Isocyanate, Diisocyanate and (Meth) Acrylate Compounds for Minimizing Scorch and Diisocyanate Compounds for Promoting Cure in Crosslinkable Compositions
    64.
    发明申请
    Isocyanate, Diisocyanate and (Meth) Acrylate Compounds for Minimizing Scorch and Diisocyanate Compounds for Promoting Cure in Crosslinkable Compositions 审中-公开
    用于最小化焦化和二异氰酸酯化合物的异氰酸酯,二异氰酸酯和(甲基)丙烯酸酯化合物,用于促进可交联组合物中的固化

    公开(公告)号:US20100120955A1

    公开(公告)日:2010-05-13

    申请号:US12529494

    申请日:2008-03-11

    IPC分类号: C08K5/29 C08K5/10

    摘要: Thermally activated, free-radical initiator-containing polymer compositions comprise a (i) free radical initiator, (ii) free radical crosslinkable polymer, (iii) scorch inhibiting amount and/or a cure-boosting amount of at least one of isocyanate, diiso-cyanate, e.g., MDI, or hydroxyalkyl(meth)acrylate compound, e.g., hydroxyethyl(meth)acrylate, and, optionally, (iv) other scorch retardants and/or cure boosters, e.g., a TEMPO compound, a hindered phenol, alpha-methyl styrene dimer, etc. The free radical initiator can be any thermally activated compound that is relatively unstable and easily breaks into at least two radicals, e.g., a peroxide or azo initiator. The crosslinkable polymer is a thermoplastic and/or elastomeric polymer that can be crosslinked (cured) through the action of a crosslinking agent, e.g., LDPE. The isocyanate, diisocyanate and (meth)acrylate scorch inhibitors and/or cure boosters can be used alone, or in combination with one another, or, optionally, in combination with a TEMPO compound, e.g., 4-hydroxy-TEMPO.

    摘要翻译: 热活化的含自由基引发剂的聚合物组合物包含(i)自由基引发剂,(ii)自由基交联聚合物,(iii)焦化抑制量和/或固化促进量的至少一种异氰酸酯,二异氰酸酯 - 氰酸酯,例如MDI或(甲基)丙烯酸羟烷基酯化合物,例如(甲基)丙烯酸羟乙酯,和任选的(iv)其它焦烧延迟剂和/或固化促进剂,例如TEMPO化合物,受阻酚,α 甲基苯乙烯二聚体等。自由基引发剂可以是任何相对不稳定的热活化化合物,并且易于分解成至少两个基团,例如过氧化物或偶氮引发剂。 可交联聚合物是可以通过交联剂例如LDPE的作用进行交联(固化)的热塑性和/或弹性聚合物。 异氰酸酯,二异氰酸酯和(甲基)丙烯酸酯焦化抑制剂和/或固化促进剂可以单独使用或彼此组合使用,或任选与TEMPO化合物如4-羟基-TEMPO组合使用。

    Blends of ethylenic polymers with improved modulus and melt strength and articles fabricated from these blends
    66.
    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:US06545094B2

    公开(公告)日:2003-04-08

    申请号:US09927908

    申请日:2001-08-09

    IPC分类号: C08L3302

    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)−0.6476 and B=16.882*(I2)−0.6564; 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I2; 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; I2是混合物的测量熔体指数; f是混合物中线性聚乙烯的重量分数,FMS是> = 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。

    Acoustical insulation foams
    68.
    发明授权
    Acoustical insulation foams 失效
    隔音泡沫

    公开(公告)号:US06369120B1

    公开(公告)日:2002-04-09

    申请号:US09689926

    申请日:2000-10-12

    IPC分类号: C08J920

    摘要: An acoustical insulation foam having, either with or without elastification, an Asker C hardness of less than about 65, a density of about 5 to about 150 kg/m3, a cell size of about 0.05 to about 15 mm, an open cell content of 0 to about 100 volume percent, a thickness of about 1 to about 200 mm, and a width of about 100 to about 3000 mm; comprising; (A) one or more alkenyl aromatic polymers, (B) one or more substantially random interpolymers and (C) optionally, one or more nucleating agents and (D) optionally, one or more other additives; and (E) one or more blowing agents.

    摘要翻译: 一种绝缘泡沫,具有或不具有弹性,具有小于约65的Asker C硬度,约5至约150kg / m 3的密度,约0.05至约15mm的孔尺寸,开孔含量 0至约100体积%,厚度为约1至约200mm,宽度为约100至约3000mm; (A)一种或多种链烯基芳族聚合物,(B)一种或多种基本上无规共聚体和(C)任选的一种或多种成核剂和(D)任选的一种或多种其它添加剂; 和(E)一种或多种发泡剂。

    Foams comprising HFC-134 and a low solubility co-blowing agent and a process for making
    70.
    发明授权
    Foams comprising HFC-134 and a low solubility co-blowing agent and a process for making 失效
    包含HFC-134和低溶解度共发泡剂的泡沫及其制造方法

    公开(公告)号:US06225364B1

    公开(公告)日:2001-05-01

    申请号:US09581337

    申请日:2000-08-01

    IPC分类号: C08J912

    摘要: Disclosed is an extruded, dimensionally stable, closed cell alkenyl aromatic polymer foam. The foam comprises an alkenyl aromatic polymer material greater than 50 percent by weight of alkenyl aromatic monomeric units. The foam has a density of about 16 to about 64 kilograms per cubic meter. The foam has a thickness in cross section of 15 millimeters or more. The foam has a blowing agent composition comprising a primary blowing agent of about 70 to about 95 weight percent 1,1,2,2-tetrafluoroethane and a secondary blowing agent comprising about 30 to about 5 weight percent based upon the total moles of the blowing agent composition. The secondary blowing agent being selected from the group consisting essentially of 1,1,1,2-tetrafluoroethane, carbon dioxide, nitrogen, argon, and water. Further disclosed is a process for making the foam.

    摘要翻译: 公开了挤出的,尺寸稳定的闭孔烯基芳族聚合物泡沫。 泡沫体包含大于50重量%链烯基芳族单体单元的烯基芳族聚合物材料。 泡沫的密度约为16至64千克每立方米。 泡沫的横截面厚度为15毫米以上。 泡沫体具有发泡剂组合物,其包含约70至约95重量%的1,1,2,2-四氟乙烷的初始发泡剂和包含基于吹塑的总摩尔数的约30至约5重量%的二次发泡剂 代理成分。 二次发泡剂选自基本上由1,1,1,2-四氟乙烷,二氧化碳,氮气,氩气和水组成的组。 另外公开了制造泡沫的方法。