Catalyst System for Moisture Cure of Ethylene-Vinylsilane Copolymers
    1.
    发明申请
    Catalyst System for Moisture Cure of Ethylene-Vinylsilane Copolymers 审中-公开
    乙烯 - 乙烯基硅烷共聚物水分固化催化剂体系

    公开(公告)号:US20100160471A1

    公开(公告)日:2010-06-24

    申请号:US12630915

    申请日:2009-12-04

    IPC分类号: C08F8/00 C08L43/04 C08F30/08

    CPC分类号: C08K5/42 C08K5/56 C08L43/04

    摘要: Ethylene-vinylsilane copolymers are moisture-cured under ambient conditions using a synergistic combination of at least one Lewis acid and at least one Brønsted acid or at least one Lewis base and at least one Brønsted base. Preferably the catalyst system comprises a Lewis acid, e.g., dibutyltin dilaurate, in combination with a Brønsted acid, e.g., sulfonic acid. The Lewis acid or base and the Brønsted acid or base is present in the catalyst system at a molar ratio of Lewis acid/base to Brønsted acid/base of 1:10 to 10:1.

    摘要翻译: 乙烯 - 乙烯基硅烷共聚物在环境条件下使用至少一种路易斯酸和至少一种布朗斯台德酸或至少一种路易斯碱和至少一种布朗斯台德碱的协同组合进行湿固化。 优选地,催化剂体系包含与布朗斯台德酸例如磺酸组合的路易斯酸,例如二月桂酸二丁基锡。 路易斯酸或碱和布朗斯台德酸或碱以路易斯酸/碱与布朗斯台德酸/碱的摩尔比1:10至10:1存在于催化剂体系中。

    Calcium carbonate sorbent and methods of making and using same
    9.
    发明授权
    Calcium carbonate sorbent and methods of making and using same 失效
    碳酸钙吸附剂及其制造和使用方法

    公开(公告)号:US5779464A

    公开(公告)日:1998-07-14

    申请号:US584089

    申请日:1996-01-10

    摘要: A novel CaCO.sub.3 sorbent with its physical properties tailored for high SO.sub.2 removal is produced in accordance with the present invention. The surface area, porosity and the distribution of pore sizes of the sorbent have been designed and controlled to give rise to the optimum internal structure necessary for high SO.sub.2 removal. The CaCO.sub.3 sorbent possesses 60 m.sup.2 /g surface area and 0.18 cc/g pore volume and exhibits extraordinary reactivity towards SO.sub.2 (70% utilization in 530 milliseconds at 1080.degree. C. and 3900 ppm SO.sub.2 concentration) when compared with other carbonate and hydrate sorbents in our laboratory reactor system. The sorbent may be produced by precipitation in a slurry bubble column reactor system and preferably contains about 2% by weight of a surfactant which is added during its preparation and improves the properties of CaCO.sub.3 in the course of precipitation. The high utilization of this tailored CaCO.sub.3 sorbent makes it a very strong potential sorbent for dry sorbent injection technology.

    摘要翻译: 根据本发明产生了具有适于高SO 2去除的物理性质的新型CaCO3吸附剂。 已经设计和控制了吸附剂的表面积,孔隙率和孔径分布,以产生高SO 2去除所需的最佳内部结构。 CaCO3吸附剂具有60m 2 / g表面积和0.18cc / g孔体积,并且与其它碳酸盐和水合物吸附剂相比,在SO2(在1080℃530℃和3900ppm SO 2浓度下,70%利用率)表现出非同寻常的反应性 我们的实验室反应堆系统。 吸附剂可以通过在浆液鼓泡塔反应器系统中沉淀来制备,并且优选含有约2重量%的在其制备过程中加入的表面活性剂,并且改善沉淀过程中CaCO 3的性质。 这种定制的CaCO3吸附剂的高利用率使其成为干吸附剂注入技术的非常强的潜在吸附剂。