Moisture-curable hot melt silicone pressure-sensitivie adhesives
    1.
    发明公开
    Moisture-curable hot melt silicone pressure-sensitivie adhesives 失效
    湿气基于聚硅氧烷的可固化,热熔压敏粘合剂。

    公开(公告)号:EP0628617A3

    公开(公告)日:1995-08-30

    申请号:EP94304151.7

    申请日:1994-06-09

    IPC分类号: C09J183/04

    摘要: A moisture-curable silicone hot melt pressure-sensitive adhesive composition is disclosed, said composition comprising (i) a solid hydroxyl-functional organopolysiloxane resin comprising R₃SiO 1/2 siloxane units and SiO 4/2 siloxane units in a molar ratio of 0.5/1 to 1.2/1, respectively, wherein R is selected from hydrocarbon and halogenated hydrocarbon radicals and said hydroxyl content is 1.2 to 6 percent by weight; (ii) an alkoxy-functional diorganopolysiloxane polymer having a viscosity at 25°C. of 20 to 100,000 mPa·s (centipoise), the weight ratio of said resin to said polymer being in the range 40:60 to 80:20; (iii) a silane of the formula R' 4-y SiX y , in which R' is selected from hydrocarbon radicals and substituted hydrocarbon radicals having 1-6 carbon atoms, X is a hydrolyzable group and y is 2 to 4, the amount of said silane being sufficient to provide stability to said composition; and (iv) sufficient catalyst to accelerate the cure of said composition, said composition being an essentially solvent-free, non-slump solid at room temperature which cures to an essentially non-tacky elastomer upon exposure to moisture.

    Method for enhancing the dielectrical strength of a cable using a fluid mixture
    2.
    发明公开
    Method for enhancing the dielectrical strength of a cable using a fluid mixture 失效
    一种用于使用液体混合物中增加电缆的介电强度的方法。

    公开(公告)号:EP0621607A1

    公开(公告)日:1994-10-26

    申请号:EP94302572.6

    申请日:1994-04-12

    IPC分类号: H01B7/28 H01B3/44 H01B3/46

    摘要: A method for enhancing the dielectric properties of new or in-service electrical cable is disclosed, the method comprising supplying the interstitial void space of the cable's conductor with a fluid mixture comprising

    (A) an antitreeing agent; and
    (B) a water-reactive compound,

    wherein (B) has a diffusion coefficient of at least 1 x 10⁻⁷ cm²/second at 50°C. in the insulation of the cable and the mixture has an initial viscosity of ≦100 cP (mPa·s) at 25°C. The instant method provides a more symmetrical distribution of dielectric enhancing fluid in the insulation than prior art approaches and results in a significant reduction in cable treatment time.

    摘要翻译: 一种用于增强的介电性质的方法的新的或是服务电电缆盘游离缺失,该方法包括有流体混合物,其包含(A)至antitreeing剂供给电缆的导体的间隙空位空间; 和(B)的水反应性化合物,worin(B)具有的扩散系数为至少1×10 < - > <7>厘米<2> /秒,在50℃下在电缆和所述混合物的绝缘 具有在25℃本方法提供提高介电性流体在绝缘性比现有技术的方法和结果在电缆治疗时间减少显著更对称的分布初始

    Anti-treeing additives
    3.
    发明公开
    Anti-treeing additives 失效
    防树脂添加剂。

    公开(公告)号:EP0125020A1

    公开(公告)日:1984-11-14

    申请号:EP84302340.9

    申请日:1984-04-05

    IPC分类号: C08L23/06 H01B3/44 C08K5/54

    摘要: A composition comprising a major portion of a polyolefin and a minor portion of a siloxane having at least one silicon bonded unsaturated, substituted or unsubstituted, hydrocarbon radical substituent is disclosed. A method of stabilizing polymers against water and electrical treeing which comprises adding a siloxane as defined above is further disclosed.

    摘要翻译: 公开了包含大部分聚烯烃和少部分具有至少一个硅键合的不饱和,取代或未取代的烃基取代基的硅氧烷的组合物。 进一步公开了一种稳定聚合物抗水和电树木的方法,该方法包括加入如上定义的硅氧烷。

    Anti-treeing additives
    4.
    发明公开
    Anti-treeing additives 失效
    抗菌添加剂

    公开(公告)号:EP0114495A3

    公开(公告)日:1984-10-17

    申请号:EP83307754

    申请日:1983-12-20

    IPC分类号: H01B03/30 C08K05/54

    CPC分类号: H01B3/441 C08K5/5415

    摘要: A composition is disclosed comprising a polymeric component and an additive selected from the group consisting of
    (a) R a Si (OX) 4-a , (b) a partial hydrolyzate of R a Si(OX) 4-a , (c) a partial cohydrolyzate of R a Si (OX) 4-a and R b 'Si (OY) 4-b , and (d) a partial hydrolyzate condensation product of a siloxane and R a Si (OX) 4-a
    wherein R, X R', and Y are substituted or unsubstituted
    hydrocarbon radicals and at last one substituent per additive is an unsaturated hydrocarbon radical; and a and b have values of 0 to 3. A method of stabilizing polymers against water and electrical treeing, which comprises adding the additive as defined above, is further disclosed.

    Polymeric compositions resistant to electrical and water treeing
    5.
    发明公开
    Polymeric compositions resistant to electrical and water treeing 失效
    Polymere Zusammensetzungen抗性gegen Wasser-“树”和电子邮件“树”。

    公开(公告)号:EP0109797A2

    公开(公告)日:1984-05-30

    申请号:EP83306788.7

    申请日:1983-11-08

    IPC分类号: H01B3/44 C08L101/00

    CPC分类号: C08K5/5425 H01B3/30

    摘要: A composition comprising a polymeric component and a siloxane, having at least one silicon bonded group having the general formula -OX wherein X is an unsaturated hydrocarbon radical, is disclosed. A method of stabilizing polymers against water and electrical treeing, which comprises adding a siloxane having at least one silicon bonded group having the general formula -OX wherein X is an unsaturated hydrocarbon, is further disclosed.

    摘要翻译: 公开了包含聚合物组分和硅氧烷的组合物,其具有至少一个具有通式-OX的硅键合基团,其中X是不饱和烃基。 一种稳定聚合物抗水和电树的方法,其进一步公开了加入具有至少一个具有通式-OX的硅键合基团的硅氧烷,其中X是不饱和烃。

    Moisture-curable hot melt silicone pressure-sensitivie adhesives
    7.
    发明公开
    Moisture-curable hot melt silicone pressure-sensitivie adhesives 失效
    Durch Feuchtigkeit vernetzbare,druckempfindliche Schmelzklebestoffe auf Basis von Polysiloxane。

    公开(公告)号:EP0628617A2

    公开(公告)日:1994-12-14

    申请号:EP94304151.7

    申请日:1994-06-09

    IPC分类号: C09J183/04

    摘要: A moisture-curable silicone hot melt pressure-sensitive adhesive composition is disclosed, said composition comprising (i) a solid hydroxyl-functional organopolysiloxane resin comprising R₃SiO 1/2 siloxane units and SiO 4/2 siloxane units in a molar ratio of 0.5/1 to 1.2/1, respectively, wherein R is selected from hydrocarbon and halogenated hydrocarbon radicals and said hydroxyl content is 1.2 to 6 percent by weight; (ii) an alkoxy-functional diorganopolysiloxane polymer having a viscosity at 25°C. of 20 to 100,000 mPa·s (centipoise), the weight ratio of said resin to said polymer being in the range 40:60 to 80:20; (iii) a silane of the formula R' 4-y SiX y , in which R' is selected from hydrocarbon radicals and substituted hydrocarbon radicals having 1-6 carbon atoms, X is a hydrolyzable group and y is 2 to 4, the amount of said silane being sufficient to provide stability to said composition; and (iv) sufficient catalyst to accelerate the cure of said composition, said composition being an essentially solvent-free, non-slump solid at room temperature which cures to an essentially non-tacky elastomer upon exposure to moisture.

    摘要翻译: 公开了一种可湿气固化的硅氧烷热熔压敏粘合剂组合物,所述组合物包含(i)包含摩尔比为0.5 / 1至1.2的R3SiO1 / 2硅氧烷单元和SiO4 / 2硅氧烷单元的固体羟基官能的有机聚硅氧烷树脂 / 1,其中R选自烃和卤代烃基,所述羟基含量为1.2至6重量%; (ii)在25℃下的粘度为20至100,000mPa.s(厘泊)的烷氧基​​官能的二有机聚硅氧烷聚合物,所述树脂与所述聚合物的重量比在40:60至80:20的范围内; (iii)式R'4-ySiXy的硅烷,其中R'选自烃基和具有1-6个碳原子的取代的烃基,X是可水解基团,y是2至4,所述 硅烷足以提供对所述组合物的稳定性; 和(iv)足够的催化剂以加速所述组合物的固化,所述组合物在室温下基本上是无溶剂的非坍落度固体,其在暴露于水分时可固化成基本上非粘性的弹性体。

    Siloxane water block for electrical cables
    10.
    发明公开
    Siloxane water block for electrical cables 失效
    Wassersperre auf Siloxanbasisfürelektrische Kabel。

    公开(公告)号:EP0288869A1

    公开(公告)日:1988-11-02

    申请号:EP88106184.0

    申请日:1988-04-19

    IPC分类号: H01B13/32 H01B7/28

    摘要: There is provided a method of extending the serviceable life of a stranded conductor electrical distribution cable wherein the interstices of the conductor are filled with a curable silicone water block composition which is subsequently cured to a non-flowing state. The composition has a low viscosity and comprises (A) an Si-H endblocked polydiorganosiloxane fluid, (B) a polydiorganosiloxane fluid endblocked with an unsaturated organic radical, (C) a siloxane crosslinker, (D) a hydrosilation catalyst and (E) a polymerization inhibitor. Proper selection of catalyst and inhibitor concentrations imparts a controllable viscosity-time profile to the composition and allows cables of various sizes and lengths to be filled before the water block composition cures.

    摘要翻译: 提供了一种延长绞合导体配电电缆的使用寿命的方法,其中导体的间隙填充有可固化的硅氧烷水阻挡组合物,其随后固化至非流动状态。 该组合物具有低粘度,并且包含(A)Si-H封端的聚二有机硅氧烷流体,(B)以不饱和有机基团封端的聚二有机硅氧烷流体,(C)硅氧烷交联剂,(D)硅氢化催化剂和(E) 聚合抑制剂。 催化剂和抑制剂浓度的适当选择赋予组合物可控的粘度 - 时间分布,并允许在水嵌段组合物固化之前填充各种尺寸和长度的电缆。