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    • 3. 发明授权
    • Room temperature vulcanizable silicon rubber composition
    • 室温硫化硅橡胶组合物
    • US5112885A
    • 1992-05-12
    • US515028
    • 1990-04-26
    • Yoshio InoueMasatoshi AraiHironao Fujiki
    • Yoshio InoueMasatoshi AraiHironao Fujiki
    • C08K5/04C08K5/544C08K9/06C08L83/04C08L83/06
    • C08L83/04C08G77/14C08G77/16C08G77/18C08G77/20C08G77/24C08G77/70
    • A room temperature vulcanizable silicone rubber composition is described. The composition comprises an organopolysiloxane which is blocked with a hydroxyl group or hydrolyzable group at ends of the molecular chain thereof, fumed silica which is surface treated with a monoorganosilane of the general formula, R.sup.1 SiY.sub.3, or a monoorganopolysilazane of the general compositional formula, R.sup.1 Si(NH).sub.3/2, wherein R.sup.1 in each formula represents a monovalent hydrocarbon group and each Y represents a hydrolyzable group and which has a specific area of not less than 50 m.sup.2 /g, and an organosilicon compound of the general formula, R.sup.2.sub.1 SiZ.sub.4-1, wherein R.sup.2 represents an unsubstituted or substituted monovalent hydrocarbon group, Z represents a hydrolyzable group, and 1 is a value of 0 or 1, or its partially hydrolyzed product. The composition may further comprise a promoter for the vulcanization.
    • 描述室温硫化硅橡胶组合物。 该组合物包含在其分子链末端被羟基或可水解基团封闭的有机聚硅氧烷,用通式R 1 SiY 3或通用组成式的单有机硅氮烷表面处理的热解法二氧化硅,R 1 Si( NH)3/2,其中每个式中的R 1表示一价烃基,并且每个Y表示可水解基团,其比表面积不小于50m 2 / g,通式R 21 SiZ 4 -1的有机硅化合物 其中R2表示未取代或取代的一价烃基,Z表示可水解基团,1表示0或1的值,或其部分水解产物。 组合物还可以包含用于硫化的促进剂。
    • 4. 发明授权
    • Silicone rubber compositions and their cured products
    • 硅橡胶组合物及其固化产物
    • US5340872A
    • 1994-08-23
    • US65269
    • 1993-05-21
    • Yoshio InoueMasachika Yoshino
    • Yoshio InoueMasachika Yoshino
    • C08G77/54C08K3/36C08L83/04C08L83/14C08G77/26C08K5/54
    • C08K3/36C08G77/54C08L83/14
    • Silicone rubber compositions which comprise (A) an organopolysiloxane, which possesses at least one triorganosilyl-amine group expressed by the following equation (1) at its molecular end and a degree of polymerization which is at least 2000, and the silicone rubber compositions which further comprise (B) a fine powdered silica whose specific surface area is at least 50 m.sup.2 /g, ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are each a substituted or unsubstituted monovalent hydrocarbon group, each of which can be the same or different. The silicone rubber compositions are a non-fluidity type; therefore, they offer superior workability and formability. Further, silicone rubber obtained by the curing of the said compositions possess superior physical properties, extremely low hardness, flexibility, and good rubber elasticity, thus they are useful as raw materials of various products.
    • 硅氧烷橡胶组合物,其包含(A)有机聚硅氧烷,其有机聚硅氧烷在分子末端具有下列等式(1)表示的至少一种三有机甲硅烷基 - 胺基,聚合度至少为2000,以及进一步的硅橡胶组合物 包含(B)比表面积至少为50m 2 / g的细粉状二氧化硅,其中R1,R2,R3,R4和R5各自为取代或未取代的单价烃基,其中每一个可以 相同或不同 硅橡胶组合物是非流动性类型; 因此,它们具有优异的可加工性和成型性。 此外,通过所述组合物的固化获得的硅橡胶具有优异的物理性能,极低的硬度,柔韧性和良好的橡胶弹性,因此它们可用作各种产品的原料。
    • 6. 发明授权
    • Silicone rubber composition
    • 硅橡胶组合物
    • US5246982A
    • 1993-09-21
    • US860485
    • 1992-03-30
    • Yoshio InoueMasachika Yoshino
    • Yoshio InoueMasachika Yoshino
    • C08K3/36C08K9/06C08L83/04C08L83/07
    • C08K3/36C08L83/04C08G77/12C08G77/20C08G77/24C08G77/26C08G77/70
    • A silicone rubber composition comprises:(A) an organopolysiloxane R.sub.a SiO.sub.(4-a)/2 having an average degree of polymerization of 3000 or greater, wherein R is a substituted or unsubstituted monovalent hydrocarbon group, and 0.0001-0.05 mol % of R is alkenyl; a is 1.95-2.05; and(B) a fine powder of hydrophobic silica, wherein the specific surface area is 50 m.sup.2 /g or greater, the silica surface includes hydrophobic groups f MesiO.sub.3/2 and Me.sub.2 SiO in a weight ratio (MeSiO.sub.3/2)/(Me.sub.2 SiO) or 5/95-95/5, and the total carbon content contained in the MeSiO.sub.3/2 and Me.sub.2 SiO groups account for 0.5 wt % of greater of the silica. A material obtained by hardening this rubber composition has desirable resistance to steam and LLC.
    • 硅橡胶组合物包含:(A)平均聚合度为3000以上的有机聚硅氧烷RaSiO(4-a)/ 2,其中R为取代或未取代的一价烃基,0.0001-0.05mol%的R为 烯基; a是1.95-2.05; 和(B)疏水性二氧化硅的细粉末,其比表面积为50m 2 / g以上,二氧化硅表面包含重量比(MeSiO 3/2)/(Me 2 SiO)的疏水基团F MesiO 3/2和Me 2 SiO,或 5 / 95-95 / 5,并且MeSiO3 / 2和Me2SiO组中含有的总碳含量占二氧化硅中较大者的0.5重量%。 通过硬化该橡胶组合物获得的材料具有对蒸汽和LLC的期望的耐受性。