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    • 22. 发明授权
    • Methods and compositions for styrene inhibition via in situ generation of quinone methides
    • 通过原位生成醌甲基化物进行苯乙烯抑制的方法和组合物
    • US08901362B2
    • 2014-12-02
    • US13364554
    • 2012-02-02
    • John Link
    • John Link
    • C07C7/20
    • C07C7/20C08F2/40C08F12/08C07C15/46
    • Methods and compositions are provided for inhibiting the polymerization of a vinyl aromatic monomer, such as styrene monomer, during elevated temperature processing or distillation thereof or during storage or shipment of polymer containing product. The compositions include a combination of a hydroxybenzyl alcohol (1) and a dehydration catalyst (2). The combination is added to a vinyl aromatic monomer. Typically, the hydroxybenzyl alcohol is dehydrated in the styrene solution by the use of a strong acid catalyst acting as the dehydration catalyst, and the resultant reaction product is a quinone methide styrene inhibitor.
    • 提供了用于在高温处理或蒸馏期间或在含聚合物的产品的储存或运输过程中抑制乙烯基芳族单体如苯乙烯单体聚合的方法和组合物。 组合物包括羟基苄醇(1)和脱水催化剂(2)的组合。 将该组合物加入到乙烯基芳族单体中。 通常,通过使用充当脱水催化剂的强酸催化剂,苯乙烯溶液中羟基苄醇脱水,得到的反应产物是醌甲基苯乙烯抑制剂。
    • 23. 发明申请
    • METHODS AND COMPOSITIONS FOR INHIBITING POLYSTYRENE FORMATION DURING STYRENE PRODUCTION
    • 在苯乙烯生产过程中抑制聚苯乙烯形成的方法和组合物
    • US20130072729A1
    • 2013-03-21
    • US13235004
    • 2011-09-16
    • John LinkMike Hong
    • John LinkMike Hong
    • C07C7/20C09K3/00
    • C07C7/20C07C7/05C07C17/42C08F12/08C08F2/40C07C15/46C07C15/44C07C25/28
    • Methods and compositions are provided for inhibiting the polymerization of a vinyl aromatic monomer, such as styrene monomer, during elevated temperature processing or distillation thereof. The compositions comprise an inhibitor combination of (A) a hydroxylamine and (B) a stable free radical plus a retarder that is either; (C) dinitrobutylphenol or (D) quinone methide. The ratio of (A) to (B) ranges from about 5% (A) to 95% (B) to about 95% (A) to about 5% (B). The compositions are added to the vinyl aromatic monomer in amounts sufficient to prevent polymerization during the distillation process. Typically the inhibitor combination is added to the vinyl aromatic monomer in an amount ranging from about 10 to 150 ppm of the monomer. Retarders are typically added in an amount ranging from 50 to 1500 ppm of the vinyl aromatic monomer.
    • 提供了用于在高温处理或蒸馏期间抑制乙烯基芳族单体如苯乙烯单体的聚合的方法和组合物。 组合物包含(A)羟胺和(B)稳定的自由基加上缓凝剂的抑制剂组合; (C)二硝基丁基苯酚或(D)醌甲基化物。 (A)至(B)的比例为约5%(A)至95%(B)至约95%(A)至约5%(B)。 将组合物以足以防止在蒸馏过程中聚合的量加入到乙烯基芳族单体中。 通常将抑制剂组合物加入到单体约10至150ppm范围内的乙烯基芳族单体中。 通常,乙烯基芳族单体的加入量通常为50〜1500ppm。
    • 30. 发明授权
    • Cleaning apparatus and method
    • 清洗装置及方法
    • US4548001A
    • 1985-10-22
    • US264393
    • 1981-05-18
    • John Link
    • John Link
    • B24C7/00
    • B24C7/0007
    • Cleaning apparatus employing an abrasive laden water jet including a tank for water and abrasive, an eductor in the tank to one inlet of which a water supply is connected and another inlet of which is open to the water abrasive mixture, a mechanism, which may be the eductor, to fluidize the abrasive in the water in the tank, a line from the outlet of the eductor to a working nozzle which is supplied with water and abrasive mixture by the action of the water supply in the eductor, and a high pressure water line adjacent the nozzle to increase the velocity of flow of the mixture from the nozzle.
    • 使用包含水和研磨剂的罐的磨料含水喷射器的清洁装置,在罐中的喷射器,其中一个入口连接供水并且另一个入口与水磨料混合物开口,该机构可以是 喷射器使溶剂在罐中的水中流动,从喷射器的出口到工作喷嘴的管线,其通过喷射器中的水供应的作用被供应水和研磨混合物,以及高压水 在喷嘴附近的管线增加混合物从喷嘴的流动速度。