Process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers and their use
    1.
    发明授权
    Process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers and their use 有权
    用于制备SiOC连接的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物的方法及其用途

    公开(公告)号:US07825205B2

    公开(公告)日:2010-11-02

    申请号:US11956423

    申请日:2007-12-14

    IPC分类号: C08G77/46

    摘要: The invention relates to a process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers having (AB) repeat units, via reaction by methods known per se of polyetherdiols with a stoichiometric excess of α,ω-dihydropolydimethylsiloxanes, in the presence of one or more compounds of elements of main group 13 and/or of transition group 3 as catalyst, which comprises, after completed reaction of the alcohol component, continuing the reaction until no remaining ≡Si(H) groups are detectable by a gas-volumetric method, and also to the compounds thus prepared, and to their use as surfactant additives for the production of polyurethane ether foams.

    摘要翻译: 本发明涉及一种制备具有(AB)重复单元的SiOC连接的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物的方法,其通过本身已知的聚醚二醇与化学计量过量的α,ω-二氢聚二甲基硅氧烷的反应,在存在下 的主要组分13和/或过渡组3的元素的一种或多种化合物作为催化剂,其包括在醇组分完全反应之后继续反应,直到没有剩余的≡Si(H)基团可被气 - 体积法,以及由此制备的化合物,以及它们作为用于生产聚氨酯醚泡沫的表面活性剂添加剂的用途。

    Process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers and their use
    2.
    发明授权
    Process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers and their use 有权
    用于制备SiOC连接的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物的方法及其用途

    公开(公告)号:US07825209B2

    公开(公告)日:2010-11-02

    申请号:US11956483

    申请日:2007-12-14

    IPC分类号: C08G77/04 C08G77/06 C08G77/08

    CPC分类号: C08G77/46 C08L83/12

    摘要: The invention relates to a process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers having (AB) repeat units, via reaction of one or more polyetherdiols with a stoichiometric excess of α,ω-dihydropolydimethylsiloxanes and at least one tertiary amine as catalyst, which comprises, after completed reaction of the alcohol component, continuing the reaction in the presence of small amounts of water until no remaining ≡Si(H) groups are detectable by a gas-volumetric method.

    摘要翻译: 本发明涉及通过一种或多种聚醚二醇与化学计量过量的α,ω-二氢聚二甲基硅氧烷和至少一种叔胺的反应来制备具有(AB)重复单元的SiOC连接的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物的方法 作为催化剂,其包括在醇组分完全反应之后,在少量水存在下继续反应,直到通过气体 - 体积方法不能检测到剩余的≡Si(H)基团。

    Linear polydimethylsiloxane-polyoxyalkylene block copolymers linked via Si-C groups and via carboxylic ester groups, a process for preparing them and their use
    4.
    发明授权
    Linear polydimethylsiloxane-polyoxyalkylene block copolymers linked via Si-C groups and via carboxylic ester groups, a process for preparing them and their use 失效
    通过Si-C基团和羧酸酯基团连接的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物,其制备方法及其用途

    公开(公告)号:US07754778B2

    公开(公告)日:2010-07-13

    申请号:US12179944

    申请日:2008-07-25

    IPC分类号: C08G77/06 C08G77/04 C08J9/00

    CPC分类号: C08G77/46

    摘要: The invention provides linear polydimethylsiloxane-polyoxyalkylene block copolymers containing Si—C groups and carboxylic ester groups and having repeating (A1BA2B) units where A1 and A2 are two different polydimethylsiloxane units of the general formula (I) with a number of Si atoms N=(n+2) of 15≦N≦30 and NA1≠NA2 and B is a unit of the formula (II) —CH2—CH2—(CH2)a—CO[O—CH2—CH(R)]c—O-[D-O]e—[—CH2—CH(R)—O]d—OC—(CH2)b—CH2—CH2— (II) where R independently at each occurrence is H, —CH3 or —C2H5, a and b independently of one another are 0 to 20, c and d independently of one another are values≧1, e is 0 or 1 and D is a hydrocarbon radical having 2 to 10 C atoms, the overall molar weight of the unit of the formula II being from 600 to 10 000 g/mol, with the proviso that the average mixed molar weight of the polydimethylsiloxane units (A1+A2) is from >1665 to 0% to ≦50% by weight, based on the overall weight of [O—CH2—CH(R)] in B, a process for preparing them and their use.

    摘要翻译: 本发明提供含有Si-C基团和羧酸酯基并具有重复(A1BA2B)单元的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物,其中A1和A2是通式(I)的两种不同聚二甲基硅氧烷单元,其数量为Si原子N =( (II)-CH 2 -CH 2 - (CH 2)a -CO [O-CH 2 -CH(R)] c-O-(CH 2)n - [DO] e - [ - CH 2 -CH(R)-O] d-OC-(CH 2)b -CH 2 -CH 2 - (II)其中R各自独立地为H,-CH 3或-C 2 H 5,a和b 彼此独立地为0至20,c和d彼此独立地为值≧1,e为0或1,D为具有2至10个C原子的烃基,式II的单元的总摩尔量 是从600至10000g / mol,条件是聚二甲基硅氧烷单元(A1 + A2)的平均混合摩尔数为> 1665至<1998g / mol,[O-CH 2 -CH(R )],其中R = H为> 0%至&lt; nlE; 50%为重量 ht,基于B中[O-CH 2 -CH(R)]的总重量,其制备方法及其用途。

    Process and apparatus for continuous hydrosilylation
    5.
    发明授权
    Process and apparatus for continuous hydrosilylation 有权
    连续氢化硅烷化的方法和装置

    公开(公告)号:US06291622B1

    公开(公告)日:2001-09-18

    申请号:US09470533

    申请日:1999-12-22

    IPC分类号: C08G7706

    CPC分类号: C08G77/46 C08G77/38

    摘要: A continuous process for preparing organomodified polysiloxanes by the transition metal-catalyzed addition of polysiloxanes containing SiH groups onto substances containing C—C multiple bonds, in particular a process for the continuous hydrosilylation of substances containing C—C multiple bonds, which comprises introducing the reactants, in the presence or absence of a homogeneous or heterogeneous catalyst, into a loop-like, heatable and coolable reaction circuit which has a static mixing element and/or a dynamic mixing element to mix starting materials and product formed, leaving the reaction mixture in the reaction circuit until a predetermined degree of conversion has been reached and subsequently transferring the reaction mixture still containing starting materials to a tube reactor to complete the reaction and taking it off via a receiver. In addition, a suitable industrial apparatus for carrying out the process of the invention is described.

    摘要翻译: 通过过渡金属催化加成含有SiH基团的聚硅氧烷到含有多个CC的物质的物质,特别是含有CC多键的物质的连续氢化硅烷化方法,用于制备有机改性聚硅氧烷的连续方法,其包括在存在下引入反应物 或不存在均相或多相催化剂,形成环状,可加热和可冷却的反应回路,其具有静态混合元件和/或动态混合元件以混合起始材料和形成的产物,将反应混合物留在反应回路中直到 已经达到预定的转化率,随后将仍含有原料的反应混合物转移到管式反应器中以完成反应,并通过接收器将其取出。 此外,描述了用于实施本发明的方法的合适的工业设备。

    LINEAR POLYDIMETHYLSILOXANE-POLYOXYALKYLENE BLOCK COPOLYMERS LINKED VIA SIC GROUPS AND VIA CARBOXYLIC ESTER GROUPS, A PROCESS FOR PREPARING THEM AND THEIR USE
    6.
    发明申请
    LINEAR POLYDIMETHYLSILOXANE-POLYOXYALKYLENE BLOCK COPOLYMERS LINKED VIA SIC GROUPS AND VIA CARBOXYLIC ESTER GROUPS, A PROCESS FOR PREPARING THEM AND THEIR USE 失效
    线性聚二甲基硅氧烷 - 聚氧乙烯嵌段共聚物通过SIC基团和通过羧酸酯基团连接,其制备方法及其使用

    公开(公告)号:US20090030097A1

    公开(公告)日:2009-01-29

    申请号:US12179944

    申请日:2008-07-25

    IPC分类号: C08G77/06 C08G77/04 C08J9/00

    CPC分类号: C08G77/46

    摘要: The invention provides linear polydimethylsiloxane-polyoxyalkylene block copolymers containing Si—C groups and carboxylic ester groups and having repeating (A1BA2B) units where A1 and A2 are two different polydimethylsiloxane units of the general formula (I) with a number of Si atoms N=(n+2) of 15≦N≦30 and NA1≠NA2 and B is a unit of the formula (II) —CH2—CH2—(CH2)a—CO[O—CH2—CH(R)]c—O-[D-O]e—[—CH2—CH(R)—O]d—OC—(CH2)b—CH2—CH2— (II) where R independently at each occurrence is H, —CH3 or —C2H5, a and b independently of one another are 0 to 20, c and d independently of one another are values ≧1, e is 0 or 1 and D is a hydrocarbon radical having 2 to 10 C atoms, the overall molar weight of the unit of the formula II being from 600 to 10000 g/mol, with the proviso that the average mixed molar weight of the polydimethylsiloxane units (A1+A2) is from >1665 to 0% to ≦50% by weight, based on the overall weight of [O—CH2—CH(R)] in B, a process for preparing them and their use.

    摘要翻译: 本发明提供含有Si-C基团和羧酸酯基并具有重复(A1BA2B)单元的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物,其中A1和A2是通式(I)的两种不同聚二甲基硅氧烷单元,其数量为Si原子N =( (II)-CH2-CH2-(CH2)a-CO [O-CH2-CH(R)] cO的单元,其中n为0≤n≤30且NA1 < - [DO] e - [ - CH 2 -CH(R)-O] d-OC-(CH 2)b -CH 2 -CH 2 - (II)其中R在每次出现时独立地为H,-CH 3或-C 2 H 5,a和 b彼此独立地为0至20,c和d彼此独立地为值> = 1,e为0或1,D为具有2至10个C原子的烃基,单位的总摩尔量 式II为600至10000g / mol,条件是聚二甲基硅氧烷单元(A1 + A2)的平均混合摩尔数为> 1665至<1998g / mol,[O-CH 2 -CH( R)],相对于B中的[O-CH 2 -CH(R)]的总重量,RH> 0重量%〜<50重量% 一个准备和使用它们的过程。

    Process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers and their use
    7.
    发明申请
    Process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers and their use 有权
    用于制备SiOC连接的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物的方法及其用途

    公开(公告)号:US20080153995A1

    公开(公告)日:2008-06-26

    申请号:US11956483

    申请日:2007-12-14

    IPC分类号: C08G77/42

    CPC分类号: C08G77/46 C08L83/12

    摘要: The invention relates to a process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers having (AB) repeat units, via reaction of one or more polyetherdiols with a stoichiometric excess of α,ω-dihydropoly-dimethylsiloxanes and at least one tertiary amine as catalyst, which comprises, after completed reaction of the alcohol component, continuing the reaction in the presence of small amounts of water until no remaining ≡Si(H) groups are detectable by a gas-volumetric method.

    摘要翻译: 本发明涉及通过一种或多种聚醚二醇与化学计量过量的α,ω-二氢聚二甲基硅氧烷和至少一种聚醚二醇的反应制备具有(AB)重复单元的SiOC连接的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物的方法 叔胺作为催化剂,其包括在醇组分完全反应之后,在少量水存在下继续反应,直到通过气体容积法不能检测到剩余的≡Si(H)基团。

    Method for synthesizing aluminum hydride
    9.
    发明授权
    Method for synthesizing aluminum hydride 失效
    氢化铝合成方法

    公开(公告)号:US5670129A

    公开(公告)日:1997-09-23

    申请号:US564842

    申请日:1995-11-29

    IPC分类号: C01B6/06 C01B6/00

    CPC分类号: C01B6/06

    摘要: The invention relates to a method for the preparation of toluene solutions of aluminum hydride, which is free of ethers and halides, characterized in that the complex, bound magnesium halide portion is precipitated and removed from halogen magnesium aluminum hydridohalides, which optionally are present in tetrahydrofuran (THF) solutions, of the general formula (Mg.sub.2 X.sub.3 (THF).sub.y).sup.+ (AlH.sub.3 X).sup.- wherein X is chlorine, bromine or iodine Y is a number from 0 to 6, by the consecutive addition of hexane and toluene with successive removal by distillation of hexane and optionally of THF at boiling temperatures up to 90.degree. C. Solutions of aluminum hydride in toluene are obtained, which can be used directly for reductions or yield solid aluminum hydride after removal of the solvent.

    摘要翻译: 本发明涉及一种制备氢化铝的甲苯溶液的方法,该方法不含醚和卤化物,其特征在于复合结合的卤化镁部分被沉淀并从卤代卤化镁铝卤化物中除去 (THF)溶液,其中X是氯,溴或碘,通式(Mg 2 X 3(THF)y)+(AlH 3 X))是0至6的数,通过连续加入己烷和甲苯,连续除去 在高达90℃的沸点温度下蒸馏己烷和任选的THF。获得氢化铝在甲苯中的溶液,其可以直接用于在除去溶剂之后还原或产生固体氢化铝。