Method for Producing Oh-Terminal Organic Hydrogen Polysiloxanes
    52.
    发明申请
    Method for Producing Oh-Terminal Organic Hydrogen Polysiloxanes 有权
    生产OH末端有机氢聚硅氧烷的方法

    公开(公告)号:US20080269453A1

    公开(公告)日:2008-10-30

    申请号:US12088967

    申请日:2006-09-29

    IPC分类号: C08G77/12

    CPC分类号: C08G77/12

    摘要: Hydroxyl-terminal organopolysiloxanes having diorganylsiloxy [diorganosiloxy ??] groups and Si—H groups are prepared by reacting the appropriate chlorosilanes with less than 0.5 mol water per mol of hydrolyzable chlorine in a first step and recovering gaseous HCl, and more fully hydrolyzing with additional water in a second step.

    摘要翻译: 具有二有机甲硅烷氧基[二有机甲硅烷氧基αβ]基团和Si-H基团的羟基末端有机聚硅氧烷通过在第一步中使适当的氯硅烷与小于0.5摩尔水/摩尔可水解氯反应并回收气态HCl来制备,并且更加完全水解 水在第二步。

    Method for the Production of Emulsions of Highly-Viscous Organopolysiloxanes
    53.
    发明申请
    Method for the Production of Emulsions of Highly-Viscous Organopolysiloxanes 有权
    高粘度有机聚硅氧烷乳液生产方法

    公开(公告)号:US20080033062A1

    公开(公告)日:2008-02-07

    申请号:US11572616

    申请日:2005-07-28

    IPC分类号: B01F3/10

    摘要: Emulsions of highly viscous organopolysiloxanes are prepared by reacting organopolysiloxanes having at least one Si—OH group with alkoxysilanes bearing a group BReSi(OR3)3-e wherein R is a hydrocarbon radical and B is a radical —CR22—Y where Y is halogen, monosubstituted O or S or substituted N or P, the reaction taking place as a dispersion in water, optionally in the presence of an emulsifier.

    摘要翻译: 高粘度有机聚硅氧烷的乳液通过使具有至少一个Si-OH基团的有机聚硅氧烷与带有基团Si(OR 3)3-e的烷氧基硅烷反应来制备 其中R是烃基,B是基团-CR 2 -AT 2,其中Y是卤素,单取代的O或S或取代的N或P, 反应发生在水中的分散体,任选地在乳化剂存在下进行。

    Alkenyl-functional siloxane copolymers as antimisting additives for silicone coating compositions

    公开(公告)号:US06764717B2

    公开(公告)日:2004-07-20

    申请号:US10298715

    申请日:2002-11-18

    IPC分类号: B05D102

    摘要: Antimisting additives are used in crosslinkable silicone coating compositions for reducing aerosol formation, the antimisting additives being alkenyl-functional siloxane copolymers prepared by reacting a hydrocarbon containing at least three aliphatic double bonds, and with an organosiloxane (2) having terminal Si-bonded hydrogen atoms in the presence of a hydrosilylation catalyst (3) at a ratio of Si-bonded hydrogen to aliphatic double bonds of from 1.3 to 10, and subsequently reacting the resulting SiH-containing hydrocarbon-siloxane copolymer with an &agr;,&ohgr;-dialkenylsiloxane polymer (4) in the presence of a hydrosilylation catalyst (3) at a ratio of aliphatic double bonds to Si-bonded hydrogen of from 1.2 to 10, and optionally, in another step, equilibrating the resulting alkenyl-functional siloxane copolymers with an organopolysiloxane (5).

    Branched organosiloxane (co)polymers and their use as antimisting additives for silicone coating compositions
    56.
    发明授权
    Branched organosiloxane (co)polymers and their use as antimisting additives for silicone coating compositions 失效
    支链有机硅氧烷(共)聚合物及其作为硅氧烷涂料组合物的防静电添加剂的用途

    公开(公告)号:US06759094B2

    公开(公告)日:2004-07-06

    申请号:US10198524

    申请日:2002-07-17

    IPC分类号: B05D300

    摘要: Branched organosiloxane (co)polymers comprising the structural elements of the formula Y[—CnH2n—(R2SiO)m—Ap—R2Si—G]x  (I) where Y is a tri- to decavalent, optionally heteroatom-containing hydrocarbon radical, R is a monovalent, optionally halogenated hydrocarbon radical, A is a radical of the formula —R2Si—R2—(R2SiO)m—, in which R2 is a divalent hydrocarbon radical, G is a monovalent radical of the formula —CfH2f−2—Z or a divalent radical of the formula —CnH2n— bonded to a further radical Y, Z is a monovalent hydrocarbon radical which is free from terminal aliphatic carbon-carbon multiple bonds, and is inert toward SiH groups in hydrosilylation reactions, x is an integer from 3 to 10, f is an integer from 2 to 12, k is 0 or 1, n is an integer from 2 to 12, m is an integer which is at least 1, and p is 0 or a positive integer, with the proviso that the branched organosiloxane (co)polymers contain on average at least one group Z.

    摘要翻译: 包含式(Ⅳ)的结构元素的支链有机硅氧烷(共)聚合物是三价至十价,任选含杂原子的烃基,R是一价的,任意卤代的烃基,A是式-R 2 Si-R的基团, 2 - (R 2 SiO)m - ,其中R 2是二价烃基,G是式-CfH 2 F-2-Z的一价基团或式-C n H 2n的二价基团键合到另外的基团 Y,Z是不含末端脂肪碳 - 碳多键的单价烃基,在氢化硅烷化反应中对SiH基团呈惰性,x为3至10的整数,f为2至12的整数,k为 0或1,n是2至12的整数,m是至少为1的整数,p是0或正整数,条件是支链的有机基硅氧烷(共)聚合物平均包含至少一个基团 Z.

    Siloxane copolymers containing alkenyl groups
    57.
    发明授权
    Siloxane copolymers containing alkenyl groups 有权
    含有烯基的硅氧烷共聚物

    公开(公告)号:US06265497B1

    公开(公告)日:2001-07-24

    申请号:US09447856

    申请日:1999-11-23

    申请人: Christian Herzig

    发明人: Christian Herzig

    IPC分类号: C08L8305

    摘要: The invention provides alkenyl-containing siloxane copolymers preparable by reacting: a compound (1) having at least three aliphatic double bonds, of the general formula R2(CR3═CH2)x  where R2 is a trivalent or tetravalent hydrocarbon of silane radical, and R3 is a hydrogen atom or an alkyl radical, with an organosiloxane having terminal Si-bonded hydrogen atoms, in the presence of a hydrosilylation catalyst, in a second step reacting: the resulting hydrocarbon-siloxane copolymers containing Si-bonded hydrogen atoms with &agr;,&ohgr;-dialkenylsiloxane polymer in the presence of a hydrosilylation catalyst, and, if desired, in a third step, equilibrating: the resulting alkenyl-containing siloxane copolymers with an organopolysiloxane from the group consisting of linear organopolysiloxanes containing terminal triorganosiloxy groups, linear organopolysiloxanes containing terminal hydroxyl groups, branched organopolysiloxanes with or without hydroxyl groups, cyclic organopolysiloxanes, and copolymers of dioganosiloxane units and monoorganosiloxanes units.

    摘要翻译: 本发明提供了含烯基的硅氧烷共聚物,其通过使具有至少三个脂族双键的化合物(1)通式反应,其中R2是硅烷基的三价或四价烃,R 3是氢原子或烷基, 在具有硅键合氢原子的有机硅氧烷的存在下,在氢化硅烷化催化剂的存在下,在第二步骤中,使所得的含硅键合氢原子的烃 - 硅氧烷共聚物与α,ω-二烯基硅氧烷聚合物在氢化硅烷化存在下反应 催化剂,并且如果需要,在第三步骤中,平衡:得到的含烯基的硅氧烷共聚物与包含末端三有机甲硅烷氧基的线性有机聚硅氧烷,含有末端羟基的直链有机聚硅氧烷,具有或不具有羟基的支链有机聚硅氧烷的有机聚硅氧烷 ,环状有机聚硅氧烷和二糖的共聚物 硅氧烷单元和单有机硅氧烷单元。

    Polymeric organosilicon compounds, their production and use
    58.
    发明授权
    Polymeric organosilicon compounds, their production and use 失效
    聚合有机硅化合物,其生产和使用

    公开(公告)号:US06258913B1

    公开(公告)日:2001-07-10

    申请号:US09341485

    申请日:1999-08-13

    IPC分类号: C08G7708

    摘要: The invention relates to novel polymeric organosilicon compounds comprising hydrocarbon radicals with at least one aliphatic carbon-carbon double bond in a terminal position. To produce these compounds, (A) compounds containing at least one aliphatic carbon-carbon double bond per molecule, in a terminal position, are reacted with (B) oligomeric or polymeric organosilicon compounds containing units of the general formula R1R2SiO1/2 and units of the general formula HRSiO and/or HSiO3/2 and possibly units of the general formula R2SiO, where R is a monovalent, possibly substituted, hydrocarbon radical with between 1 and 18 carbon atoms per radical, which is free of aliphatic carbon-carbon double bonds, and R1 is a monovalent hydrocarbon radical with between 1 and 18 carbon atoms per radical which has at least one aliphatic carbon-carbon double bond in a terminal position, subject to the condition that the sum of the units HRSiO and R1R2SiO1/2 on average is greater than 2.0 if (B) contains no HSiO3/2 units, and the number of R1 radicals per molecule is greater than the number of Si-bonded hydrogen atoms, in the presence of (C) catalysts promoting the addition of Si-bonded hydrogen to aliphatic double-bonds. The ratio of aliphatic double bonds in components (A) and (B) to Si-bonded hydrogen in component (B) is between 1.5 and 10, subject to the condition that the polymeric organosilicon compounds on average contain more than two hydrocarbon radicals with at least one aliphatic carbon-carbon double bond in a terminal position.

    摘要翻译: 本发明涉及包含在最终位置具有至少一个脂族碳 - 碳双键的烃基的新型聚合物有机硅化合物。 为了制备这些化合物,(A)在每个分子中含有至少一个脂族碳 - 碳双键的化合物在末端与(B)含有通式R 1 R 2 SiO 1/2单元的低聚或聚合有机硅化合物反应, 通式HRSiO和/或HSiO3 / 2以及通式R2SiO的可能单元,其中R是每个基团具有1至18个碳原子的单价可能取代的烃基,其不含脂族碳 - 碳双键 并且R 1是每个基团具有1至18个碳原子的单价烃基,其在末端具有至少一个脂族碳 - 碳双键,条件是平均来说单位HRSiO和R 1 R 2 SiO 1/2的总和 如果(B)不含有HSiO3 / 2单元,并且在(C)催化剂的存在下,每分子的R1基团数目大于Si键合的氢原子的数目,则大于2.0,促进添加 硅键键合到脂肪族双键。 组分(B)中组分(A)和(B)中的脂族双键与Si键合的氢的比例为1.5至10,条件是聚合物有机硅化合物平均含有多于两个烃基, 在末端位置具有至少一个脂族碳 - 碳双键。