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    • 9. 发明授权
    • Electric contact material and electric contact using said material
    • 使用所述材料的电接触材料和电接触
    • US5338618A
    • 1994-08-16
    • US951587
    • 1992-09-25
    • Satoshi SuzukiNobuyuki ShibataRyotomo ShirakawaAkira Matsuda
    • Satoshi SuzukiNobuyuki ShibataRyotomo ShirakawaAkira Matsuda
    • C22C1/10C22C5/06H01H1/023H01H1/0237H01H11/04H01R39/20H01H1/02
    • H01H1/0237Y10T428/12486Y10T428/12882Y10T428/12896Y10T428/12903
    • An electric contact material containing Li oxide of 0.01 to 2.0% by weight when represented in terms of the amount of Li, oxide of at least one rare earth element of 0.05 to 0.18% by weight when represented in terms of the amount of the rare earth element, and Ag or Ag alloy as the remaining portion; an electric contact material containing Li oxide of 0.01 to 2.0% by weight when represented in terms of the amount of Li, at least one rare earth element of 0.05 to 0.18% by weight when represented in terms of the amount of the rare earth element, at least one element selected from a group consisting of In, Sn, Zn, Mn, Pd, Sb, Cu, Mg, Pb, Cd, Cr and Bi by an amount of 0.1 to 1.0% by weight (however, in the case of Zn and Mn, the amount is set less than 0.5% by weight), and/or at least one element selected from a group consisting of Fe, Ni and Co by an amount of 0.03 to 0.6% by weight, and Ag as the remaining portion; and an electric contact formed by using the above material. It is excellent in the arc resistance, wear resistance an lubricity in a small current region and is suitable as the material for a slide contact and rotary slide contact.
    • 当以稀土量表示的至少一种稀土元素的Li的氧化物为0.05〜0.18重量%表示时,含有0.01〜2.0重量%的Li氧化物的电接触材料 元素,Ag或Ag合金作为剩余部分; 当以Li的量表示,含有0.01〜2.0重量%的Li氧化物的电接触材料,当以稀土元素的量表示时,至少一种稀土元素为0.05〜0.18重量% 选自由In,Sn,Zn,Mn,Pd,Sb,Cu,Mg,Pb,Cd,Cr和Bi组成的组中的至少一种元素,其量为0.1至1.0重量%(然而,在 Zn和Mn,其含量设定为小于0.5重量%),和/或至少一种选自Fe,Ni和Co的元素的量为0.03至0.6重量%,Ag为剩余量 一部分; 以及通过使用上述材料形成的电接触。 电弧电阻优良,耐磨性小,在小电流区域具有润滑性,适用于滑动接触和旋转滑动接触的材料。
    • 10. 发明授权
    • Heat-resistant rubber compositions
    • 耐热橡胶组合物
    • US5278204A
    • 1994-01-11
    • US975955
    • 1992-11-13
    • Tetsuo TojoKatsuo OkamotoAkira MatsudaEckhart Louis
    • Tetsuo TojoKatsuo OkamotoAkira MatsudaEckhart Louis
    • C08K3/36C08K9/06C08L23/16
    • C08L23/16C08K3/36C08K9/06C08L2312/00
    • Disclosed is a heat-resistant rubber composition comprising (A) 100 parts by weight of an ethylene/.alpha.-olefin copolymer or a modified ethylene/.alpha.-olefin copolymer formed by graft-copolymerization with at least one compound selected from the group consisting of unsaturated carboxylic acids and anhydrides and esters thereof, and (B) (i) 10 to 100 parts by weight of a silica type filler which has been treated with a silane compound represented by the following formula: ##STR1## wherein R.sup.1 stands for an alkenyl group, a chloroalkenyl group or a chloroalkyl group, and R.sup.2 stands for a lower alkyl group, or (ii) a combination of 10 to 100 parts by weight of said silane-treated silica type filler or an untreated silica type filler and 0.5 to 30 parts by weight of a polyorganosiloxane having an average composition represented by the following formula:(R.sup.3).sub.a (R.sup.4).sub.b SiO.sub.(4-a-b)/2 (II)wherein R.sup.3 stands for a monovalent saturated or unsaturated hydrocarbon group, R.sup.4 stands for a chloroalkyl group or an alkenyl group, a is a number of from 1 to 2.5 and b is a number of from 0.01 to 1.2, with the proviso that the sum of a and b is in the range of from 1.8 to 3.
    • 公开了一种耐热橡胶组合物,其包含(A)100重量份的乙烯/α-烯烃共聚物或改性乙烯/α-烯烃共聚物,其通过与至少一种选自不饱和化合物的化合物接枝共聚而形成 羧酸及其酸酐及其酯,(B)(i)10〜100重量份用下式表示的硅烷化合物处理的二氧化硅型填料:其中R1代表 烯基,氯链烯基或氯代烷基,R2代表低级烷基,或(ii)10至100重量份所述硅烷处理二氧化硅类填料或未处理的二氧化硅类填料和0.5 30重量份的平均组成由下式表示的聚有机硅氧烷:(R3)a(R4)bSiO(4-ab)/ 2(Ⅱ)其中R3表示一价饱和或不饱和烃基,R4表示 对于氯代烷基 基团或烯基,a为1〜2.5的数,b为0.01〜1.2的数,条件是a和b之和在1.8〜3的范围内。