Polysiloxane-polyorgano block copolymers
    6.
    发明授权
    Polysiloxane-polyorgano block copolymers 有权
    聚硅氧烷 - 聚有机嵌段共聚物

    公开(公告)号:US08829140B2

    公开(公告)日:2014-09-09

    申请号:US13472871

    申请日:2012-05-16

    CPC分类号: C08G77/448 C08G77/14

    摘要: Disclosed herein is a process for the production of a polysiloxane-polyorgano block copolymer. The process includes reacting a reaction mixture containing (a) an ester-functional polydiorganosiloxane and (b) a bisphenolic compound or a bisphenolic compound oligomer. This process has the advantage of yielding block copolymers with controlled block structures and avoiding the impurities that may be carried over from the conventional hydroxyaryloxy-terminated-polydiorganosiloxanes.

    摘要翻译: 本文公开了一种制备聚硅氧烷 - 聚有机嵌段共聚物的方法。 该方法包括使含有(a)酯官能聚二有机硅氧烷和(b)双酚化合物或双酚化合物低聚物的反应混合物反应。 该方法具有产生具有受控嵌段结构的嵌段共聚物并避免可能由常规羟基氧基封端的聚二有机硅氧烷所携带的杂质的优点。

    Liquid organopolysiloxane resins, a process for their preparation, low
viscosity polydiorganosiloxane compositions containing liquid
organopolysiloxane resins and their use
    7.
    发明授权
    Liquid organopolysiloxane resins, a process for their preparation, low viscosity polydiorganosiloxane compositions containing liquid organopolysiloxane resins and their use 失效
    液体有机聚硅氧烷树脂,其制备方法,含有液体有机聚硅氧烷树脂的低粘度聚二有机硅氧烷组合物及其用途

    公开(公告)号:US5932668A

    公开(公告)日:1999-08-03

    申请号:US700896

    申请日:1996-08-21

    摘要: Novel liquid organopolysiloxane resins of the average composition �R.sup.1 Si(CH.sub.3).sub.2 O.sub.1/2 !.sub.a �(CH.sub.3).sub.3 SiO.sub.1/2 !.sub.b �R.sup.2 O.sub.1/2 !.sub.c �R.sup.1 Si(CH.sub.3)O!.sub.d �(CH.sub.3).sub.2 SiO!.sub.e �SiO.sub.2 !,whereinR.sup.1 is a C.sub.2 -C.sub.8 -alkenyl group,R.sup.2 is an optionally substituted, linear or branched C.sub.1 -C.sub.8 -alkyl group or a mixture thereof,a+b+c+d+e is about 1 to 6,d+e is about 0 to 3,the resin has a viscosity of 0.1 to 1000 Pas at 25.degree. C., andthe alkenyl or vinyl content of the resin is in the range of 0.4 to 4 mmol/g,and their preparation by reacting at least one of tetraalkoxysilane and its partial hydrolyzate with at least one organosiloxane and a strong acid as catalyst in the presence of water and optionally an organic solvent at a temperature of about >40.degree. C. They are formulated into novel low viscosity polydiorganosiloxane compositions.

    摘要翻译: 具有平均组成[R1Si(CH3)2O + E,fra1 / 2 + EE] a [(CH3)3SiO + E,fra1 / 2 + EE] b [R2O + E,fra 1/2]的新型液体有机聚硅氧烷树脂 + EE] c [R 1 Si(CH 3)O] d [(CH 3)2 SiO] e [SiO 2],其中R 1是C 2 -C 8 - 烯基,R 2是任选取代的直链或支链C 1 -C 8烷基或 其混合物,+ b + c + d + e为约1〜6,d + e约为0〜3,树脂在25℃下的粘度为0.1〜1000Pa·s,烯基或乙烯基含量 的树脂在0.4〜4mmol / g的范围内,并且通过使四烷氧基硅烷及其部分水解产物中的至少一种与至少一种有机硅氧烷和强酸作为催化剂在水和任选的有机溶剂的存在下反应而制备 在约> 40℃的温度下,将它们配制成新的低粘度聚二有机硅氧烷组合物。

    POLYSILOXANE-POLYORGANO BLOCK COPOLYMERS
    8.
    发明申请
    POLYSILOXANE-POLYORGANO BLOCK COPOLYMERS 有权
    聚硅氧烷聚合物嵌段共聚物

    公开(公告)号:US20120296051A1

    公开(公告)日:2012-11-22

    申请号:US13472871

    申请日:2012-05-16

    IPC分类号: C08G77/445 C08G77/18

    CPC分类号: C08G77/448 C08G77/14

    摘要: Disclosed herein is a process for the production of a polysiloxane-polyorgano block copolymer. The process includes reacting a reaction mixture containing (a) an ester-functional polydiorganosiloxane and (b) a bisphenolic compound or a bisphenolic compound oligomer. This process has the advantage of yielding block copolymers with controlled block structures and avoiding the impurities that may be carried over from the conventional hydroxyaryloxy-terminated-polydiorganosiloxanes.Also disclosed are ester-functional polysiloxanes and polysiloxane-polyorgano block copolymers prepared by the process of the invention. These copolymers exhibit advantageous properties such as improved low temperature properties, improved rheological properties during molding, improved clarity, chemical, scratch resistance, and improved electrical insulation properties.

    摘要翻译: 本文公开了一种制备聚硅氧烷 - 聚有机嵌段共聚物的方法。 该方法包括使含有(a)酯官能聚二有机硅氧烷和(b)双酚化合物或双酚化合物低聚物的反应混合物反应。 该方法具有产生具有受控嵌段结构的嵌段共聚物并避免可能由常规羟基氧基封端的聚二有机硅氧烷所携带的杂质的优点。 还公开了通过本发明的方法制备的酯官能聚硅氧烷和聚硅氧烷 - 聚有机嵌段共聚物。 这些共聚物表现出有利的性质,例如改进的低温性能,改善模塑过程中的流变性能,改进的透明度,化学,耐刮擦性和改善的电绝缘性能。

    Method for preparing chlorosilane
    9.
    发明申请
    Method for preparing chlorosilane 审中-公开
    氯硅烷的制备方法

    公开(公告)号:US20050113592A1

    公开(公告)日:2005-05-26

    申请号:US10910946

    申请日:2004-08-04

    CPC分类号: C07F7/128

    摘要: The invention relates to a process for manufacturing chlorosilanes, in which methyl-rich disilane, polysilane and siloxane residues from the Müller-Rochow synthesis or a chlorosilane synthesis are reduced in quantity. It comprises the steps: a) reaction of silicon with alkyl halogenides, aryl halogenides or hydrogen chloride, b) reaction of at least one high-boiling product fraction from step a) with at least one halogenide and c) reaction of at least one high-boiling product fraction resulting from step b) with alkyl halogenides, aryl halogenides and/or chlorosilanes.

    摘要翻译: 本发明涉及一种制备氯硅烷的方法,其中来自Müller-Rochow合成或氯硅烷合成的富含甲基的乙硅烷,聚硅烷和硅氧烷残基数量减少。 它包括以下步骤:a)硅与烷基卤化物,芳基卤化物或氯化氢的反应,b)至少一种来自步骤a)的高沸点产物级分与至少一种卤化物的反应,和c)至少一种高 由步骤b)得到的沸石产物级分与烷基卤化物,芳基卤化物和/或氯硅烷反应。

    Method for producing organofunctional siloxanes and use of same
    10.
    发明授权
    Method for producing organofunctional siloxanes and use of same 失效
    制备有机官能硅氧烷的方法及其用途

    公开(公告)号:US06258968B1

    公开(公告)日:2001-07-10

    申请号:US09367668

    申请日:1999-12-10

    IPC分类号: C07F708

    摘要: Process for the preparation of organofunctional polysiloxanes, which comprises reacting cyclic dialkylsiloxanes with at least one compound of the type HO—R′—X, wherein X═—OH, —COOH, —NR″2—, —CR″═CR″2, and R═alkyl, aryl, alkylene, oxyalkylene or arylene, in the presence of an equilibration catalyst.

    摘要翻译: 用于制备有机官能聚硅氧烷的方法,其包括使环状二烷基硅氧烷与至少一种类型的HO-R'-X化合物反应,其中X = -OH,-COOH,-NR'2,-CR“= CR 在平衡催化剂的存在下,R =烷基,芳基,亚烷基,氧化烯或亚芳基。