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    Resin compositions for extrusion coating
    1.
    发明申请
    Resin compositions for extrusion coating 有权
    用于挤出涂层的树脂组合物

    公开(公告)号：US20060281866A1

    公开(公告)日：2006-12-14

    申请号：US10566937

    申请日：2004-09-03

    申请人： Thomas Oswald ,  James Cooper ,  Jeffrey Weinhold ,  David Gilluspie

    发明人： Thomas Oswald ,  James Cooper ,  Jeffrey Weinhold ,  David Gilluspie

    IPC分类号： C08L23/04

    CPC分类号： C09D123/08 ,  C08J5/18 ,  C08J2300/00 ,  C08J2323/06 ,  C08L23/06 ,  C08L23/08 ,  C08L23/0815 ,  C09D123/06 ,  C08L2666/06

    摘要： A composition is disclosed which is particularly suited for use in extrusion coating. The composition comprises a polymeric material having a rheology such that the slope S of a natural log-natural log plot of loss modulus (or G″) versus storage modulus (or G′) is greater than [0.635*(melt index)+13.2]/[(melt index)+16.6], and wherein the polymeric material has a CDF RI fraction less than 0.23 of a GPC chromatogram which has a molecular weight above 85,000 g/mol, and a CDF LS fraction of more than 0.07 at a conventional GPC molecular weight of 1,750,000 g/mol or greater. The compositions exhibit reduced neck-in when used in extrusion coating and the neck-in is independent of melt strength, thereby facilitating improved extrusion processes.

    摘要翻译： 公开了一种特别适用于挤出涂层的组合物。 该组合物包含具有流变性的聚合材料，使得损耗模量（或G“）对储能模量（或G'）的自然对数 - 自然对数图的斜率S大于[0.635 *（熔体指数）+ 13.2] / [（熔体指数）+16.6]，其中聚合物材料的CDF RI分数小于0.23的GPC色谱图，其分子量高于85,000g / mol，CDF LS分数大于0.07 常规GPC分子量为1750,000g / mol以上。 当用于挤出涂布时，组合物显示减少的颈缩，并且颈缩不依赖于熔体强度，从而有助于改进挤出工艺。

    Blends of ethylenic polymers with improved modulus and melt strength and articles fabricated from these blends
    2.
    发明授权
    Blends of ethylenic polymers with improved modulus and melt strength and articles fabricated from these blends 有权
    具有改进的模量和熔体强度的乙烯类聚合物的共混物和由这些共混物制成的制品

    公开(公告)号：US06723793B2

    公开(公告)日：2004-04-20

    申请号：US10350564

    申请日：2003-01-24

    申请人： Thomas Oswald ,  Bharat I. Chaudhary ,  Jeffrey Weinhold

    发明人： Thomas Oswald ,  Bharat I. Chaudhary ,  Jeffrey Weinhold

    IPC分类号： C08L2306

    CPC分类号： C08L23/0815 ,  C08L23/02 ,  C08L2205/02 ,  C08L2207/07 ,  C08L2666/04

    摘要： A blend which comprises; A) a heterogeneous or homogenous linear ethylene homopolymer or interpolymer; B) a branched homopolymer or interpolymer; wherein said blend has; 1) a melt index, I2, of about 0.05 to about 20 g/10 min; 2) a flexural modulus of ≧100,000 psi or ≦30,000 psi; 3) a melt strength of ≧2 cN; 4) a melt extensibility of ≧25 mm/sec; and 5) wherein said melt strength of said blend meets the following relationship; Melt strength≧FMS*[(f*A)+((1−f)*B)]; where: A=3.3814*(I2)−06476 and B=16.882*(I2)−06564; where I2 is the measured melt index of the blend; f is the weight fraction of the linear polyethylene in the blend and FMS is ≧1.1. Also included in the present invention are foams, films, fibers, blow molded articles, wire and cable articles and extrusion coatings comprising said blend.

    摘要翻译： 一种共混物，其包含：A）非均相或均匀的线性乙烯均聚物或互聚物; B）支化均聚物或互聚物;其中所述共混物具有：1）约0.05至约20g / 10min的熔体指数I 2; 2 ）≥100000psi或<= 30,000PSI的挠曲模量; 3）≥2cN的熔体强度; 4）> 25mm / sec的熔体延展性; 和5）其中所述共混物的熔体强度满足以下关系：其中：A = 3.3814 *（I2）< - 06476>和B = 16.882 *（I2）< - 06564>; 其中I 2是混合物的测量熔体指数; f是共混物中线性聚乙烯的重量分数，FMS = 1.1。本发明还包括泡沫，膜，纤维，吹塑制品，电线和电缆制品以及包含所述共混物的挤出涂层。