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    • 39. 发明授权
    • Optical material
    • 光学材料
    • US5536798A
    • 1996-07-16
    • US357343
    • 1994-12-15
    • Toru DoiTomohiro Ishikawa
    • Toru DoiTomohiro Ishikawa
    • C08F222/40G02B1/04C08F210/00C08F226/06G02B3/00
    • C08F222/40G02B1/04
    • An optical material, comprising a resin composed of a polymer constituted of a first structural unit composed of at least one of the compounds represented by the formula (I), and of a second structural unit composed of at least one of the compounds represented by the formula (II), and having a weight-average molecular weight of from 1.times.10.sup.3 to 5.times.10.sup.6 : ##STR1## where R.sub.1 denotes an alkyl group having 1 to 18 carbons or a cycloalkyl group having 3 to 8 carbons; ##STR2## where R.sub.2 denotes hydrogen or an alkyl group having 1 to 8 carbons, and R.sub.3 and R.sub.4 denote respectively an alkyl group having 1 to 8 carbons. The optical material is superior in transparency, heat resistance, surface hardness, mechanical strength, and other properties.
    • 一种光学材料,包括由由由式(I)表示的至少一种化合物构成的第一结构单元和由至少一种由式(I)表示的化合物构成的聚合物)构成的树脂, (II),重均分子量为1×10 3〜5×10 6:碳原子数1〜18,碳原子数3〜8的环烷基等。 (II)其中R2表示氢或碳原子数为1〜8的烷基,R3和R4分别表示碳原子数1〜8的烷基。 光学材料的透明性,耐热性,表面硬度,机械强度等特性优异。