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    • 8. 发明授权
    • Contact lens material
    • 隐形眼镜材料
    • US5605942A
    • 1997-02-25
    • US583746
    • 1996-01-17
    • Haruyuki HirataniKazuhiko NakadaShoji IchinoheToshio YamazakiHideto Kato
    • Haruyuki HirataniKazuhiko NakadaShoji IchinoheToshio YamazakiHideto Kato
    • C08G73/10G02B1/04A61F2/16
    • C08G73/106C08G73/1039G02B1/043
    • A contact lens material comprising a condensation polymer having a recurring unit represented by the formula (I): ##STR1## wherein R.sup.1 is --C(CF.sub.3).sub.2 -- or ##STR2## R.sup.2 is a group represented by the formula: ##STR3## in which l is an integer of 1 to 3, m is an integer of 1 to 15 and n is an integer of 1 to 3, ##STR4## in which u is an integer of 1 to 3 and v is an integer of 1 to 3, a group represented by the formula (II): ##STR5## wherein R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are the same or different and each is hydrogen atom or an alkyl group having 1 to 5 carbon atoms, or a group represented by the formula (III): ##STR6## wherein R.sup.7 is --C(CF.sub.3).sub.2 --, ##STR7## or a direct bond, and R.sup.8 and R.sup.9 are the same or different and each is an alkyl group having 1 to 3 carbon atoms, a fluoroalkyl group having 1 to 3 carbon atoms, hydrogen atom, hydroxyl group or carboxyl group. The contact lens material is excellent in transparency, having high oxygen permeability and moreover, excellent in heat resistance, ultraviolet-ray absorbing property and forming and processing property.
    • 包含具有由式(I)表示的重复单元的缩聚物的隐形眼镜材料:其中R 1是-C(CF 3)2 - 或R 2是由下式表示的基团: IMAGE>其中l为1〜3的整数,m为1〜15的整数,n为1〜3的整数,< IMAGE>中,u为1〜3的整数,v为 1〜3,式(II)表示的基团:其中R 3,R 4,R 5和R 6相同或不同,各自为氢原子或碳原子数1〜5的烷基, 由式(III)表示的基团:其中R 7是-C(CF 3)2 - , - 或直接键,其中R 8和R 9相同或不同,并且各自为烷基 具有1至3个碳原子,具有1至3个碳原子的氟代烷基,氢原子,羟基或羧基。 隐形眼镜材料的透明度优异,透氧性高,耐热性,紫外线吸收性,成型加工性优异。
    • 10. 发明授权
    • Modification of resins with isocyanatosiloxanes
    • 用异氰酸酯硅氧烷改性树脂
    • US5703159A
    • 1997-12-30
    • US570387
    • 1995-12-11
    • Shoji IchinoheToshio YamazakiAkira Yamamoto
    • Shoji IchinoheToshio YamazakiAkira Yamamoto
    • C08G18/42C08G18/62C08G18/71C08G18/77C08G77/388C08G77/50C08G77/26
    • C08G18/6229C08G18/4238C08G18/6212C08G18/718C08G18/778C08G77/388C08G77/50
    • Resins having a group reactive with an isocyanate group on a side chain are modified with isocyanatosiloxanes. In one form, the isocyanatosiloxane is a single end isocyanatosiloxane obtained by effecting addition reaction between a single end hydrogenosiloxane and an isocyanate group-containing organic silicon compound having one isocyanate group and at least one aliphatic unsaturated hydrocarbon group. A single end isocyanatosiloxane obtained by introducing an isocyanate group into a single end primary aminosiloxane is also useful. In another form, the isocyanatosiloxane is a polyfunctional isocyanatosiloxane which is obtained by effecting addition reaction between a hydrogenosiloxane having at least two SiH groups and an isocyanate group-containing organic silicon compound having one isocyanate group and one aliphatic unsaturated hydrocarbon group.
    • 具有与侧链上的异氰酸酯基反应的基团的树脂用异氰酸酯硅氧烷改性。 在一种形式中,异氰酸酯基硅氧烷是通过在单端氢硅氧烷和具有一个异氰酸酯基和至少一个脂肪族不饱和烃基的含异氰酸酯基的有机硅化合物之间进行加成反应获得的单端异氰酸酯硅氧烷。 通过将异氰酸酯基引入单末端伯氨基硅氧烷而获得的单末端异氰酸酯硅氧烷也是有用的。 在另一种形式中,异氰酸基硅氧烷是通过在具有至少两个SiH基的氢硅氧烷与具有一个异氰酸酯基和一个脂肪族不饱和烃基的含异氰酸酯基的有机硅化合物之间进行加成反应获得的多官能异氰酸酯基硅氧烷。