Organopolysiloxane composition
    1.
    发明授权
    Organopolysiloxane composition 有权
    有机聚硅氧烷组合物

    公开(公告)号:US06277941B1

    公开(公告)日:2001-08-21

    申请号:US09448282

    申请日:1999-11-24

    IPC分类号: C08G7708

    CPC分类号: C09D183/04 C08L2666/44

    摘要: An organopolysiloxane composition comprising (1) 100 parts by weight of an organopolysiloxane having at least two unsaturated groups per molecule, (2) 0.1-30 parts by weight of a liquid organohydrogenpolysiloxane having at least two hydrogen atoms attached directly to silicon atoms (≡Si—H bonds) per molecule, (3) 0.1-6.0 parts by weight of an addition reaction control agent prepared by mixing (a) an acetylene alcohol and (b) a silylated acetylene alcohol in a (b)/(a) ratio ranging from greater than 5 to no greater than 100 on a weight basis, and (4) a catalytic amount of a platinum metal catalyst.

    摘要翻译: 一种有机聚硅氧烷组合物,其包含(1)100重量份的每分子具有至少两个不饱和基团的有机聚硅氧烷,(2)0.1-30重量份具有至少两个氢原子的液态有机氢聚硅氧烷,其直接与硅原子(= Si -H键),(3)0.1-6.0重量份加成反应控制剂,其通过将(a)乙炔醇和(b)甲硅烷基化乙炔醇以(b)/(a)比范围 以重量计大于5至不大于100,和(4)催化量的铂金属催化剂。

    Curable silicone release composition and release sheet
    2.
    发明授权
    Curable silicone release composition and release sheet 失效
    可固化的硅氧烷防粘组合物和脱模片

    公开(公告)号:US5942591A

    公开(公告)日:1999-08-24

    申请号:US879053

    申请日:1997-06-19

    CPC分类号: C09D183/04

    摘要: A solventless curable silicone release composition contains (A) a branched organopolysiloxane having a vinyl group attached to a silicon atom at an end of its molecular chain, (B) an organohydrogenpolysiloxane having at least three SiH groups in a molecule, and (C) a platinum group metal catalyst. The composition is easily applicable to a thin gage and cures into a releasable silicone coating ensuring light release at high speeds. A release sheet having the cured coating formed thereon has improved release characteristics.

    摘要翻译: 无溶剂固化性有机硅剥离组合物含有(A)在其分子链末端具有与硅原子相连的乙烯基的支链有机聚硅氧烷,(B)分子中具有至少三个SiH基的有机氢聚硅氧烷,(C) 铂族金属催化剂。 该组合物易于应用于薄规格并固化成可释放的硅氧烷涂层,确保高速下的光释放。 具有形成在其上的固化涂层的剥离片具有改善的剥离特性。

    Silicone block polymers and their preparation
    7.
    发明授权
    Silicone block polymers and their preparation 失效
    硅酮嵌段聚合物及其制备方法

    公开(公告)号:US5202404A

    公开(公告)日:1993-04-13

    申请号:US673469

    申请日:1991-03-22

    摘要: Silicone block polymers are obtained by cohydrolysis of a both end reactive diorganopolysiloxane and a silane or a partial hydrolyzate thereof or curing a both end reactive diorganopolysiloxane and an organopolysiloxane at room temperature or elevated temperatures. They have improved flexibility, stain resistance, thermal shock resistance, and water repellency and are suitable to form hard coatings, moistureproof coatings and topcoats.

    摘要翻译: 硅酮嵌段聚合物通过在室温或升高的温度下通过双端活性二有机聚硅氧烷和硅烷或其部分水解产物的共水解或固化两端反应性二有机聚硅氧烷和有机聚硅氧烷获得。 它们具有改善的柔韧性,耐污染性,耐热冲击性和防水性,并且适用于形成硬涂层,防潮涂料和面漆。

    Method for improving mold releasability of a polymeric material
    8.
    发明授权
    Method for improving mold releasability of a polymeric material 失效
    提高聚合物材料脱模性的方法

    公开(公告)号:US4617335A

    公开(公告)日:1986-10-14

    申请号:US758149

    申请日:1985-07-23

    CPC分类号: C08K5/5415

    摘要: The invention provides an efficient method for releasing a shaped body of a polymeric material such as a foamed polyurethane resin from a mold in which the body has been molded without the problem of adhesion to the mold. The inventive method comprises admixing the polymeric material with a specific organopolysiloxane represented by the structural formulaR.sup.1.sub.3 Si--O--SiR.sup.2.sub.2 --O).sub.m (SiR.sup.2 A--O).sub.n SiR.sup.1.sub.3,in which A is a substituent group represented by the general formula --C.sub.x H.sub.2x --O--R, R being a monovalent hydrocarbon group having 8 to 30 carbon atoms but free from terminal unsaturation and x being zero or a positive integer not exceeding 4, R.sup.1 is a monovalent hydrocarbon group or the same group as A, R.sup.2 is a hydrogen atom or the same group as R.sup.1, and m and n are each zero or a positive integer with the proviso that at least one group denoted by A is contained in a molecule of the organopolysiloxane.

    摘要翻译: 本发明提供了一种用于从模具中释放聚合物材料如发泡聚氨酯树脂的成形体的有效方法,其中已经模制了本体,而没有粘附到模具的问题。 本发明的方法包括将聚合物材料与由结构式R 13 Si-O-SiR 22 -O)m(SiR 2 A-O)n SiR 13表示的特定有机聚硅氧烷混合,其中A是由通式-C x H 2 x -OR表示的取代基, R为碳原子数为8〜30,不含末端不饱和单价烃基,x为零或不超过4的正整数,R1为单价烃基或与A相同的基团,R2为氢原子或相同 基团为R 1,m和n各自为零或正整数,条件是由A表示的至少一个基团包含在有机聚硅氧烷的分子中。

    Aluminum nitride powder and thermally conductive grease composition
using the same
    10.
    发明授权
    Aluminum nitride powder and thermally conductive grease composition using the same 有权
    氮化铝粉末和使用其的导热油脂组合物

    公开(公告)号:US6136758A

    公开(公告)日:2000-10-24

    申请号:US209455

    申请日:1998-12-11

    摘要: An aluminum nitride powder having the surface treated with an organosilane represented by formula, R.sup.I.sub.a R.sup.II.sub.b SiY.sub.4-1-b, and/or a partial hydrolysis condensate thereof to acquire excellent moisture-proof, wherein R.sup.I represents a 6-20C alkyl group or a group formed by substituting halogen atom or atoms for part or all of the hydrogen atoms attached to carbon atoms of the 6-20C alkyl group, R.sup.II represents a 1-20C hydrocarbon group or a group formed by substituting halogen atom or atoms for part or all of the hydrogen atoms attached to carbon atoms of the 1-20C hydrocarbon group, Y represents a hydrolyzable group, a is an integer of 1 to 3 and b is an integer of 0 to 2, provided that a+b is an integer of 1 to 3; and a thermally conductive grease composition comprising (A) 50-95 weight % of the aforementioned surface-treated aluminum nitride powder and (B) 5 to 50 weight % of at least one base oil selected from the group consisting of liquid silicones, liquid hydrocarbons and fluorohydrocarbon oils, and further, if desired, (C) 0-30 weight % of a thicknener selected from the group consisting of zinc oxide, alumina, boron nitride and silicon carbide powders.

    摘要翻译: 具有用式表示的有机硅烷表面处理的氮化铝粉末,RIaRIIbSiY4-1-b和/或其部分水解缩合物,以获得优异的防湿性,其中RI表示6-20C烷基或由 用卤原子或原子取代与6-20C烷基的碳原子连接的部分或全部氢原子,RII表示1-20C的烃基或通过用卤原子或原子取代部分或全部氢 附着于1-20C烃基的碳原子的原子,Y表示可水解基团,a表示1〜3的整数,b表示0〜2的整数,条件是a + b为1〜3的整数。 和导热性润滑脂组合物,其包含(A)50-95重量%的上述表面处理的氮化铝粉末和(B)5至50重量%的至少一种基础油,其选自液体硅酮,液体烃 和氟代烃油,并且如果需要,(C)0-30重量%的选自氧化锌,氧化铝,氮化硼和碳化硅粉末的增稠剂。