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    • 5. 发明授权
    • Organopolysiloxane
    • 有机聚硅氧烷
    • US5464917A
    • 1995-11-07
    • US282490
    • 1994-08-01
    • Hirofumi KishitaKouichi YamaguchiNobuyuki KobayashiKouichi Ishida
    • Hirofumi KishitaKouichi YamaguchiNobuyuki KobayashiKouichi Ishida
    • C08G77/24C08G77/08
    • C08G77/24
    • A straight-chain organopolysiloxane represented by the general formula: ##STR1## wherein R.sup.1 represents a monovalent hydrocarbon group, R.sup.2 represents a bivalent organic group, Rf represents a perfluoroalkyl ether group or a perfluoroalkyl group, X represents a hydrogen atom or an organosilyl group, and n is an integer of 15 to 4,000 and having a content of cyclic polysiloxanes with a molecular weight of 3,000 or below of 50 ppm or below. This organopolysiloxane is novel in that the content of cyclic siloxanes with a molecular weight of 3,000 or below is only 50 ppm or below and the organopolysiloxane can obviate contact failure due to volatilization of components or surrounding contamination due to bleeding when used as materials in the field of electricity and electronics or as building materials.
    • 由以下通式表示的直链有机聚硅氧烷:其中R1表示一价烃基,R2表示二价有机基团,Rf表示全氟烷基醚基或全氟烷基,X表示氢原子或有机甲硅烷基, n为15〜4000的整数,分子量为3000以下的环状聚硅氧烷的含量为50ppm以下。 该有机聚硅氧烷是新颖的,因为分子量为3,000以下的环状硅氧烷的含量仅为50ppm以下,有机聚硅氧烷可以消除由于挥发成分引起的接触不良或当作为本领域的材料使用时出现渗出的周围污染 电力电子或建筑材料。