利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

39 条记录 (耗时 0.018 秒)

    Low viscosity silicone sealant
    3.
    发明授权
    Low viscosity silicone sealant 失效
    低粘度硅胶密封剂

    公开(公告)号：US5656710A

    公开(公告)日：1997-08-12

    申请号：US481908

    申请日：1995-06-07

    申请人： Frederick F. Newberth, III ,  Hsien-Kun Chu ,  Robert P. Cross ,  Peter A. Salamon

    发明人： Frederick F. Newberth, III ,  Hsien-Kun Chu ,  Robert P. Cross ,  Peter A. Salamon

    IPC分类号： C08F290/14 ,  C08L83/04 ,  C08L83/10 ,  C09K3/10 ,  C08G77/08

    CPC分类号： C09K3/1018 ,  C08F290/148 ,  C08L83/04 ,  C08L83/10 ,  C08G77/12 ,  C08G77/16 ,  C08G77/20 ,  C08G77/80

    摘要： An impregnation sealant composition comprises a low viscosity vulcanizable silicone. The silicone is selected from the group consisting of (i) a heat curable silicone composition formed as the reaction product in the presence of a platinum catalyst of a first silicon containing material containing at least two SiH functionalities and having a molecular weight less than 2000 with a second silicon containing material containing at least two ethylenically unsaturated functionalities and having a molecular weight less than 2000, said silicone composition having a ratio of SiH to Si-ethylenically unsaturated functionalities of from about 0.8 to about 1.2; and (ii) a room temperature vulcanizing silicone composition formed as the reaction product of a silicone fluid containing at least two SiOH functionalities and having a molecular weight less than 2000 with a silane cross-linker of formula (I):R.sub.n Si(X).sub.4-n (I),wherein the R groups are the same or different and selected from the group consisting of hydrogen, C1-C12 alkyl, C6-C12 aryl, C7-C18 arylalkyl, C7-C18 alkylaryl, haloalkyl, haloaryl, and monovalent ethylenically unsaturated radicals, X is a hydrolyzable functionality selected from the group consisting of alkoxy, oximino, enoloxy, acetoxy, amino, and amido, and n is an integer of from 0 to 1, with the proviso that when X is alkoxy, the reaction is in the presence of an organolithium, titanium or tin catalyst, said silicone composition having at least 1 silane per SiOH functionality.

    摘要翻译： 浸渍密封剂组合物包含低粘度可硫化硅酮。 有机硅选自（i）在含有至少两个SiH官能团并具有小于2000的分子量的第一含硅材料的铂催化剂存在下形成的作为反应产物的可热固化的有机硅组合物， 含有至少两个烯属不饱和官能团并且分子量小于2000的第二含硅材料，所述硅氧烷组合物具有约0.8至约1.2的SiH与Si-烯属不饱和官能度的比率; 和（ii）室温硫化硅氧烷组合物，其形成为含有至少两个SiOH官能团并且具有小于2000的分子量的硅氧烷流体与式（I）的硅烷交联剂的反应产物：RnSi（X）4 -n（I），其中R基团相同或不同，并且选自氢，C 1 -C 12烷基，C 6 -C 12芳基，C 7 -C 18芳基烷基，C 7 -C 18烷基芳基，卤代烷基，卤代芳基和一价 烯键式不饱和基，X是选自烷氧基，肟基，烯氧基，乙酰氧基，氨基和酰氨基的可水解官能团，n为0-1的整数，条件是当X为烷氧基时，反应 在有机锂，钛或锡催化剂存在下，所述硅氧烷组合物具有至少1个硅烷/ SiOH官能团。

    Process for preparing alkoxy-terminated organosiloxane fluids using organo-lithium reagents
    4.
    发明授权
    Process for preparing alkoxy-terminated organosiloxane fluids using organo-lithium reagents 失效
    使用有机锂试剂制备烷氧基封端的有机硅氧烷流体的方法

    公开(公告)号：US5300608A

    公开(公告)日：1994-04-05

    申请号：US14143

    申请日：1993-02-19

    申请人： Hsien-Kun Chu ,  Robert P. Cross ,  Patrick J. Courtney ,  David I. Crossan

    发明人： Hsien-Kun Chu ,  Robert P. Cross ,  Patrick J. Courtney ,  David I. Crossan

    IPC分类号： C08F299/08 ,  C08F290/00 ,  C08G77/08 ,  C08G77/18 ,  C08G77/20 ,  C08G77/38 ,  C08L83/04 ,  C09J183/00 ,  C09J183/04

    CPC分类号： C08G77/20 ,  C08G77/08 ,  C08G77/18

    摘要： The present invention relates to a process for preparing an alkoxy silyl-terminated material, which has at least one alkoxy group on at least one terminal end, said process comprising reacting in the presence of a catalytically effective amount of an organo-lithium reagent an alkoxysilyl-terminated first reactant with a second reactant having at least one end of its chain terminating in silanol groups. The alkoxy silyl-terminated material may have a variety of polymer backbone types such as silicone, polyurethane, polyamide and the like. These materials are intended to cure by either moisture cure or by dual moisture and photo cure mechanisms. The alkoxy silyl-terminated material is preferably an organopoly-siloxane having alkoxy groups at its terminal ends. The resultant alkoxy-terminated organopolysiloxanes are substantially stable materials as measured by preservation and maintenance of viscosity values (cps) over time.

    摘要翻译： 本发明涉及在至少一个末端具有至少一个烷氧基的烷氧基甲硅烷基封端材料的制备方法，所述方法包括在催化有效量的有机锂试剂存在下，将烷氧基甲硅烷基 具有第二反应物的终止的第一反应物，其第二反应物的至少一端末端以硅烷醇基团。 烷氧基甲硅烷基封端的材料可以具有各种聚合物主链类型，例如硅树脂，聚氨酯，聚酰胺等。 这些材料旨在通过湿气固化或双重湿度和光固化机制来固化。 烷氧基甲硅烷基封端的材料优选为其末端具有烷氧基的有机聚硅氧烷。 所得到的烷氧基封端的有机聚硅氧烷是通过随时间保持和维持粘度值（cps）测量的基本稳定的材料。

    Radiation surface-curable, room temperature vulcanizing silicone compositions
    6.
    发明授权
    Radiation surface-curable, room temperature vulcanizing silicone compositions 失效
    辐射表面可固化，室温硫化硅酮组合物

    公开(公告)号：US5498642A

    公开(公告)日：1996-03-12

    申请号：US276019

    申请日：1994-07-15

    申请人： Hsien-Kun Chu ,  Robert P. Cross

    发明人： Hsien-Kun Chu ,  Robert P. Cross

    IPC分类号： B29C70/84 ,  C08F2/46 ,  C08G77/08 ,  C08G77/18 ,  C08G77/20 ,  C08K5/00 ,  C08L83/04 ,  C09D4/00 ,  H05K3/28

    CPC分类号： B29C70/84 ,  C08G77/08 ,  C08G77/18 ,  C08G77/20 ,  C08K5/0025 ,  C08L83/04 ,  C09D4/00 ,  C08G77/16 ,  H05K3/287

    摘要： A radiation surface-curable RTV silicone composition which subsequent to radiation surface curing thereof, is interiorly moisture-curable in character. Such radiation surface-curable, interiorly moisture-curable RTV silicone composition comprises: a silanol-containing silicone; a silane cross-linker for the silicone, such cross-linker having joined directly to a silicon atom thereof an ethylenically unsaturated functional group and at least two hydrolyzable functional groups; and a photoinitiator effective for radiation surface curing of the silicone composition. Also disclosed is a "liquid potting system" formulation, which is irradiated subsequent to dispensing thereof at the potting locus, so that the radiation surface-cured skin layer overlies and contains (cooperatively with the associated bounding surface(s) of the potting locus) the uncured liquid, so that the potted structure or material is encapsulated in a liquid (damping) medium.

    摘要翻译： 辐射表面可固化的RTV硅氧烷组合物，其辐射表面固化之后，在内部湿度可固化的性质。 这种辐射表面可固化的，内部湿气固化的RTV硅氧烷组合物包括：含硅烷醇的硅氧烷; 用于硅氧烷的硅烷交联剂，这种交联剂直接与其硅原子连接的烯属不饱和官能团和至少两个可水解官能团; 以及对硅氧烷组合物的辐射表面固化有效的光引发剂。 还公开了一种“液体灌封系统”配方，其在其在灌封区域分配后照射，使得辐射表面固化的表皮层覆盖并包含（与灌封轨迹的相关联的边界表面配合） 未固化的液体，使得盆状结构或材料被包封在液体（阻尼）介质中。

    Photocurable silicone composition, and method of making the same
    9.
    发明授权
    Photocurable silicone composition, and method of making the same 失效
    光固化硅酮组合物及其制造方法

    公开(公告)号：US5179134A

    公开(公告)日：1993-01-12

    申请号：US615200

    申请日：1990-11-19

    申请人： Hsien-Kun Chu ,  Robert P. Cross ,  David I. Crossan

    发明人： Hsien-Kun Chu ,  Robert P. Cross ,  David I. Crossan

    IPC分类号： C08F2/50 ,  C08G77/50 ,  C08L83/14 ,  C09D183/14 ,  C09K3/10

    CPC分类号： C09K3/1018 ,  C08G77/50 ,  C08L83/14 ,  C09D183/14 ,  C09K2003/1062 ,  C09K2200/0247 ,  C09K2200/0625

    摘要： An acryloxy-functional capped silicone formed as a reaction product of:(i) a silyl diacrylate compound of the formula: ##STR1## wherein: R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, and R.sub.10 are independently selected from hydrogen, halo, and organo radicals; andn is an integer having a value of from 1 to 4; and(ii) a silicone having at least one functionality which is reactive with an acryloxy functionality of the silyl diacrylate compound to yield the acryloxy-functional capped silicone.The capped silicone may suitably be formulated with an effective amount of a photoinitiator for curing of the acryloxy-functional capped silicone under photoinitiating curing conditions. The silicone functionality which is reactive with the acryloxy functionality of the silyl diacrylate compound may be --OH, or other labile hydrogen-containing substituent. Preferably, the silicone is a hydroxy-terminated linear polydiorganosiloxane. The compositions of the invention are usefully employed as sealants, conformal coatings, potting materials, and the like, and are readily curable with UV radiation.

    摘要翻译： 形成作为以下反应产物的丙烯酰氧基官能的封端硅氧烷：（i）下式的甲硅烷基二丙烯酸酯化合物：其中：R1，R2，R3，R4，R5，R6，R7，R8，R9和R10为 独立地选自氢，卤素和有机基团; n为1〜4的整数， 和（ii）具有至少一个与甲硅烷基二丙烯酸酯化合物的丙烯酰氧基官能团反应的官能团的硅氧烷，以产生丙烯酰氧基官能的封端硅氧烷。 封端的硅氧烷可以适当地配制有效量的光引发剂，用于在光引发固化条件下固化丙烯酰氧基官能的封端硅氧烷。 与甲硅烷基二丙烯酸酯化合物的丙烯酰氧基官能团反应的硅酮官能团可以是-OH或其它不稳定的含氢取代基。 优选地，硅氧烷是羟基封端的线性聚二有机硅氧烷。 本发明的组合物有效地用作密封剂，保形涂料，灌封材料等，并且易于用UV辐射固化。