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    • 45. 发明授权
    • Process for the preparation of expandable polystyrene
    • 制备可发性聚苯乙烯的方法
    • US09120905B2
    • 2015-09-01
    • US14413452
    • 2013-06-25
    • Ineos Europe AG
    • Jean-Marc Galewski
    • C08J9/20C08J3/22C08J9/04C08J9/12C08J9/14C08J9/00
    • C08J9/141C08J3/22C08J9/0066C08J9/008C08J9/20C08J2201/024C08J2203/14C08J2325/06
    • A process for the preparation of expandable polystyrene (EPS) containing particles of carbon black and/or graphite is disclosed, comprising: (a) forming a masterbatch by adding carbon black and/or graphite to styrene polymer, (b) adding said masterbatch to an organic phase comprising styrene and optional comonomers, and heating the organic phase to a temperature between 30 and 90° C., (c) mixing the organic phase with an aqueous phase comprising water and suspending agents preheated to a temperature between 80 and 120° C. which is higher than the temperature of the organic phase, and (d) polymerizing in a suspension polymerization reaction the styrene and optional comonomers contained in the mixed aqueous and organic phases, with an expanding agent being added before, during or after the polymerization, wherein the styrene polymer in the masterbatch contains at least 1 000 ppm of dimers. The process gives an improved product.
    • 公开了一种制备含有炭黑和/或石墨颗粒的可发性聚苯乙烯(EPS)的方法,包括:(a)通过向苯乙烯聚合物中加入炭黑和/或石墨形成母料,(b)将所述母料加入到 包含苯乙烯和任选的共聚单体的有机相,并将有机相加热至30-90℃的温度,(c)将有机相与包含水的预混合有机相和预热至80℃和120℃之间的混合物混合 (d)在悬浮聚合反应中聚合苯乙烯和混合水相和有机相中任选的共聚单体,在聚合之前,期间或之后加入发泡剂 ,其中母料中的苯乙烯聚合物含有至少1000ppm的二聚体。 该过程提供了改进的产品。
    • 47. 发明申请
    • EXPANDABLE GRANULATES BASED ON VINYL-AROMATIC POLYMERS HAVING AN IMPROVED EXPANDABILITY AND PROCESS FOR THE PREPARATION THEREOF
    • 基于具有改进的可扩展性的乙烯基芳族聚合物的可膨胀的颗粒和其制备方法
    • US20140371335A1
    • 2014-12-18
    • US14473212
    • 2014-08-29
    • POLIMERI EUROPA S.p.A.
    • Riccardo FELISARIDario GHIDONIAntonio PONTICIELLOAlessandro CASALINI
    • C08J9/16C08J9/00
    • C08J9/16C08J9/0066C08J9/008C08J2201/03C08J2203/14C08J2325/04C08J2325/06C08K3/04C08K3/22C08K3/30C08K3/346C08L25/04
    • Expandable granulates, having compositions based on vinyl-aromatic polymers, including: a) 65-99.8% by weight of a copolymer obtained by polymerizing 85-100% by weight of one or more vinyl-aromatic monomers and 0-15% by weight of an α-alkylstyrene in which the alkyl group contains from 1 to 4 carbon atoms; b) 0.01-20% by weight, calculated with respect to the polymer (a), of a carbon black having an average diameter ranging from 10 to 1000 nm and a surface area ranging from 5 to 200 m2/g; c) 0.01-5% by weight, calculated with respect to the polymer (a), of c1) oxides and sulfates and lamellar dichalcogenides of metals; or c2) oxides and sulfates of metals, or c3) lamellar dichalcogenides of metals; or c4) oxides of metals; or c5) sulfates and lamellar dichalcogenides of metals; or c6) sulfates of metals; d) at least one of the following additives d1) and d2): d1) 0.01-5% by weight, calculated with respect to the polymer (a), of graphite having an average diameter ranging from 0.5 to 50 μm; d2) 0.01-5% by weight, calculated with respect to the polymer (a), of inorganic derivatives of silicon of the lamellar type; e) 0-5% by weight, calculated with respect to the polymer (a), of a nucleating agent; and f) 1-6% by weight, calculated with respect to 100 parts of the total of (a)-(e), of one or more expanding agents.
    • 具有基于乙烯基芳族聚合物的组合物的可膨胀颗粒包括:a)65-99.8重量%的通过将85-100重量%的一种或多种乙烯基芳族单体和0-15重量% 其中烷基含有1至4个碳原子的α-烷基苯乙烯; b)相对于聚合物(a)计算的平均直径为10〜1000nm,表面积为5〜200m 2 / g的炭黑为0.01-20重量% c)0.01-5重量%,相对于聚合物(a)计算,c1)金属的氧化物和硫酸盐和层状二硫属元素; 或c2)金属的氧化物和硫酸盐,或c3)金属的层状二硫属化物; 或c4)金属氧化物; 或c5)金属的硫酸盐和层状二硫属元素; 或c6)金属硫酸盐; d)以下添加剂d1)和d2)中的至少一种:d1)0.01-5重量%,相对于聚合物(a)计算,平均直径为0.5〜50μm的石墨; d2)0.01-5重量%,相对于聚合物(a)计算的层状硅的无机衍生物; e)成核剂相对于聚合物(a)计为0-5重量% 和f)1-6重量%,相对于100重量份(a) - (e)的一种或多种发泡剂计算。