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    • 2. 发明授权
    • Radiation grafting of organopolysiloxanes
    • 有机聚硅氧烷的辐射接枝
    • US4950546A
    • 1990-08-21
    • US233941
    • 1988-08-18
    • Robert S. DubrowCatherine A. DittmerWilliam D. Uken
    • Robert S. DubrowCatherine A. DittmerWilliam D. Uken
    • C08J7/04
    • C08J7/047C08J2483/00Y10T428/31507Y10T428/31536Y10T428/31663
    • This invention provides for the radiation grafting of certain organopolysiloxanes to polymeric supports. The organopolysiloxane material is partially crosslinked mixture which contains from about 10% to about 90% by weight of uncrosslinked organopolysiloxane oil and has a cone penetration of about 100 to about 350 (10.sup.-1 mm) and an ultimate elongation of at least about 100%. The organopolysiloxane fluid may be placed on the polymeric support and crosslinked to produce an organopolysiloxane material having the above properties and being bonded to the polymeric support. The organopolysiloxane material also can be crosslinked to the above properties by conventional means then placed in contact with the polymeric support and irradiated to crosslink the material to the polymeric support without substantially changing the properties of the organopolysiloxane material.
    • 本发明提供了某些有机聚硅氧烷对聚合物载体的辐射接枝。 有机聚硅氧烷材料是部分交联的混合物,其含有约10重量%至约90重量%的未交联的有机基聚硅氧烷油,并且具有约100至约350(10-1毫米)的锥形渗透和至少约100%的极限伸长率。 有机聚硅氧烷流体可以放置在聚合物载体上并交联以产生具有上述性质并结合到聚合物载体上的有机聚硅氧烷材料。 有机聚硅氧烷材料还可以通过常规方法与上述性能交联,然后与聚合物载体接触并照射以将材料交联聚合物载体,而基本上不改变有机聚硅氧烷材料的性质。
    • 3. 发明授权
    • Organopolysiloxane materials having decreased surface tack
    • 具有降低的表面粘性的有机聚硅氧烷材料
    • US4595635A
    • 1986-06-17
    • US730692
    • 1985-05-02
    • Robert S. DubrowCatherine A. DittmerWilliam D. Uken
    • Robert S. DubrowCatherine A. DittmerWilliam D. Uken
    • C08J3/24B29C35/08B29C71/04C08J3/28C08J7/00C08J7/12B05D3/06
    • B29C71/04B29C2035/0827B29K2083/00Y10T428/31663
    • This invention provides organopolysiloxane materials having cone penetration between about 100 and about 350 (10.sup.-1 mm) and ultimate elongation of at least 100% and having reduced surface tack. This invention provides three methods of obtaining said materials with reduced surface tack. The first method comprises applying to the surface of such material an organic peroxide or a photoinitiator and irradiating the surface with ultraviolet light to further crosslink the surface to reduce or eliminate the tack of the surface. The second method comprises mixing a photoinitiator, such as benzophenone, in an organopolysiloxane fluid, thermally crosslinking the organopolysiloxane fluid to produce the material with the above cone penetration and ultimate elongation then irradiating the surface of the material with ultraviolet light to reduce or eliminate the tack of the surface. The third method comprises mixing a photoinitiator, such as benzophenone, in an organopolysiloxane fluid, crosslinking the fluid by irradiating a layer of the fluid with ultraviolet light to produce the above cone penetration and ultimate elongation properties then further irradiating the crosslinked material to reduce or eliminate the surface tack; this method can be carried out by simultaneous irradiation with ultraviolet light from two sides of a layer of the organopolysiloxane wherein one surface is irradiated at a higher intensity than the other surface. The materials produced by this invention are useful as tapes and sealants.
    • 本发明提供具有在约100至约350(10-1mm)之间的锥形穿透和至少100%的极限伸长率并具有降低的表面粘性的有机聚硅氧烷材料。 本发明提供了获得具有降低的表面粘性的所述材料的三种方法。 第一种方法包括将这种材料的表面施加到有机过氧化物或光引发剂上并用紫外光照射表面以进一步交联表面以减少或消除表面的粘性。 第二种方法包括将光引发剂如二苯甲酮混合在有机聚硅氧烷流体中,将有机聚硅氧烷流体热交联以产生具有上述锥体渗透和极限伸长的材料,然后用紫外光照射材料的表面以减少或消除粘性 的表面。 第三种方法包括将光引发剂如二苯甲酮混合在有机聚硅氧烷流体中,通过用紫外光照射一层流体来交联流体,以产生上述锥体渗透和极限伸长性能,然后进一步照射交联材料以减少或消除 表面粘性; 该方法可以通过同时照射来自有机聚硅氧烷层的两侧的紫外光进行,其中一个表面以比另一个表面更高的强度照射。 本发明生产的材料可用作带和密封剂。
    • 5. 发明授权
    • Radiation grafting of organopolysiloxanes
    • 有机聚硅氧烷的辐射接枝
    • US5037667A
    • 1991-08-06
    • US569111
    • 1990-08-17
    • Robert S. DubrowCatherine A. Dittmer
    • Robert S. DubrowCatherine A. Dittmer
    • C08J7/04
    • C08J7/047C08J2483/00
    • This invention provides for the radiation grafting of certain organopolysiloxanes to polymeric supports. The organopolysiloxane material is partially crosslinked mixture which contains from about 10% to about 90% by weight of uncrosslinked organopolysiloxane oil and has a cone penetration of about 100 to about 350 (10.sup.-1 mm) and an ultimate elongation of at least about 100%. The organopolysiloxane fluid may be placed on the polymeric support and crosslinked to produce an organopolysiloxane material having the above properties and being bonded to the polymeric support. The organopolysiloxane material also can be crosslinked to the above properties by conventional means then placed in contact with the polymeric support and irradiated to crosslink the material to the polymeric support without substantially changing the properties of the organopolysiloxane material.
    • 本发明提供了某些有机聚硅氧烷对聚合物载体的辐射接枝。 有机聚硅氧烷材料是部分交联的混合物,其含有约10重量%至约90重量%的未交联的有机基聚硅氧烷油,并且具有约100至约350(10-1毫米)的锥形渗透和至少约100%的极限伸长率。 有机聚硅氧烷流体可以放置在聚合物载体上并交联以产生具有上述性质并结合到聚合物载体上的有机聚硅氧烷材料。 有机聚硅氧烷材料还可以通过常规方法与上述性能交联,然后与聚合物载体接触并照射以将材料交联聚合物载体,而基本上不改变有机聚硅氧烷材料的性质。