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236 条记录 (耗时 0.019 秒)

    Phenolphthalein polyarylate polymers and alloy compositions thereof
    34.
    发明公开
    Phenolphthalein polyarylate polymers and alloy compositions thereof 失效
    Polymere von Phenolphthaleinpolyarylat和Legierungzusammensetzungen davon。

    公开(公告)号：EP0279091A1

    公开(公告)日：1988-08-24

    申请号：EP87301368.4

    申请日：1987-02-17

    申请人： CHEVRON RESEARCH AND TECHNOLOGY COMPANY

    发明人： Parker, Phillip H.

    IPC分类号： C08G63/18 ,  C08L67/02

    CPC分类号： C08L67/03 ,  C08G63/193 ,  C08L2666/04 ,  C08L2666/18

    摘要： Polyarylate polymers or copolymers derived from (A) substituted phenolphthalein compounds or mixtures of these compounds with other bisphenols respectively, and (B) a mixture of isophthalic and terephthalic acids exhibit improved thermal properties. Also disclosed are polyarylate alloy compositions comprising a phenolphthalein polyarylate or copolymer and a polymer resin selected from polybisphenol A carbonate and polystyrene.

    摘要翻译： 衍生自（A）取代酚酞化合物或这些化合物与其它双酚的混合物的聚芳酯聚合物或共聚物和（B）间苯二甲酸和对苯二甲酸的混合物表现出改善的热性能。 还公开了包含酚酞聚芳酯或共聚物的多芳基化合物组合物和选自聚双苯酚A碳酸酯和聚苯乙烯的聚合物树脂。

    Zeolitic reforming catalyst and method of producing the same
    36.
    发明公开
    Zeolitic reforming catalyst and method of producing the same 失效
    Zeolith-Reformierkatalysator和Verfahren zu seiner Herstellung。

    公开(公告)号：EP0198720A1

    公开(公告)日：1986-10-22

    申请号：EP86302857.7

    申请日：1986-04-16

    申请人： CHEVRON RESEARCH AND TECHNOLOGY COMPANY

    发明人： Santilli, Donald S. ,  Long, John J. ,  Lewis, Robert T.

    IPC分类号： C10G35/095 ,  B01J29/30

    CPC分类号： B01J29/63 ,  B01J29/62 ,  B01J2229/26 ,  B01J2229/42 ,  C10G35/095

    摘要： A highly active and selective zeolitic reforming catalyst comprises a type L zeolite containing platinum metal and at least one promoter selected from iron, cobalt, titanium and the rare earth metals, the catalyst having a platinum to promoter metal mole ratio of less than 10:1. In one embodiment a type L zeolite is formed by combining an aqueous solution of potassium hydroxide, aluminum hydroxide, and ferric nitrate with an aqueous solution of silica to form a thickening gel in a mother liquor; heating the thickening gel to form a type L zeolite; cooling the gel containing the type L zeolite; decanting the mother liquor from the gel; filtering the type L zeolite from the gel; washing the filtered type L zeolite so that the pH of the wash is about 10.5 and drying the washed type L zeolite. The catalyst is formed by adding platinum to the dried type Lzeolite by porefill impregnation with an aqueous solution of Pt(NH 3 ) 4 (NO 3 ) 2 to form a catalyst; drying the catalyst and then calcining the dried catalyst.

    摘要翻译： 一种高活性和选择性的沸石重整催化剂包括含有铂金属的L型沸石和至少一种选自铁，钴，钛和稀土金属的助催化剂，催化剂的铂与助催化剂的摩尔比小于10:1 。 在一个实施方案中，通过将氢氧化钾，氢氧化铝和硝酸铁的水溶液与二氧化硅水溶液组合以在母液中形成增稠凝胶而形成L型沸石; 加热增稠凝胶形成L型沸石; 冷却含有L型沸石的凝胶; 从凝胶中滗出母液; 从凝胶中过滤L型沸石; 洗涤过滤的L型沸石，使洗涤液的pH为约10.5，并干燥洗涤的L型沸石。 通过用Pt（NH 3）4（NO 3）2水溶液的孔填充浸渍将铂添加到干燥的L型沸石中形成催化剂以形成催化剂; 干燥催化剂，然后煅烧干燥的催化剂。

    SEAFLOOR SEISMIC RECORDER
    40.
    发明公开
    SEAFLOOR SEISMIC RECORDER 失效
    海底SEISMIESCHEN录音机。

    公开(公告)号：EP0681705A1

    公开(公告)日：1995-11-15

    申请号：EP92920235.0

    申请日：1992-09-10

    申请人： CHEVRON RESEARCH AND TECHNOLOGY COMPANY

    发明人： DONOHO, Paul, L. ,  PETERSON, Mitchell, F. ,  RYDER, Hughie ,  KEELING, William, H.

    IPC分类号： G01V1

    CPC分类号： G01V1/24 ,  G01V1/38

    摘要： A method and apparatus for recording acoustical and seismic signals at the ocean bottom with minimal noise. A seafloor seismic recorder (101) couples geophones to the water bottom, stores the seismic data, and is retrievable. The device is comprised of a chassis (103), a ballast ring (113), an electronics control package (123), a geophone package (141), a buoy means (171), and a leg extension means. The geophone package (141) is disconnectably connected to the portion of the control package housing (123), so that the geophone package (141) can remain coupled to the seafloor, when the control package (123) and chassis (103) rise toward the surface for a short distance. The buoy means (171) permits the ballast ring (113) and geophone package (141) to become embedded in the sediment upon impact, and allows the chassis (103), geophone package (141), and control package (123) to rise to the surface upon release of the ballast ring (113). Leg members (107) can be partially extended to cause the chassis (103) and control package (123) to rise toward the surface for a short distance, to isolate the geophone package (141) from the control package (123) and chassis (103) during recording operations.