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    • 1. 发明授权
    • Contact lens article made of silicon- and fluorine-containing resin
    • 由含硅和含氟树脂制成的隐形眼镜制品
    • US4933406A
    • 1990-06-12
    • US403484
    • 1989-09-06
    • Keizo AnanNaoyuki AmayaYoshishige MurataTakayuki OtsuHiroshi KawashimaSatoshi KubotaMasaru Egawa
    • Keizo AnanNaoyuki AmayaYoshishige MurataTakayuki OtsuHiroshi KawashimaSatoshi KubotaMasaru Egawa
    • C08F230/08G02B1/04
    • G02B1/043C08F230/08
    • A contact lens article comprises a resin obtained by copolymerizing starting monomer components containing a silicon-containing compound (A) represented by the formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group, X.sub.1 and X.sub.2 each represent a methyl group or ##STR2## l represents 0 or 1, m represents an integer of 1 to 3 and n and p each represent an integer of 0 to 3; a fluorine-containing compound (B) represented by the formula (II) of: ##STR3## wherein at least one of R.sub.2 and R.sub.3 represents a straight chain or branched chain fluoroalkyl group represented by --C.sub.h H.sub.k F.sub.2h+l-k in which h represents an integer of 2 to 18, k represents an integer of 1 to 2 multiplied by h and when one of R.sub.2 and R.sub.3 is --C.sub.h H.sub.k F.sub.2h+l-k, the other of R.sub.2 and R.sub.3 represents an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms or a cycloalkyl group having 3 to 12 carbon atoms; and a radical polymerizable vinyl monomer.
    • 隐形眼镜制品包括通过共聚包含由式表示的含硅化合物(A)的起始单体成分得到的树脂,其中R 1表示氢原子或甲基,X 1和X 2各自表示甲基 组或 l表示0或1,m表示1至3的整数,n和p各自表示0至3的整数; 由式(II)表示的含氟化合物(B):其中R 2和R 3中的至少一个表示由-ChHkF 2h + lk表示的直链或支链氟烷基,其中h表示 2〜18,k表示1〜2的整数乘以h,当R2和R3之一为-ChHkF2h + lk时,R2和R3中的另一个为碳原子数1〜12的烷基,烯基为2 至12个碳原子或具有3至12个碳原子的环烷基; 和可自由基聚合的乙烯基单体。
    • 8. 发明授权
    • Novel block copolymer of styrene and ethylene
    • 苯乙烯和乙烯的新型嵌段共聚物
    • US5102957A
    • 1992-04-07
    • US511467
    • 1990-04-20
    • Kiyoshi EndoTakayuki Otsu
    • Kiyoshi EndoTakayuki Otsu
    • C08F297/02
    • C08F297/02
    • A novel method is proposed for the preparation of a block copolymer of styrene and ethylene having a very narrow molecular weight distribution and controlled molar ratio of the styrene moiety to ethylene moiety in a high efficiency. The method comprises the steps of: (a) living-polymerizing styrene by using an organic lithium compound as a polymerization initiator; (b) admixing the polymerization mixture containing the living polymer of styrene with a tertiary diamine compound, such as N,N,N',N'-tetramethyl ethylene diamine; and (c) introducing ethylene monomer into the polymerization mixture to effect polymerization of ethylene on to the living polymer molecules of polystyrene.
    • 提出了一种制备苯乙烯和乙烯的嵌段共聚物的新方法,该嵌段共聚物具有非常窄的分子量分布和高度效率的苯乙烯部分与乙烯部分的受控摩尔比。 该方法包括以下步骤:(a)通过使用有机锂化合物作为聚合引发剂使苯乙烯活性聚合; (b)将包含苯乙烯的活性聚合物的聚合混合物与N,N,N',N'-四甲基乙二胺等叔胺化合物混合; 和(c)将乙烯单体引入到聚合混合物中以使乙烯聚合到聚苯乙烯的活性聚合物分子上。