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    • 33. 发明授权
    • Rubber composition for geothermal application
    • 用于地热应用的橡胶组合物
    • US4575522A
    • 1986-03-11
    • US709514
    • 1985-03-07
    • William D. BreachEdwin W. Vaclavik
    • William D. BreachEdwin W. Vaclavik
    • C08K3/04C08K5/14C08K5/39C08J3/24C08K5/13
    • C08K5/14C08K3/04C08K5/13C08K5/39
    • A composition for use in geothermal or high temperature and steam applications of ethylene-propylene copolymer with peroxide generated carbon to carbon crosslinkage. Effective amounts of antioxidants, carbon black, lubricant, thermal stabilizer and aid to peroxide crosslinkage is added. An antioxidant and thermal stabilizer system is used to produce a product with unusual thermal stability characteristics. The composition also has a mixture of high and low particle size carbon black which act as an antioxidant and reinforcing system. The composition can be used for rubber components in geothermal drilling for pipe protectors, valve seals and other products which are exposed to a high temperature and steam saturated environment.
    • 一种用于地热或高温和蒸汽应用的组合物,乙烯 - 丙烯共聚物与过氧化物产生碳与碳交联。 加入有效量的抗氧化剂,炭黑,润滑剂,热稳定剂和助剂过氧化物交联。 使用抗氧化剂和热稳定剂体系来生产具有不寻常热稳定性特征的产品。 该组合物还具有高和低粒度炭黑的混合物,其作为抗氧化剂和增强体系。 该组合物可用于地热钻井用于管道保护器,阀门密封件和暴露于高温和蒸汽饱和环境的其他产品的橡胶部件。
    • 39. 发明授权
    • Cured or uncured chlorinated polyethylene composition and process for
curing uncured chlorinated polyethylene
    • 固化或未固化的氯化聚乙烯组合物和固化未固化的氯化聚乙烯的方法
    • US4165416A
    • 1979-08-21
    • US781300
    • 1977-03-25
    • Yasuo MatobaAkira HashimotoMikio Sugahara
    • Yasuo MatobaAkira HashimotoMikio Sugahara
    • C08K5/17C08K5/39C08K5/37C08J3/24
    • C08K5/17C08K5/39
    • A cured or uncured chlorinated polyethylene composition free from hexamethylphosphoric triamide complex comprising (A) chlorinated polyethylene, (B) a mercaptotriazine as cross-linking agent, (C) a cross-linking accelerator selected from the group consisting of specified dithiocarbamic compounds, secondary and tertiary amines, and the carboxylates, mercaptothiazole salts, dithiocarbamates and dithiophosphates of said secondary and tertiary amines and the benzothiazylsulfenamides of said secondary amines, and (D) an acid acceptor of metal compounds; as well as a process for curing uncured chlorinated polyethylene which comprises heating same in the absence of hexamethylphosphoric triamide complex in the presence of (B), (C) and (D) at a temperature of about 120.degree. to about 200.degree. C.
    • 不含六甲基磷酰三胺络合物的固化或未固化的氯化聚乙烯组合物,其包含(A)氯化聚乙烯,(B)巯基三嗪作为交联剂,(C)交联促进剂,选自指定的二硫代氨基甲酸酯化合物,仲和 叔胺和所述仲胺和所述仲胺的苯并噻唑基亚磺酰胺的羧酸盐,巯基噻唑盐,二硫代氨基甲酸盐和二硫代磷酸盐,和(D)金属化合物的酸受体; 以及用于固化未固化的氯化聚乙烯的方法,该方法包括在(B),(C)和(D)的存在下,在约120℃至约200℃的温度下,在不存在六甲基磷酰三胺酰胺配合物的情况下对其进行加热。