Method for preparation of alkenylsilanes
    1.
    发明授权
    Method for preparation of alkenylsilanes 失效
    烯基硅烷的制备方法

    公开(公告)号:US5756796A

    公开(公告)日:1998-05-26

    申请号:US861311

    申请日:1997-05-19

    CPC classification number: C07F7/0827

    Abstract: A method for preparation of alkenylsilanes comprising contacting magnesium metal with a mixture comprising diethylene glycol dibutyl ether, an alkenyl halide, and a halosilane at a temperature within a range of about 5.degree. C. to 200.degree. C. The method provides a high yield of alkenylsilane product that is easily recoverable and also provides for high ratios of alkenylsilane to diethylene glycol dibutyl ether.

    Abstract translation: 一种制备烯基硅烷的方法,包括使镁金属与包含二甘醇二丁基醚,链烯基卤化物和卤代硅烷的混合物在约5℃至200℃的温度范围内接触。该方法提供了高产率 烯基硅烷产物易于回收,并且还提供了高比例的烯基硅烷与二甘醇二丁醚。

    Grignard processes with improved yields of diphenylchlorosilanes as products
    6.
    发明授权
    Grignard processes with improved yields of diphenylchlorosilanes as products 失效
    Grignard工艺具有提高的二苯基氯硅烷的产率作为产品

    公开(公告)号:US07456308B2

    公开(公告)日:2008-11-25

    申请号:US10585154

    申请日:2004-12-17

    CPC classification number: C07F7/122 C07B49/00

    Abstract: A Grignard process for preparing phenyl-containing chlorosilane products, in particular diphenylchlorosilanes, is carried out in three embodiments. In the first embodiment, the reactants of the Grignard process are a phenyl Grignard reagent, an ether solvent, a trichlorosilane, and an aromatic hydrocarbon coupling solvent. In the second embodiment, the reactants of the Grignard process are a phenyl Grignard reagent, an ether solvent, a phenylchlorosilane, and an aromatic hydrocarbon coupling solvent. In the third embodiment, the reactants of the Grignard process are a phenyl Grignard reagent, an ether solvent, a trichlorosilane, a phenylchlorosilane, and an aromatic hydrocarbon coupling solvent. In each embodiment, the reactants are present in a particular mole ratio.

    Abstract translation: 用于制备含苯基氯硅烷产物,特别是二苯基氯硅烷的格氏法是在三个实施方案中进行的。 在第一实施方案中,格氏法的反应物是苯基格氏试剂,醚溶剂,三氯硅烷和芳族烃偶合溶剂。 在第二实施方案中,格氏法的反应物是苯基格氏试剂,醚溶剂,苯基氯硅烷和芳族烃偶联溶剂。 在第三实施方案中,格氏法的反应物是苯基格氏试剂,醚溶剂,三氯硅烷,苯基氯硅烷和芳烃耦合溶剂。 在每个实施方案中,反应物以特定的摩尔比存在。

    Method of preparing silacycloalkanes
    7.
    发明授权
    Method of preparing silacycloalkanes 有权
    硅烷环烷烃的制备方法

    公开(公告)号:US06462214B1

    公开(公告)日:2002-10-08

    申请号:US10091920

    申请日:2002-03-05

    CPC classification number: C07F7/083

    Abstract: According to the present invention, a method of preparing a silacycloalkane, comprising the steps of (A) adding a substituted silacycloalkane having the formula: wherein X1 is —F, —Cl, —Br, or —OR1 and X2 is X1 or H, wherein R1 is C1-C8 hydrocarbyl, and n is 1, 2, or 3, to a suspension of lithium aluminum hydride in a glycol diether at a temperature not greater than 50° C. to form a mixture, wherein the glycol diether consists essentially of a linear arrangement of oxyalkylene units having formulae independently selected from —OCH2CH2—, —OCH2CH(CH3)—, and —OCH2CH(CH2CH3)—, and end-groups having the formulae —R2 and —OR2, wherein each R2 is independently selected from C1-C8 alkyl, phenyl, and C1-C8 alkyl-substituted phenyl, provided the glycol diether has a normal boiling point of at least 85° C. and a viscosity not greater than 3000 mm2/s at 25° C.; and (B) distilling the mixture under reduced pressure at a temperature not greater than 50° C. to remove the silacycloalkane.

    Abstract translation: 根据本发明,制备硅烷环烷的方法包括以下步骤:(A)加入具有下式的取代的硅环烷烃:其中X 1是-F,-Cl,-Br或-OR 1,X 2是X 1或H, 其中R 1为C 1 -C 8烃基,n为1,2或3,在氢化铝锂在乙二醇二醚中的温度不高于50℃的悬浮液中形成混合物,其中二醇二醚基本上组成 具有独立地选自-OCH 2 CH 2 - , - OCH 2 CH(CH 3) - 和-OCH 2 CH(CH 2 CH 3))的式的氧化烯单元的直链排列,以及具有式-R2和-OR2的端基,其中每个R 2独立地选自 苯基和C 1 -C 8烷基取代的苯基,条件是二醇二醚的标准沸点至少为85℃,粘度在25℃下不大于3000mm 2 / s。 和(B)在不低于50℃的温度下在减压下蒸馏混合物以除去硅烷环烷烃。

    Method of making silicone-organic block copolymers
    8.
    发明授权
    Method of making silicone-organic block copolymers 失效
    硅酮有机嵌段共聚物的制备方法

    公开(公告)号:US5789516A

    公开(公告)日:1998-08-04

    申请号:US826716

    申请日:1997-04-07

    CPC classification number: C08G77/442 C08F4/40

    Abstract: A method of manufacturing block copolymers containing a polyorganosiloxane segment, by dual polymerization involving (i) polycondensation of a silicone block followed by (ii) the free radical polymerization of a monomer that can be polymerized by free radical polymerization, such as a vinyl containing organic monomer. Initiation of free radical polymerization in step (ii) is carried out with a carbonyl functional group attached to the silicone polymer block. The carbonyl functional silicone polymer, preferably an aldehyde functional silicone polymer, is included as one component of a copper-based Redox initiating system. The method ensures no free homopolymerization, complete reactivity, and various polymer architectures are possible, including for example, polymeric structures such as AB, ABA, (AB).sub.n, brush, and radiant types. The method is fast, effective, convenient, and easier to control than typical ionic polymerization techniques. The silicone-organic block copolymers obtained by the process have utility as polymeric surfactants or as solubility modifiers.

    Abstract translation: 通过双重聚合制造含有聚有机硅氧烷链段的嵌段共聚物的方法,包括(i)硅氧烷嵌段的缩聚,随后(ii)可通过自由基聚合反应的单体的自由基聚合,例如含乙烯基的有机物 单体。 在步骤(ii)中开始自由基聚合是用与硅氧烷聚合物嵌段连接的羰基官能团进行的。 羰基官能硅氧烷聚合物,优选醛官能的硅氧烷聚合物,作为铜基氧化还原引发体系的一个组分被包括在内。 该方法确保没有游离的均聚,完全的反应性,并且各种聚合物结构是可能的,包括例如聚合物结构如AB,ABA,(AB)n,刷和辐射型。 该方法比典型的离子聚合技术快速,有效,方便,易于控制。 通过该方法获得的硅氧烷 - 有机嵌段共聚物可用作聚合物表面活性剂或溶解度调节剂。

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