Silicone pressure-sensitive adhesives
    2.
    发明授权
    Silicone pressure-sensitive adhesives 失效
    硅胶压敏粘合剂

    公开(公告)号:US5366809A

    公开(公告)日:1994-11-22

    申请号:US114862

    申请日:1993-09-02

    Abstract: A silicone pressure-sensitive adhesive composition having high adhesion and tack while having a high percentage of adhesive failure when peeled from substrates is disclosed, said composition consisting essentially of(A) 50 to 80 parts by weight of an MQ organopolysiloxane resin;(B) 20 to 50 parts by weight of a polydiorganosiloxane having at least 3 alkenyl groups in its molecule, with the proviso that the alkenyl group content of said polydiorganosiloxane is 0.1 to 4 mole percent, the total amount of components (A) and (B) being 100 parts by weight;(C) an organohydrogenpolysiloxane crosslinking agent having, on average, at least 3 SiH groups per molecule, the amount of said organohydrogenpolysiloxane being sufficient to provide a molar ratio of said SiH groups of component (C) to said alkenyl groups of component (B) in the range of 0.1 to

    Abstract translation: 公开了一种具有高粘附性和粘性的硅氧烷压敏粘合剂组合物,同时从基材上剥离时具有高百分比的粘合剂破坏性,所述组合物基本上由(A)50至80重量份的MQ有机聚硅氧烷树脂组成; (B)20〜50重量份的分子中具有至少3个烯基的聚二有机硅氧烷,前提条件是所述聚二有机硅氧烷的烯基含量为0.1〜4摩尔%,成分(A)和( B)为100重量份; (C)每分子平均具有至少3个SiH基团的有机氢聚硅氧烷交联剂,所述有机氢聚硅氧烷的量足以提供组分(C)的所述SiH基团与组分(B)的所述链烯基的摩尔比, 在0.1至<1.0的范围内; 和(D)固化量的硅氢化催化剂。

    Silicone pressure sensitive adhesives having enhanced adhesion to low
energy substrates
    3.
    发明授权
    Silicone pressure sensitive adhesives having enhanced adhesion to low energy substrates 失效
    硅胶压敏粘合剂具有增强的对低能量基材的附着力

    公开(公告)号:US5248739A

    公开(公告)日:1993-09-28

    申请号:US960634

    申请日:1992-10-14

    CPC classification number: C09J183/04 Y10T428/31663

    Abstract: There is disclosed a pressure-sensitive adhesive composition based on a silicone resin and a polydiorganosiloxane polymer wherein the resin component has a number average molecular weight of about 950 to 1,600 and consists essentially of triorganosiloxy (M) units and silicate (Q) units wherein the molar ratio M/Q is in the range 1.1/1 to 1.4/1, inclusive. The adhesives of the invention exhibit improved adhesion to low energy substrates such as polyethylene and polytetrafluoroethylene.

    Abstract translation: 公开了一种基于有机硅树脂和聚二有机硅氧烷聚合物的压敏粘合剂组合物,其中树脂组分的数均分子量为约950至1,600,并且基本上由三有机甲硅烷氧基(M)单元和硅酸盐(Q)单元组成,其中 摩尔比M / Q在1.1 / 1〜1.4 / 1的范围内。 本发明的粘合剂显示出对低能量基底例如聚乙烯和聚四氟乙烯的改善的粘合性。

    Polychloropropylsiloxane plasticized polyvinyl chloride compositions
    6.
    发明授权
    Polychloropropylsiloxane plasticized polyvinyl chloride compositions 失效
    聚氯丙基硅氧烷增塑聚氯乙烯组合物

    公开(公告)号:US4231909A

    公开(公告)日:1980-11-04

    申请号:US34820

    申请日:1979-04-30

    CPC classification number: C08L27/06 C08L83/04

    Abstract: A plasticized polyvinyl chloride composition consisting essentially of polyvinyl chloride resin and a polysiloxane fluid containing at least 10 mole percent of 3-chloropropyl functional siloxane units is described. The compositions have increased flexibility and reduced tendency to exude silicone to the surface.

    Abstract translation: 描述了基本上由聚氯乙烯树脂和含有至少10摩尔%的3-氯丙基官能硅氧烷单元的聚硅氧烷流体组成的增塑聚氯乙烯组合物。 组合物具有增加的柔性并降低将硅氧烷渗透到表面的倾向。

    Acid-catalyzed dielectric enhancement fluid and cable restoration method employing same
    7.
    发明授权
    Acid-catalyzed dielectric enhancement fluid and cable restoration method employing same 有权
    酸催化的介电增强流体和电缆恢复方法采用该方法

    公开(公告)号:US07700871B2

    公开(公告)日:2010-04-20

    申请号:US11625251

    申请日:2007-01-19

    CPC classification number: H01B3/46 H01B3/20

    Abstract: A dielectric enhancement fluid composition having at least one organoalkoxysilane and an acid catalyst having a pKA less than about 2.1 and a method for using the composition to enhance the dielectric properties of an electrical cable having a central stranded conductor encased in a polymeric insulation and having an interstitial void volume in the region of the conductor, the method comprising at least partially filling the interstitial void volume of the cable with the composition. The fluid composition may further include an organometallic catalyst and a corrosion inhibitor.

    Abstract translation: 一种具有至少一种有机烷氧基硅烷和pKA小于约2.1的酸催化剂的介电增强流体组合物,以及一种使用该组合物来增强包含在聚合物绝缘体中的具有中心绞合导体的电缆的介电性能的方法, 导体区域中的间隙空隙体积,该方法包括至少部分地填充电缆的间隙空隙体积与组合物。 流体组合物还可以包括有机金属催化剂和腐蚀抑制剂。

    Method for extending long-term electrical power cable performance
    8.
    发明申请
    Method for extending long-term electrical power cable performance 有权
    延长长期电力电缆性能的方法

    公开(公告)号:US20080223498A1

    公开(公告)日:2008-09-18

    申请号:US11468274

    申请日:2006-08-29

    Abstract: An improved method for imparting excellent long-term dielectric performance to an in-service electrical cable section having a stranded conductor surrounded by a conductor shield encased in a polymeric insulation and having an interstitial void volume in the region of the conductor, the cable section having an average operating temperature T. The method comprising injecting a dielectric enhancement fluid composition into the interstitial void volume, the composition comprising at least one component selected from: (1) a water-reactive material selected from an organosilane monomer, the above organosilane monomer wherein at least one of the water-reactive groups has been substituted with a condensable silanol group, an oligomer oligomer of the above organosilane monomer, or a co-oligomer of the above organosilane monomer, the organosilane monomer having a diffusion coefficient at least about 15 times greater than the diffusion coefficient of its corresponding tetramer; (2) a water-reactive material similar to (1) having at least one group attached to silicon comprising 7 to about 20 —CH2— units; (3) a non-water-reactive organic material which has a diffusion coefficient of less than about 10−9 cm2/sec and an equilibrium concentration of at least about 0.005 gm/cm3 in the polymeric insulation, the above mentioned diffusion coefficients and equilibrium concentration being determined at temperature T; or (4) an organic compound having an equilibrium concentration in the polymeric insulation at 55° C. which is less than 2.25 times the equilibrium concentration at 22° C.

    Abstract translation: 一种改进的方法,用于对在线电缆部分赋予优异的长期介电性能,所述电缆部分具有被包封在聚合物绝缘体中并且在导体区域中具有间隙空隙体积的导体屏蔽围绕的绞合导体,所述电缆部分具有 平均操作温度T.该方法包括将介电增强流体组合物注入到间隙空隙体积中,所述组合物包含至少一种选自以下的组分:(1)选自有机硅烷单体,上述有机硅烷单体的水反应性材料,其中 至少一个水反应性基团已被可冷凝的硅烷醇基团取代,上述有机硅烷单体的低聚物低聚物或上述有机硅烷单体的共低聚物,有机硅烷单体的扩散系数至少约为15倍 大于其相应四聚体的扩散系数; (2)类似于(1)的水反应性材料,其具有至少一个与包含7至约20个-CH 2 - 单元的硅连接的基团; (3)非水反应性有机材料,其扩散系数小于约10-9Ω/秒,平衡浓度为至少约0.005 聚合物绝缘体中的gm / cm 3,上述扩散系数和平衡浓度在温度T下确定; 或(4)在55℃下在聚合物绝缘体中具有平衡浓度的有机化合物,其小于22℃下的平衡浓度的2.25倍。

    Anti-treeing additives containing a polyolefin and a siloxane having
aromatic organic groups
    9.
    发明授权
    Anti-treeing additives containing a polyolefin and a siloxane having aromatic organic groups 失效
    含有聚烯烃和具有芳族有机基团的硅氧烷的抗树脂添加剂

    公开(公告)号:US4608306A

    公开(公告)日:1986-08-26

    申请号:US622044

    申请日:1984-06-19

    Inventor: Gary A. Vincent

    Abstract: A composition comprising a polyolefin and an additive selected from cyclic siloxanes containing at least one aromatic group attached to silicon; linear siloxanes containing at least one aromatic group and a silanol content greater than 0.4 weight percent, and linear siloxanes containing at least one aromatic group and having a functional group convertible to a silanol content of greater than 0.4 weight percent by ambient hydrolysis conditions.

    Abstract translation: 一种组合物,其包含聚烯烃和选自含有至少一个与硅连接的芳族基团的环状硅氧烷的添加剂; 含有至少一个芳族基团和大于0.4重量%的硅烷醇含量的直链硅氧烷,以及含有至少一个芳族基团并具有通过环境水解条件可转化为大于0.4重量%的硅烷醇含量的官能团的直链硅氧烷。

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