Process for the continuous chlorination of olefins in the liquid phase
and an apparatus for carrying out the process
    2.
    发明授权
    Process for the continuous chlorination of olefins in the liquid phase and an apparatus for carrying out the process 失效
    在液相中连续氯化烯烃的方法和用于进行该方法的装置

    公开(公告)号:US4259264A

    公开(公告)日:1981-03-31

    申请号:US3341

    申请日:1979-01-15

    CPC分类号: C07C17/02

    摘要: In the chlorination of ethylene in the liquid phase, an excess stoichiometric amount of chlorine is normally used in order to achieve as complete as possible a conversion of the ethylene. Part of the excess chlorine reacts by substitution and thereby reduces the yield of desired 1,2-dichloroethane. The unreacted excess chlorine therefore has laboriously to be removed in subsequent reaction steps. As a result of the method according to the invention to limit the chlorine excess to less than 600 ppm by weight in the reaction cycle, these disadvantages can be obviated. The constant compliance with such a low chlorine excess without fluctuations is rendered possible in industrial operation by the arrangement according to the invention for the continuous recording of the chlorine concentration, even in the presence of catalysts.

    摘要翻译: 在液相中乙烯的氯化中,通常使用过量的化学计量的氯,以便尽可能地完成乙烯的转化。 部分过量的氯通过取代反应,从而降低了所需的1,2-二氯乙烷的产率。 因此,未反应的过量氯在随后的反应步骤中很难被除去。 作为根据本发明的方法在反应循环中将氯过量限制在小于600ppm(重量)的结果,可以避免这些缺点。 即使在存在催化剂的情况下,通过根据本发明的用于连续记录氯浓度的装置,在工业操作中,不依赖于这种低氯过剩而不发生波动也是可能的。

    METHOD FOR PRODUCING GRANULES FROM THERMOPLASTIC SILOXANE POLYMERS
    5.
    发明申请
    METHOD FOR PRODUCING GRANULES FROM THERMOPLASTIC SILOXANE POLYMERS 审中-公开
    从热塑性硅氧烷聚合物生产颗粒的方法

    公开(公告)号:US20100007039A1

    公开(公告)日:2010-01-14

    申请号:US11722206

    申请日:2005-11-24

    IPC分类号: B29B9/06

    摘要: Non-blocking polymer pellets are produced in spherical or nearly spherical form by introducing molten polymer directly from a polymerization reactor into a coolant and pelletizing just prior to, simultaneously with, or immediately following entry into the coolant such that residual heat allows the polymer pellets to change their shape to eliminate sharp corners, particularly cylindrical shapes, and assume a spherical-type morphology.

    摘要翻译: 通过将熔融聚合物直接从聚合反应器引入冷却剂并在恰好在进入冷却剂之前,同时或之后直接进入冷却剂并造粒,从而以球形或接近球形形式制备非阻塞性聚合物颗粒,使得剩余热量允许聚合物颗粒 改变它们的形状以消除尖角,特别是圆柱形,并呈现球形形态。

    Crosslinkable siloxane-urea copolymers
    6.
    发明授权
    Crosslinkable siloxane-urea copolymers 失效
    可交联的硅氧烷 - 脲共聚物

    公开(公告)号:US07345131B2

    公开(公告)日:2008-03-18

    申请号:US10886184

    申请日:2004-07-07

    IPC分类号: C08G77/26

    摘要: The invention relates to moisture-crosslinkable organopolysiloxane-polyurea block copolymers, to a process for preparing the crosslinkable organopolysiloxane-polyurea block copolymers, and to their use; to crosslinkable compositions comprising the crosslinkable organopolysiloxane-polyurea block copolymers, to the preparation of the crosslinkable compositions, to their vulcanization, and to the use of the vulcanizates.

    摘要翻译: 本发明涉及可湿交联的有机聚硅氧烷 - 聚脲嵌段共聚物,涉及一种制备可交联的有机聚硅氧烷 - 聚脲嵌段共聚物的方法及其用途; 包含可交联的有机聚硅氧烷 - 聚脲嵌段共聚物的可交联组合物,可交联组合物的制备,其硫化和硫化橡胶的使用。

    METHOD FOR PRODUCING ORGANOSILICON COMPOUNDS HAVING AMINO GROUPS
    7.
    发明申请
    METHOD FOR PRODUCING ORGANOSILICON COMPOUNDS HAVING AMINO GROUPS 有权
    生产具有氨基团的有机硅化合物的方法

    公开(公告)号:US20110301374A1

    公开(公告)日:2011-12-08

    申请号:US13126284

    申请日:2009-12-08

    IPC分类号: C07F7/10 C07F7/08

    CPC分类号: C08G77/452 C08G77/26

    摘要: Amino group-containing organosilicon compounds containing no or only a small fraction of Si-bonded hydroxyl groups are prepared by preparing an organosilicon compound containing amino groups and Si-bonded hydroxyl groups by equilibration in the presence of an equilibration catalyst, and reacting the resultant product with a cyclic silazane. The products are particularly useful as a monomer or macromere for the preparation of high molecular weight organic polymers containing organosilicon blocks.

    摘要翻译: 通过在平衡催化剂的存在下平衡制备含有氨基和Si键合的羟基的有机硅化合物,制备含有不含或仅少量Si键合的羟基的含氨基的有机硅化合物, 与环状硅氮烷。 该产品特别可用作制备含有机硅嵌段的高分子量有机聚合物的单体或大分子单体。

    CyclicOrganosilicon Compounds and the Use Thereof
    8.
    发明申请
    CyclicOrganosilicon Compounds and the Use Thereof 审中-公开
    环状有机硅化合物及其用途

    公开(公告)号:US20070270563A1

    公开(公告)日:2007-11-22

    申请号:US11573734

    申请日:2005-08-04

    IPC分类号: C08G77/04 C07D517/00

    CPC分类号: C07F7/10

    摘要: Siloxane-urea copolymers are easily prepared by reacting a bis- or poly[azasilacyclopentyl]-terminated compound with a hydroxyl-functional compound followed by reaction with di- or polyisocyanate. When a bis[hydroxyl]-functional compound is used, the resulting polymer may be reacted with additional di- or polyisocyanate, optionally in the presence of additional isocyanate-reactive compounds such as chain extenders.

    摘要翻译: 通过使双 - 或聚[氮杂环戊基] - 终止的化合物与羟基官能化合物反应,然后与二异氰酸酯或多异氰酸酯反应,可容易地制备硅氧烷 - 脲共聚物。 当使用双[羟基]官能化合物时,所得聚合物可以与额外的二异氰酸酯或多异氰酸酯反应,任选地在另外的异氰酸酯反应性化合物如扩链剂的存在下进行。

    Laminated glass with polysiloxane-urea copolymer
    9.
    发明申请
    Laminated glass with polysiloxane-urea copolymer 审中-公开
    层压玻璃与聚硅氧烷 - 脲共聚物

    公开(公告)号:US20060204765A1

    公开(公告)日:2006-09-14

    申请号:US10551610

    申请日:2004-04-01

    IPC分类号: B32B17/06

    摘要: A laminated glass comprises: A) at least one layer consisting of inorganic or organic glass and B) at least one layer consisting of a polysiloxane-urea copolymer which is obtained by reacting a mixture of linear polysiloxanes of general formula Q-T-SiR2O—(SiR2O)n—SiR2-T-Q and branched polysiloxanes of general formula (Q-T-SiR2O1/2)a(Q-T-SiRO2/2)b(Q-T-SiO3/2)c(R3SiO2/2)d(R2SiO2/2)c(RSiO3/2)f(SiO4/2)g with polyfunctional isocyanates. The laminates exhibit excellent moisture resistance.

    摘要翻译: 夹层玻璃包括:A)至少一层由无机或有机玻璃组成的层,以及B)由聚硅氧烷 - 脲共聚物组成的至少一层,其通过使通式QT-SiR 2 O-(SiR 2 O 2)n -SiR 2 -TQ和通式(QT-SiR 2 O)的支化聚硅氧烷, (QT-SiO 2/2)B(QT-SiO 3 / (R 3)(R 3)2(R 2)2(R 2) (SiO 2)2 SiO 2(SiO 2)2(C 1 -C 12) 4/2))与多官能异氰酸酯反应。 层压板表现出优异的耐湿性。