Oxime containing compositions which crosslink in the presence of
moisture to form elastomers at room temperature
    3.
    发明授权
    Oxime containing compositions which crosslink in the presence of moisture to form elastomers at room temperature 失效
    含肟的组合物在水分存在下交联以在室温下形成弹性体

    公开(公告)号:US4503210A

    公开(公告)日:1985-03-05

    申请号:US573735

    申请日:1984-01-25

    摘要: Compositions which are stable in the absence of moisture, but crosslink to form elastomers in the presence of moisture at room temperature comprising a diorganopolysiloxane having terminal condensable groups and a silicon compound having at least three oxime groups per molecule bonded to silicon via oxygen, in which a mixture containing a silane having four oxime groups bonded to a silicon atom via oxygen, and a silane having a hydrocarbon radical bonded to a silicon atom via a SiC-bonding and having three oxime groups bonded to the silicon atom via oxygen, or an oligomer of the silane mixture is substituted for at least a portion of the silicon compound having at least three oxime groups per molecule bonded to silicon via oxygen.

    摘要翻译: 在不存在水分的情况下稳定但在室温下存在水分时形成弹性体的组合物包含具有末端可缩合基团的二有机聚硅氧烷和每分子具有至少三个肟基团的硅化合物通过氧与硅键合,其中 含有具有通过氧连接到硅原子的具有四个肟基的硅烷的混合物,以及具有通过SiC键合键合到硅原子的烃基并具有通过氧连接到硅原子上的三个肟基的硅烷或低聚物 的硅烷混合物的至少一部分取代至少一部分每分子具有至少三个肟基团的硅化合物,其通过氧与硅键合。

    Organopolysiloxane elastomers
    4.
    发明授权
    Organopolysiloxane elastomers 失效
    有机聚硅氧烷弹性体

    公开(公告)号:US4301056A

    公开(公告)日:1981-11-17

    申请号:US129943

    申请日:1980-03-13

    CPC分类号: C08K9/06

    摘要: Elastomers which are obtained by crosslinking an organopolysiloxane composition containing a diorganopolysiloxane, an organic peroxide and calcium hydroxide which has been treated with an organosilicon compound to impart hydrophobic properties thereto.

    摘要翻译: 通过交联含有二有机聚硅氧烷,有机过氧化物和氢氧化钙的有机聚硅氧烷组合物得到的弹性体,其已用有机硅化合物处理以赋予其疏水性。

    Process for preparing diorganopolysiloxanes having terminal
triorganosiloxy units
    5.
    发明授权
    Process for preparing diorganopolysiloxanes having terminal triorganosiloxy units 失效
    制备具有末端三有机甲硅烷氧基单元的二有机聚硅氧烷的方法

    公开(公告)号:US4975510A

    公开(公告)日:1990-12-04

    申请号:US270131

    申请日:1988-11-14

    CPC分类号: C08G77/32 C08G77/06 C08G77/20

    摘要: A process for preparing diorganopolysiloxanes containing terminal triorganosiloxy groups which comprises reacting in a 1st step, a cyclic diorganopolysiloxane and/or diorganodichlorosilane hydrolyzate with from 0.05 to 3 percent by weight of triorganochlorosilane, based on the weight of the cyclic diorganopolysiloxane and/or diorganodichlorosilane hydrolyzate employed in the presence of from 1 to 50 ppm by weight of phosphonitrile chloride, based on the total weight of the organosilicon compounds employed, to form a reaction mixture containing .alpha.-triorganosiloxy-.omega.-chlorodiorganopolysiloxane, and in a 2nd step, adding to the reaction mixture obtained in the 1st step and containing the .alpha.-triorganosiloxy-.omega.-chlorodiorganopolysiloxane, a diorganopolysiloxane having one Si-bonded hydroxyl group in each of the terminal units in an amount of from 1 to 1.2 gram-moles of Si-bonded hydroxyl group in this diorganopolysiloxane per gram-atom of Si-bonded chlorine in the triorganochlorosilane, and in a 3rd step, adding hexaorganodisilazane to the reaction mixture of the 2nd step in order to deactivate the phosphonitrile chloride and remove hydrogen chloride from the diorganopolysiloxanes containing terminal triorganosiloxy groups and thereafter removing the low-boiling components by distillation.

    摘要翻译: 一种制备含有末端三有机甲硅烷氧基的二有机聚硅氧烷的方法,其包括在第一步中,以0.05至3重量%的三有机氯硅烷为基础的环状二有机聚硅氧烷和/或二有机二氯硅烷水解产物,基于所用的环状二有机基聚硅氧烷和/或二有机二氯硅烷水解产物的重量 在1至50ppm重量的磷腈氯化物的存在下,基于所用有机硅化合物的总重量,形成含有α-三有机甲硅烷氧基-ω-氯二羟基聚硅氧烷的反应混合物,并且在第二步骤中,向反应中加入 混合物,其含有α-三有机甲硅烷氧基-ω-氯代二羟基聚硅氧烷,每个末端单元中具有1至1.2克摩尔Si键合的羟基的量的每个末端单元中具有一个Si键合的羟基的二有机基聚硅氧烷 这种二有机聚硅氧烷每克原子中的三键硅键合氯 并且在第3步骤中,向第2步骤的反应混合物中加入六有机二硅氮烷,以使磷腈氯化物失活,并从含有三有机甲硅烷氧基的二有机聚硅氧烷中除去氯化氢,然后通过蒸馏除去低沸点组分。

    Protective coatings for asphaltic concrete surfaces and methods for
forming the same
    6.
    发明授权
    Protective coatings for asphaltic concrete surfaces and methods for forming the same 失效
    沥青混凝土表面防护涂料及其形成方法

    公开(公告)号:US4600657A

    公开(公告)日:1986-07-15

    申请号:US697377

    申请日:1985-02-01

    摘要: Asphaltic concrete surfaces are protected from undesirable changes by applying a composition comprising a diorganopolysiloxane containing rod-shaped styrene-n-butyl acrylate copolymers which are obtained from the free-radical copolymerization of said monomers in the presence of the diorganopolysiloxane onto an asphaltic concrete surface and thereafter crosslinking the diorganopolysiloxane composition to form an elastomeric coating thereon. The asphaltic concrete surface may be coated with a primer prior to the application of the crosslinkable diorganopolysiloxane composition in order to improve the adhesion of the resultant crosslinked elastomer containing the rod-shaped copolymers. These asphaltic concrete coatings are especially useful in, for example, hydraulic engineering.

    摘要翻译: 沥青混凝土表面通过应用包含含有棒状苯乙烯 - 丙烯酸正丁酯共聚物的二有机聚硅氧烷共聚物来防止不期望的变化,所述二有机聚硅氧烷共聚物是在二有机聚硅氧烷存在下由所述单体的自由基共聚得到沥青混凝土表面, 然后将二有机聚硅氧烷组合物交联以在其上形成弹性体涂层。 沥青混凝土表面可以在施用可交联的二有机聚硅氧烷组合物之前用底漆涂覆,以改善所得到的含有棒状共聚物的交联弹性体的粘合性。 这些沥青混凝土涂层在例如水力工程中尤其有用。

    Process for the preparation of organopolysiloxanes
    8.
    发明授权
    Process for the preparation of organopolysiloxanes 失效
    制备有机聚硅氧烷的方法

    公开(公告)号:US4292423A

    公开(公告)日:1981-09-29

    申请号:US134407

    申请日:1980-03-27

    摘要: Organopolysiloxanes having substituted carbamoyloxy groups (.tbd.SiOCO--NH--) bonded to silicon via oxygen, which are prepared by reacting an organopolysiloxane containing Si-bonded hydroxyl groups with an organic isocyanate in the presence of an organic tin compound.The stability of the organopolysiloxanes containing carbamoyloxy groups may be improved if the organopolysiloxane having Si-bonded hydroxyl groups is reacted with an organic isocyanate in the presence of an organic tin compound which is supported on a solid carrier and then the reaction product is filtered under anhydrous conditions to remove the supported organic tin compound.

    摘要翻译: 在有机锡化合物的存在下,通过使含有Si键合的羟基的有机聚硅氧烷与有机异氰酸酯反应而制备的具有通过氧键接合到硅上的氨基甲酰氧基(3BOND SiOCO-NH-)的有机聚硅氧烷。 如果在负载在固体载体上的有机锡化合物存在下,如果具有Si键合的羟基的有机聚硅氧烷与有机异氰酸酯反应,则可以改善含有氨基甲酰氧基的有机聚硅氧烷的稳定性,然后将反应产物在无水 去除负载有机锡化合物的条件。

    Addition of Si-bonded hydrogen to an aliphatic multiple bond
    9.
    发明授权
    Addition of Si-bonded hydrogen to an aliphatic multiple bond 失效
    将Si键合的氢加成脂肪族多键

    公开(公告)号:US4276252A

    公开(公告)日:1981-06-30

    申请号:US85572

    申请日:1979-10-17

    摘要: Silicon containing compounds having Si-bonded hydrogen are added to an aliphatic multiple bond in the presence of a platinum catalyst selected from the group consisting of platinum compounds of the formula(R.sup.1)PtX.sub.2,where R.sup.1 represents a cyclic hydrocarbon radical or a substituted cyclic hydrocarbon radical having 2 aliphatic carbon-carbon double bonds, X is the same or different halogen atoms and/or the same or different alkyl radicals, and compounds of the formula(R.sub.2 SO)(Z)PtY.sub.2where R represents the same or different hydrocarbon radicals or substituted hydrocarbon radicals, Z represents a hydrocarbon having a carbon-carbon double bond and Y represents the same or different halogen atoms.An example of a platinum compound having the general formula(R.sup.1)PtX.sub.2,is dicyclopentadiene-platinum dichloride, while an example of a platinum compound having the general formula(R.sub.2 SO)(Z)PtY.sub.2is dimethylsulfoxide-ethylene-platinum-(II)-dichloride.

    摘要翻译: 在具有式(R1)PtX2的铂化合物的铂催化剂存在下,将具有Si键合氢的含硅化合物加入到脂肪族多重键中,其中R 1表示环状烃基或取代的环状烃 具有2个脂族碳 - 碳双键的基团,X是相同或不同的卤素原子和/或相同或不同的烷基,以及式(R2SO)(Z)PtY2的化合物,其中R表示相同或不同的烃基或 取代的烃基,Z表示具有碳 - 碳双键的烃,Y表示相同或不同的卤素原子。 具有通式(R1)PtX2的铂化合物的实例是二环戊二烯 - 二氯化铂,而具有通式(R2SO)(Z)PtY2的铂化合物的实例是二甲亚砜 - 乙烯 - 铂 - (II) - 二氯化物

    Anticorrosion coatings for porous concrete metal reinforcing structures
    10.
    发明授权
    Anticorrosion coatings for porous concrete metal reinforcing structures 失效
    多孔混凝土金属加固结构防腐涂料

    公开(公告)号:US4649066A

    公开(公告)日:1987-03-10

    申请号:US798048

    申请日:1985-11-14

    CPC分类号: E04C5/01 Y10T428/31663

    摘要: The present invention relates to a corrosion resistant coating for metal reinforcing structures that are used in porous concrete which comprises coating the metal reinforcing structures with an organopolysiloxane elastomer obtained by crosslinking a diorganopolysiloxane-based composition by the condensation reaction or by the addition of Si-bonded hydrogen to an aliphatic carbon-carbon double bond, in which the composition contains a copolymer that is obtained via a free radical copolymerization of styrene and a (meth)acrylic acid ester in the presence of the diorganopolysiloxane.

    摘要翻译: 本发明涉及一种用于多孔混凝土中的金属增强结构的耐腐蚀涂层,其包括用通过缩合反应交联二有机聚硅氧烷基组合物或通过加入Si键的有机聚硅氧烷弹性体来涂覆金属增强结构 氢至脂族碳 - 碳双键,其中组合物含有在二有机聚硅氧烷存在下通过苯乙烯和(甲基)丙烯酸酯的自由基共聚得到的共聚物。