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    • 53. 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。