consisting of i) high density ethylene homopolymers and ii) high density ethylene copolymers prepared by slurry or gas phase polymerization in the presence of a Ziegler or Phillips catalyst or prepared by polymerization in the presence of a transition metal compound catalyst containing a cyclopentadienyl or cyclopentadienyl derivative moiety; and(B) from 5 to 40 percent by weight, based on the weight of (A) and (B), of a homogeneous linear or substantially linear ethylene interpolymer having a density from 0.85 to 0.93 g/cm.sup.3, a melt index from 0.5 to 5 g/10 min, and a polydispersity of from 1.8 to 2.5 , the ethylene interpolymer being an interpolymer of at least ethylene and an .alpha.-olefin;wherein the composition has a density from 0.94 to 0.962 g/cm.sup.3 ;and a process of manufacturing hollow molded articles by molding such composition are claimed.
    • 由模塑组合物制备的中空成型制品,其包含:(A)基于(A)和(B)的重量,95至60重量%的密度为0.955g / cm 3或更高的乙烯聚合物, 熔融指数为0.3至10g / 10min,熔体指数比I21 / I2为40至80,多分散性为1.8至10,乙烯聚合物选自i)高密度乙烯均聚物和 ii)通过浆料或气相聚合在齐格勒或菲利普斯催化剂存在下制备的高密度乙烯共聚物或通过在含有环戊二烯基或环戊二烯基衍生物部分的过渡金属化合物催化剂存在下聚合制备的; 和(B)5-40重量%,基于(A)和(B)的重量,具有0.85至0.93g / cm 3密度的均匀直链或基本线性的乙烯互聚物,熔体指数为0.5 至5g / 10min,多分散性为1.8至2.5,乙烯互聚物为至少为乙烯和α-烯烃的互聚物; 其中所述组合物的密度为0.94至0.962g / cm 3; 要求保护通过模制这种组合物制造中空成型制品的方法。
    • 9. 发明申请
    • Multi-layered resin coated sand
    • 多层树脂涂层砂
    • US20080176009A1
    • 2008-07-24
    • US11900395
    • 2007-09-11
    • Loic F. ChereauJulien H.J.M. DamenHerbert Bongartz
    • Loic F. ChereauJulien H.J.M. DamenHerbert Bongartz
    • B32B27/06B05D3/00A41G1/00
    • C09C3/10C04B20/1029C04B20/1033C04B20/12C04B2111/60C09C1/3072E01C13/08Y02W30/96Y10T428/2998C04B14/06C04B40/0263C04B18/22
    • A method of forming a multi-layer coated particulate material, the method including the steps of: mixing a first thermoplastic polymer with a particulate substrate to form a mixture at a temperature greater than a melting point of the first thermoplastic polymer; cooling the mixture to a temperature below the melting point of the first thermoplastic polymer; combining the cooled mixture with a second thermoplastic polymer, wherein a melting point of the second thermoplastic polymer is less than the temperature of the cooled mixture; and cooling the combined mixture to a temperature less than the melting point of the second polymer. In another aspect, embodiments disclosed herein relate to a particulate material having: a particulate substrate coated with a first layer comprising a first thermoplastic polymer and a second layer comprising a second thermoplastic polymer; wherein a melting point of the first thermoplastic polymer is greater than a melting point of the second thermoplastic polymer.
    • 一种形成多层涂覆的颗粒材料的方法,所述方法包括以下步骤:将第一热塑性聚合物与颗粒基材混合以在大于第一热塑性聚合物的熔点的温度下形成混合物; 将混合物冷却到低于第一热塑性聚合物的熔点的温度; 将冷却的混合物与第二热塑性聚合物组合,其中第二热塑性聚合物的熔点小于冷却的混合物的温度; 并将组合的混合物冷却至低于第二聚合物的熔点的温度。 另一方面,本文公开的实施方案涉及一种颗粒材料,其具有:涂覆有包含第一热塑性聚合物的第一层的颗粒基材和包含第二热塑性聚合物的第二层; 其中所述第一热塑性聚合物的熔点大于所述第二热塑性聚合物的熔点。