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    • 2. 发明授权
    • Addition reaction-curable liquid silicone rubber compositions and process of preparing same
    • 加成反应可固化液体硅橡胶组合物及其制备方法
    • US07271215B2
    • 2007-09-18
    • US11151255
    • 2005-06-14
    • Masayuki IkenoShigeki ShudoNaoki YamakawaYujiro Taira
    • Masayuki IkenoShigeki ShudoNaoki YamakawaYujiro Taira
    • C08L83/04
    • C08L83/04C08G77/12C08G77/20Y10T428/2995C08L83/00
    • An addition reaction-curable liquid silicone rubber composition includes an organopolysiloxane containing at least one Si-bonded vinyl group only at each end of its backbone and having a viscosity of from 1 to 1,000 Pa·s at 25° C., an organopolysiloxane containing at least two Si-bonded vinyl groups only in side chains on its backbone and having a viscosity of from 0.1 to 100 Pa·s at 25° C., the amount of siloxane units bonded to the vinyl groups being from 2 to 20 mole % of its total siloxane units, finely divided silica having a specific surface area of at least 50 m2/g, hexamethyldisilazane, water, an organohydrogenpolysiloxane containing at least two Si-bonded hydrogen atoms per molecule, and a hydrosilation catalyst. Another addition reaction-curable liquid silicone rubber composition additionally includes a specific non-functional dimethylpolysiloxane. The silicone rubber compositions are cured into products having a hardness of at least 75 as measured by a type-A durometer and an elongation at break of at least 200%.
    • 加成的可反应固化的液体硅橡胶组合物包括仅在其主链的每个末端含有至少一个与Si键合的乙烯基的有机聚硅氧烷,并且其在25℃下的粘度为1至1,000Pa.s, 至少两个Si键合的乙烯基仅在其主链的侧链上,并且在25℃下的粘度为0.1至100Pa.s,与乙烯基键合的硅氧烷单元的量为2-20摩尔% 其总硅氧烷单元,具有至少50m 2 / g比表面积的细分二氧化硅,六甲基二硅氮烷,水,每分子含有至少两个与Si键合的氢原子的有机氢聚硅氧烷和氢硅化物 催化剂。 另一种另外的反应可固化的液体硅橡胶组合物另外包括特定的非官能的二甲基聚硅氧烷。 将硅橡胶组合物固化成硬度至少为75的产品,通过A型硬度计测定,断裂伸长率至少为200%。
    • 3. 发明授权
    • Heat-fixing silicone rubber roller
    • 热固硅胶辊
    • US06328682B1
    • 2001-12-11
    • US09580527
    • 2000-05-30
    • Shigeki Shudo
    • Shigeki Shudo
    • H05B100
    • G03G15/2057C08G77/12C08G77/20C08G77/70C08L83/04C08L83/00
    • A heat-fixing silicone rubber roller comprising a roller shaft, a silicone rubber layer provided on the outer periphery of the roller shaft, and at least one of a fluorine resin layer and a fluorine rubber layer, provided on the outer periphery of the silicone rubber layer. The silicone rubber layer comprises a cured product of a silicone rubber composition containing at least (A) an organopolysiloxane with an average molecular weight of from 30,000 to 100,000, having in one molecule at least two alkenyl groups bonded to silicon atoms; (B) an organohydrogenpolysiloxane having in one molecule at least two hydrogen atoms bonded to silicon atoms; the hydrogen atoms bonded to silicon atoms being in the weight that is from 0.1 to 3.0 equivalent weight per one alkenyl group in the component (A); and (C) a platinum group metal catalyst. The heat-fixing silicone rubber roller has a coating layer of fluorine resin and/or fluorine rubber excellent in interlaminar adhesion and durability.
    • 一种热定影硅橡胶辊,其包括辊轴,设置在辊轴的外周上的硅橡胶层,以及设置在硅橡胶的外周上的氟树脂层和氟橡胶层中的至少一个 层。 硅橡胶层包含至少包含(A)平均分子量为30,000至100,000的有机聚硅氧烷的硅橡胶组合物的固化产物,其在一个分子中具有至少两个与硅原子键合的烯基; (B)在一个分子中具有至少两个与硅原子键合的氢原子的有机氢聚硅氧烷; 与硅原子键合的氢原子的重量比为组分(A)中每一个烯基的0.1至3.0当量; 和(C)铂族金属催化剂。 热固性硅橡胶辊具有层间粘合性和耐久性优异的氟树脂和/或氟橡胶的涂层。
    • 7. 发明授权
    • Liquid form addition curing type silicone rubber composition for fluororesin covered fixing roller and fluororesin covered fixing roller
    • 用于氟树脂覆盖定影辊和氟树脂覆盖定影辊的液态加成固化型硅橡胶组合物
    • US06761673B2
    • 2004-07-13
    • US10115241
    • 2002-04-04
    • Shigeki Shudo
    • Shigeki Shudo
    • F16C1300
    • C08J5/128C08G77/12C08G77/20C08G77/24C08G77/70C08J2327/12C08L83/04Y10T428/3154Y10T428/31663C08L83/00C08L2666/44C08L2666/54
    • A liquid form addition curable silicone rubber composition for forming a fluororesin covered fixing roller is provided. This composition includes (a) 100 parts by weight of an organopolysiloxane with at least two alkenyl groups bonded to non-terminal silicon atoms; (b) an organohydrogenpolysiloxane with at least two silicon-bonded hydrogen atoms, in a sufficient quantity to produce a molar ratio of silicon-bonded hydrogen atoms within said constituent (b) relative to silicon-bonded alkenyl groups within said constituent (a) of 0.4 to 5.0; (c) an effective quantity of a platinum based catalyst; (d) 0.1 to 10 parts by weight of dry process silica; and (e) 0.05 to 5 parts by weight of a cyclic diorganopolysiloxane with at least three silicon-bonded alkenyl groups. This composition is used for formation of the silicone rubber layer of a fixing roller made up of a metal core, a silicone rubber layer on the core, and a fluorine based coating provided on the rubber layer. Good adhesion is obtained between the silicone rubber layer and both of the metal core and the fluorine-based coating, and as a result excellent durability is achieved.
    • 提供一种用于形成氟树脂覆盖定影辊的液体形式的可固化硅橡胶组合物。 该组合物包括(a)100重量份的具有至少两个与非末端硅原子键合的烯基的有机聚硅氧烷; (b)具有至少两个硅键合氢原子的有机氢聚硅氧烷,其量足以产生所述组分(b)内与硅键合的氢原子相对于所述组分(a)中与硅键合的烯基的摩尔比, 0.4〜5.0; (c)有效量的铂类催化剂; (d)0.1〜10重量份干法二氧化硅; 和(e)0.05至5重量份具有至少三个与硅键合的烯基的环状二有机聚硅氧烷。 该组合物用于形成由金属芯,芯上的硅橡胶层和设置在橡胶层上的氟基涂层构成的定影辊的硅橡胶层。 在硅橡胶层与金属芯和氟基涂层两者之间获得良好的附着力,结果实现了优异的耐久性。
    • 8. 发明授权
    • Liquid form addition curing type silicone rubber composition for roll forming
    • 液态加成固化型硅橡胶组合物用于辊压成型
    • US06740405B2
    • 2004-05-25
    • US10096650
    • 2002-03-14
    • Shigeki Shudo
    • Shigeki Shudo
    • B32B2520
    • G03G15/2057C08G77/12C08G77/20C08G77/24C08G77/70C08L83/04Y10T428/2913Y10T428/2933Y10T428/2962Y10T428/3154Y10T428/31663C08L83/00C08L2666/54
    • A liquid form addition curing type silicone rubber composition for roll forming purposes is provided which displays excellent stability and little variation in viscosity over time at room temperature, and yet also offers excellent curability at high temperature. The composition includes: (a) 100 parts by weight of an organopolysiloxane with at least two alkenyl groups bonded to non-terminal silicon atoms within the molecular chain of each molecule, (b) 1 to 300 parts by weight of an inorganic filler, (c) an effective quantity of a platinum based catalyst, and (d) an organohydrogenpolysiloxane represented by the general formula (2), wherein, R3 represents an unsubstituted or a halogen-substituted monovalent hydrocarbon group with no aliphatic unsaturated double bonds, each R4 represents, independently, either an unsubstituted or a halogen-substituted monovalent hydrocarbon group with no aliphatic unsaturated double bonds, or a hydrogen atom, and x represents an integer of 2 or greater, with at least two silicon atom-bonded hydrogen atoms within a single molecule, in sufficient quantity to produce a molar ratio of silicon atom-bonded hydrogen atoms within the constituent (d) relative to the alkenyl groups within the constituent (a) of 0.1 to 5.
    • 提供了用于辊成型目的的液体形式添加固化型硅橡胶组合物,其在室温下显示优异的稳定性和随时间的粘度变化小,而且在高温下也具有优异的固化性。 该组合物包括:(a)100重量份具有至少两个与每个分子的分子链内的非末端硅原子键合的烯基的有机聚硅氧烷,(b)1至300重量份的无机填料,( c)有效量的铂类催化剂,和(d)由通式(2)表示的有机氢聚硅氧烷,其中R 3表示未取代的或没有脂族不饱和双键的卤素取代的一价烃基, 每个R 4独立地表示未被取代的或没有脂肪族不饱和双键的卤素取代的一价烃基或氢原子,x表示2以上的整数,与至少两个硅原子键合 单分子内的氢原子,其量足以产生组分(d)内与硅原子键合的氢原子相对于组分(a)中烯基的摩尔比为0.1至5。
    • 9. 发明授权
    • Liquid addition-curable silicone rubber composition for fixing roller purpose, and fixing roller
    • 用于定影辊用途的液体可加成固化的硅橡胶组合物和定影辊
    • US06472078B1
    • 2002-10-29
    • US09580528
    • 2000-05-30
    • Shigeki ShudoShigeru Ubukata
    • Shigeki ShudoShigeru Ubukata
    • B32B904
    • G03G15/2057C08G77/12C08G77/16C08G77/20C08G77/70C08K3/36C08L83/04C08L2205/02Y10T428/31663C08L83/00
    • A fixing roller purpose liquid addition-curable silicone rubber composition including (A) 100 parts by weight of an organopolysiloxane having in one molecule at least two alkenyl groups bonded to silicon atoms; (B) from 1 part by weight to 30 parts by weight of an organopolysiloxane having hydroxyl groups at both terminals of the molecular chain; (C) an organohydrogenpolysiloxane having in one molecule at least two hydrogen atoms bonded to silicon atoms; and (D) a platinum group metal compound in a catalytically effective quantity. The SiH groups in the component (C) is present in an amount of from 0.4 to 5.0 equivalent weight per one alkenyl group in the component (A). This composition is a substantially non-foamable and addition-curable liquid silicone rubber composition, which is therefore suitable for the fixing roller purpose. The composition has a good moldability to a mandrel and enables production of a fixing roller with a silicone rubber layer having superior toner releasability and mechanical strength.
    • 一种定影辊用液体可加成固化的硅橡胶组合物,其包含(A)100重量份的在一个分子中具有至少两个与硅原子键合的烯基的有机聚硅氧烷; (B)从1重量份到30重量份在分子链的两个末端具有羟基的有机聚硅氧烷; (C)在一个分子中具有至少两个与硅原子键合的氢原子的有机氢聚硅氧烷; 和(D)催化有效量的铂族金属化合物。 组分(C)中的SiH基团以组分(A)中每个烯基的0.4至5.0当量的量存在。 该组合物是基本上不发泡和可加成固化的液体硅橡胶组合物,因此适用于定影辊目的。 组合物对心轴具有良好的成型性,并且能够制造具有优异的调色剂剥离性和机械强度的硅橡胶层的定影辊。