Silicone rubber compositions
    62.
    发明授权
    Silicone rubber compositions 失效
    硅橡胶组合物

    公开(公告)号:US4022747A

    公开(公告)日:1977-05-10

    申请号:US626350

    申请日:1975-10-28

    IPC分类号: C08L83/00 C08L83/04

    摘要: Silicone rubber compositions comprising (a) diorganopolysiloxane with a viscosity at least 1,000,000 centistokes at 25.degree. C, of which from 8 to 80 mole % of the organic groups are monovalent hydrocarbon group having from 2 to 4 carbon atoms, (b) an organopolysiloxane with a viscosity at most 200 centistokes, (c) a silica filler, and (d) an organic peroxide. Their vulcanized form, i.e., silicone rubber elastomers exhibit a high degree of elasticity in an extremely low temperature range, and have superior properties with respect to heat-resistance, oil-resistance, electrical characteristics and compression set.

    摘要翻译: 包含(a)在25℃下具有至少1,000,000厘沲粘度的二有机聚硅氧烷的硅橡胶组合物,其中8至80摩尔%的有机基团是具有2至4个碳原子的单价烃基,(b)有机聚硅氧烷, 粘度至多200厘沲,(c)二氧化硅填料,(d)有机过氧化物。 它们的硫化形式,即硅橡胶弹性体在极低温度范围内表现出高度的弹性,并且在耐热性,耐油性,电特性和压缩永久变形方面具有优异的性能。

    Semiconductor device and optical pickup device
    63.
    发明授权
    Semiconductor device and optical pickup device 失效
    半导体器件和光学拾取器件

    公开(公告)号:US06810057B1

    公开(公告)日:2004-10-26

    申请号:US09718568

    申请日:2000-11-22

    IPC分类号: H01S500

    摘要: A semiconductor device having a plurality of semiconductor laser elements is provided, which is capable of reducing an interval of emission points between the semiconductor laser elements and also capable of preventing heat generated by a semiconductor laser element from affecting other semiconductor elements. A concave portion is formed on a silicon substrate, and a protrusion of a quadrangular truncated pyramidal shape consisting of slanted faces of a (1 1 1) plane, a (1 {overscore (1)} 1) plane, a ({overscore (1)} {overscore (1)} 1) plane and a ({overscore (1)} 1 1) plane is formed near the center of the concave portion by using the silicon process. Among these slanted faces, a (1 1 1) outer face and a (1 1 1) inner face are determined to be reflecting mirror surfaces. The semiconductor laser elements respectively are fixed on small protrusions formed on the concave portion, and a photodetector for receiving light beams L1′ and L2′ returning from an optical disc is disposed on a top face of the protrusion.

    摘要翻译: 提供具有多个半导体激光元件的半导体器件,其能够减小半导体激光元件之间的发射点的间隔,并且还能够防止由半导体激光元件产生的热量影响其他半导体元件。 在硅衬底上形成凹部,并且由(111)面,((过(1)面),((超(1)面) 通过使用硅工艺在凹部的中心附近形成超芯(11)面和(超(11)面),在这些倾斜面中,(1111)外表面和(11 1)内表面被确定为反射镜表面,半导体激光元件分别固定在形成在凹部上的小突起上,并且用于接收从光盘返回的光束L1'和L2'的光电检测器设置在顶部 突起面。

    Oral compositions for ruminants
    65.
    发明授权
    Oral compositions for ruminants 失效
    口服组合物

    公开(公告)号:US5080917A

    公开(公告)日:1992-01-14

    申请号:US333170

    申请日:1989-04-03

    IPC分类号: A23K1/00 A61K9/50 A61K9/52

    摘要: A coating agent for delaying the release of a physiologically active substance to be administered per os to ruminants, said coating comprising a veterinary acceptable water-soluble, synthetic high molecular compound and ethylcellulose, said coating agent being stable in the first stomach or rumen of ruminants and capable of being effectively disintegrated for subsequent absorption in the 4th stomach of ruminants, characterized in that said coating agent further comprises at least one substance which is miscible with both of said high molecular weight compound and ethylcellulose and is insoluble in water.Said coating agent forms a coat which protects the active substance from degradation in the first stomach of a ruminant at a pH of about 5.5 and rapidly breaks down in the 4th stomach at a pH of about 3, thereby releasing the active ingredient for absorption by the animal.The coating agent and the actives coated therewith and their preparation are described.

    Foamable silicone rubber composition
    68.
    发明授权
    Foamable silicone rubber composition 失效
    可发泡硅橡胶组合物

    公开(公告)号:US4870115A

    公开(公告)日:1989-09-26

    申请号:US322922

    申请日:1989-03-14

    摘要: A foamable silicone rubber composition, comprising:(A) a polyorganosilphenylenesiloxane copolymer represented by Formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are each a particular monohydrocarbon group, and a and h are each an integer of 1 or more and have the relation of 1.gtoreq.a/b.gtoreq.0.05 and a+b.gtoreq.100,(B) an organosilicon compound containing a particular organosiloxy unit having a hydroxyl group,(C) a polyorganohydrogenosiloxane having at least two particular units having an Si--H bond, and(D) a platinum family metal catalyst.This composition can provide a foam with good mechanical strength.

    摘要翻译: 一种可发泡硅橡胶组合物,其包含:(A)由式(I)表示的聚有机硅烷基苯基硅氧烷共聚物:其中R 1和R 2各自是特定的单烃基,a和h各自为1的整数 并且具有1> / = a / b> / = 0.05和a + b> / = 100的关系,(B)含有具有羟基的特定有机甲硅烷氧基单元的有机硅化合物,(C)聚有机氢硅氧烷 至少两个具有Si-H键的特定单元,和(D)铂族金属催化剂。 该组合物可以提供具有良好机械强度的泡沫。

    Silicone rubber composition
    69.
    发明授权
    Silicone rubber composition 失效
    硅橡胶组合物

    公开(公告)号:US4826905A

    公开(公告)日:1989-05-02

    申请号:US131604

    申请日:1987-12-11

    摘要: A silicone rubber composition composed of a high-molecular diorganopolysiloxane, a reinforcing silica filler and an organic peroxide as a curing agent is further compounded with a fluorine-containing low-polymeric compound such as poly(chlorotrifluoroethylene) and perfluorinated polyether compound of the formula F--[--CF(CF.sub.3)--CF.sub.2 --O--].sub.v --O--CF.sub.2 --CF.sub.3, in which v is 2 to 100, as well as fluoroalkyl-substituted organopolysiloxanes. The silicone rubber composition can give a cured silicone rubber product having greatly improved resistance against dynamic fatigue as in repeated cycles of stretching and relaxation.

    摘要翻译: 由高分子二有机聚硅氧烷,增强二氧化硅填料和作为固化剂的有机过氧化物组成的硅橡胶组合物进一步与含氟低聚物,如聚(氯三氟乙烯)和式F的全氟化聚醚化合物 - [ - CF(CF 3)-CF 2 -O-] v O-CF 2 -CF 3,其中v为2至100,以及氟烷基取代的有机聚硅氧烷。 硅橡胶组合物可以在重复的拉伸和松弛循环中得到具有大大提高的抗动态疲劳性能的固化硅橡胶产品。

    Silicone rubber composition
    70.
    发明授权
    Silicone rubber composition 失效
    硅橡胶组合物

    公开(公告)号:US4771099A

    公开(公告)日:1988-09-13

    申请号:US121226

    申请日:1987-11-16

    CPC分类号: C08K5/14 C08K5/5419

    摘要: The silicone rubber composition of the invention comprises, as the peroxide curing agent, a neopentane diol derivative represented by the general formulaR.sup.1 --O--O--CO--O--CH.sub.2 --C(CH.sub.3).sub.2 --CH.sub.2 --O--CO--O--O--R.sup.2,in which R.sup.1 and R.sup.2 are each, independently from the other, a monovalent hydrocarbon group having 3 to 10 carbon atoms or a silyl group of the general formula --SiR.sup.3.sub.3, R.sup.3 being a methyl, ethyl or phenyl group, such as trimethyl silyl, in admixture with a diorganopolysiloxane and a reinforcing silica filler. By virtue of this unique formulation, the silicone rubber composition is suitable for hot-air vulcanization without compression as in the vulcanization process by extrusion molding followed by heating in a hot-air oven.

    摘要翻译: 本发明的硅橡胶组合物包含作为过氧化物固化剂的由通式R 1 -O O-CO-O-CH 2 -C(CH 3)2 -CH 2 -O-CO-OO-R 2表示的新戊二醇衍生物, 其中R1和R2各自独立地为具有3-10个碳原子的一价烃基或通式-SiR33的甲硅烷基,R3是甲基,乙基或苯基,例如三甲基甲硅烷基,在三 与二有机聚硅氧烷和增强二氧化硅填料混合。 凭借这种独特的配方,硅橡胶组合物适用于无压缩的热空气硫化,如硫化过程中的挤出成型,然后在热空气烘箱中加热。