Catalyst systems based on transition metal complexes for carbon monoxide copolymerization in an aqueous medium
    21.
    发明申请
    Catalyst systems based on transition metal complexes for carbon monoxide copolymerization in an aqueous medium 失效
    基于在水性介质中一氧化碳共聚的过渡金属络合物的催化剂体系

    公开(公告)号:US20040092682A1

    公开(公告)日:2004-05-13

    申请号:US10692334

    申请日:2003-10-24

    IPC分类号: C08F004/44 B01J031/00

    摘要: Catalyst systems for the copolymerization of carbon monoxide and null-olefinically unsaturated compounds contain, as essential components, a) a metal complex of the formula (I) 1 nullwhere R1 to R4 are each linear or branched C2- to C28-alkyl, C3- to C14-cycloalkyl or alkylaryl where the alkyl moiety is of 1 to 28 carbon atoms and the aryl moiety is of 6 to 15 carbon atoms, each of which is substituted by at least one polar protic or ionic functional group based on elements of groups IVA to VIA of the Periodic Table of Elements, and b) if required, one or more Lewis or protic acids or a mixture of Lewis and protic acids.

    摘要翻译: 用于一氧化碳和α-烯属不饱和化合物共聚的催化剂体系含有a)式(I)的金属络合物,其中R 1至R 4各自为直链或支链C 2-8 - 烷基,C 3至C 14 - 环烷基或烷基芳基,其中烷基部分为1至28个碳原子,芳基部分为6至15个碳原子,各自被至少一个极性质子或离子官能团基团取代 在元素周期表IVA至VIA族的元素上,以及b)如果需要,可以使用一种或多种路易斯酸或质子酸或路易斯酸和质子酸的混合物。

    Polyester polycondensation with catalyst and a catalyst enhancer
    24.
    发明授权
    Polyester polycondensation with catalyst and a catalyst enhancer 失效
    与催化剂和催化剂增强剂的聚酯缩聚

    公开(公告)号:US06372879B1

    公开(公告)日:2002-04-16

    申请号:US09895990

    申请日:2001-06-29

    IPC分类号: C08G6302

    摘要: The present invention is based upon the discovery that nontitanyl oxalates can enhance the catalytic functionality of titanyl oxalate catalysts. This invention provides a novel catalytic composition containing a titanyl oxalate catalyst and a metallic oxalate catalyst enhancer and optionally containing a metallic cocatalyst such as an antimony based catalyst. A synergistic relationship has been discovered between titanyl oxalate catalyst and the catalyst enhancer. A synergistic relationship has also been discovered between the titanyl oxalate catalyst, catalyst enhancer and a metallic cocatalyst such as antimony oxide or antimony triacetate. Also provided is an improved process of producing polyester by the polycondensation of polyester forming reactants in the presence of a catalytically effective amount of a polycondensation catalyst, wherein the improvement comprises utilizing, as the polycondensation catalyst, the novel catalyst composition containing a titanyl oxalate such as lithium titanyl oxalate and a catalyst enhancer such as a nontitanyl metallic oxalate like lithium oxalate and optionally containing a metallic catalyst such as antimony oxide or antimony triacetate. The improved process produces an improved polyester having lower acetaldehyde numbers and good color. The titanyl oxalate/catalyst enhancer composition can be used as a polycondensation catalyst in combination with other catalysts to achieve synergistic catalytic activity. Preferred is a combination of lithium or potassium titanyl oxalate, Li2 or K2TiO(C2O4)2, lithium or potassium oxalate, Li2 or K2(C2O4)2 with antimony oxide or antimony triacetate or antimony trisglycoxide.

    摘要翻译: 本发明基于以下发现,即草酸钛酸酯可以增强草酸氧钛催化剂的催化功能。 本发明提供一种含有草酸氧钛催化剂和金属草酸盐催化剂增强剂并任选地含有金属助催化剂如锑基催化剂的新型催化组合物。 在草酸氧钛催化剂和催化剂增强剂之间已经发现协同关系。 在草酸氧钛催化剂,催化剂增强剂和金属助催化剂如氧化锑或三乙酸锑之间也发现了协同关系。 还提供了通过在催化有效量的缩聚催化剂存在下,通过聚酯形成反应物的缩聚来生产聚酯的改进方法,其中改进包括利用含有草酸氧钛的新型催化剂组合物作为缩聚催化剂, 草酸氧钛酸锂和催化剂增强剂如非钛酸金属草酸盐如草酸锂,并任选地含有金属催化剂如氧化锑或三乙酸锑。 改进的方法产生具有较低乙醛数和良好颜色的改进的聚酯。 草酸氧钛/催化剂增强剂组合物可以与其它催化剂组合用作缩聚催化剂以实现协同催化活性。 优选的是草酸锂或钾钛酸盐,Li 2或K 2 TiO(C 2 O 4)2,草酸锂或钾,Li 2或K 2(C 2 O 4)2与氧化锑或三乙酸锑或三羟基氧化锑的组合。

    Method for preparing a catalyst and catalysts prepared accordingly
    25.
    发明授权
    Method for preparing a catalyst and catalysts prepared accordingly 失效
    制备相应的催化剂和催化剂的方法

    公开(公告)号:US06350714B1

    公开(公告)日:2002-02-26

    申请号:US09555603

    申请日:2000-05-31

    IPC分类号: B01J3100

    摘要: The present invention relates to a process for preparing a catalyst by activating a catalytic composition which comprises a) at least one metal of group IB or IIB or a compound thereof, b) where appropriate a carrier which comprises treating the composition with an alkyne of the general formula I R1—C≡C—R2  (I) in which R1 is alkyl, cycloalkyl, aryl, hydroxyalkyl, haloalkyl, alkoxy or alkoxyalkyl, R2 is a hydrogen atom, alkyl, cycloalkyl or aryl, and a carbonyl compound of the general formula II in which R3 and R4 are, independently of one another, a hydrogen atom, alkyl, haloalkyl, cycloalkyl or aryl, to catalysts obtainable by this process, and to alkynylations and aminoalkylations employing these catalysts.

    摘要翻译: 本发明涉及通过活化催化组合物来制备催化剂的方法,所述催化组合物包含:a)至少一种IB或IIB族金属或其化合物,b)适当的载体包括用通式 其中R 1是烷基,环烷基,芳基,羟烷基,卤代烷基,烷氧基或烷氧基烷基,R 2是氢原子,烷基,环烷基或芳基,和通式IIin的羰基化合物,其中R 3和R 4彼此独立地是氢 原子,烷基,卤代烷基,环烷基或芳基,可通过该方法获得的催化剂,以及使用这些催化剂的炔基化和氨基烷基化。

    Process for manufacturing polyurethane using a metal acetyl
acetonate/acetyl acetone catalyst system and the product made therefrom
    26.
    发明授权
    Process for manufacturing polyurethane using a metal acetyl acetonate/acetyl acetone catalyst system and the product made therefrom 失效
    使用金属乙酰丙酮/乙酰丙酮催化剂体系制备聚氨酯的方法及由其制备的产品

    公开(公告)号:US5733945A

    公开(公告)日:1998-03-31

    申请号:US566480

    申请日:1995-12-04

    申请人: Scott S. Simpson

    发明人: Scott S. Simpson

    摘要: Nickel acetyl acetonate catalysts used in the manufacture of polyurethanes and particularly polyurathane foam, is replaced with a more environmentally friendly organo-metallic catalyst, specifically other metal acetyl acetonates such as iron or copper. In accordance with an important feature of this invention, in addition to the metal acetyl acetonate, the catalyst system also includes acetyl acetone. The acetyl acetone acts as a delay mechanism to delay the catalytic action of the metal acetyl acetonate which is normally highly catalytic at relatively low temperatures. It will be appreciated that high catalytic activity at relatively low temperature will lead to deleterious premature cure. By adding acetyl acetone into the catalyst system, the acetyl acetone acts to delay and/or slow the catalytic action of the metal acetyl acetonate until the polyurethane is heated at which point the acetyl acetone is driven off and the metal acetyl acetonate then provides a relatively fast cure at the elevated temperature.

    摘要翻译: 用于制造聚氨酯,特别是聚尿烷泡沫的乙酰丙酮镍催化剂被更环保的有机金属催化剂,特别是其它金属乙酰丙酮如铁或铜替代。 根据本发明的重要特征,除了乙酰丙酮金属之外,催化剂体系还包括乙酰丙酮。 乙酰丙酮作为延迟机制来延迟在较低温度下通常高度催化的乙酰丙酮金属的催化作用。 应当理解,在较低温度下的高催化活性将导致有害的过早固化。 通过向催化剂体系中加入乙酰丙酮,乙酰丙酮起延迟和/或减缓乙酰丙酮金属的催化作用直至加热聚氨酯,此时乙酰丙酮被驱除,然后乙酰丙酮金属提供相对的 在高温下快速固化。