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    • 21. 发明授权
    • High loading carbon black masterbatch for pressure pipe applications
    • 高负载碳黑色母粒用于压力管应用
    • US08829102B2
    • 2014-09-09
    • US12913350
    • 2010-10-27
    • Santiague PierreAlain ThielenDavide Cammarata
    • Santiague PierreAlain ThielenDavide Cammarata
    • C08K3/04C08L23/06C08J3/22
    • C08J3/226C08J2423/04C08K3/04C08L23/06C08L2310/00
    • A masterbatch for pressure pipe applications is disclosed. The masterbatch includes carbon black in a concentration that is in excess of 40 weight percent (wt %) of the masterbatch, and a high-density polyethylene (HDPE) carrier resin in a concentration that is in the range of 40 to 60 wt % of the masterbatch and has a melt flow index above 100 g/10 min at 2.16 kg/190° C. and a weight average molecular weight (Mw) that is less than 100000. The masterbatch may further include one or more additives (e.g., lubricant and/or an anti-oxidant). In some embodiments, microdispersion of carbon black in the masterbatch is rated less than 3 (according to ISO 18553). In one specific case, 98% or more of observed carbon black agglomerates are less than 30 microns. The masterbatch may be included, for example, in a pressure pipe compound where it is diluted with a base polymer.
    • 公开了用于压力管应用的母料。 母料包含浓度超过母料40重量%(wt%)浓度的炭黑,浓度为40〜60wt%范围内的高密度聚乙烯(HDPE)载体树脂的浓度为 母料,在2.16kg / 190℃下的熔体流动指数高于100g / 10min,重均分子量(Mw)小于100000.母料还可包括一种或多种添加剂(例如润滑剂 和/或抗氧化剂)。 在一些实施方式中,母料中炭黑的微分散度小于3(根据ISO 18553)。 在一个具体情况下,观察到的炭黑附聚物的98%以上小于30微米。 母料可以包括在例如用基础聚合物稀释的压力管道化合物中。
    • 26. 发明申请
    • ELASTOMER COMPOSITE AND METHOD FOR PRODUCING IT
    • 弹性体复合材料及其生产方法
    • US20140045989A1
    • 2014-02-13
    • US14056449
    • 2013-10-17
    • Cabot Corporation
    • Meng-Jiao WangTing WangMichael D. MorrisXuan ZhangMartin C. GreenVijay R. Tirumala
    • C08K3/04
    • C08K3/04C08C1/15C08J3/16C08J3/215C08J3/226C08J2307/02C08J2321/02C08J2407/02C08J2423/00C08K2201/006
    • A method of producing an elastomer composite. The method includes A) combining a first fluid comprising elastomer latex with a second fluid comprising particulate filler; B) causing the elastomer latex to coagulate, thereby forming masterbatch crumb; C) bringing the masterbatch crumb to a water content of about 1 weight percent to about 20 weight percent, thereby forming a dewatered coagulum; D) removing water from the dewatered coagulum by subjecting the dewatered coagulum to mechanical energy, thereby causing the dewatered coagulum to heat as a result of friction, while allowing the dewatered coagulum to achieve a temperature of about 130° C. to about 190° C., wherein water content is reduced to about 0.5% to about 3% and wherein substantially all of the decrease in water content is accomplished by evaporation, thereby producing a masticated masterbatch; and E) subjecting the masticated masterbatch to at least an additional 0.3 MJ/kg of mechanical energy while further reducing the water content.
    • 一种生产弹性体复合材料的方法。 该方法包括:A)将包含弹性体胶乳的第一流体与包含颗粒填料的第二流体组合; B)使弹性体胶乳凝结,从而形成母料屑; C)使母料碎屑的含水量为约1重量%至约20重量%,从而形成脱水凝结物; D)通过使脱水的凝结物进行机械能来从脱水的凝结物中除去水,从而使脱水的凝结物由于摩擦而加热,同时允许脱水的凝结物达到约130℃至约190℃的温度 其中水含量降低至约0.5%至约3%,并且其中基本上所有的水含量的降低都通过蒸发实现,从而产生咀嚼的母料; 和E)使得咀嚼的母料经受至少另外0.3MJ / kg的机械能,同时进一步降低水分含量。