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发明授权
US08383695B2 Phenoxy resin for optical material, resin composition for optical material, resin film for optical material and optical waveguide using those 失效
用于光学材料的苯氧树脂，用于光学材料的树脂组合物，用于光学材料的树脂膜和使用这些的光波导的光波导

Phenoxy resin for optical material, resin composition for optical material, resin film for optical material and optical waveguide using those
摘要：
The present invention relates to a phenoxy resin for an optical material obtained by subjecting at least one selected from specific difunctional epoxy resins and at least one selected from specific difunctional phenols to polyaddition reaction, wherein a film comprising the above phenoxy resin has a refractive index of 1.580 or less at 25° C. and a wavelength of 830 nm, a resin composition for an optical material containing the above phenoxy resin, a resin film for an optical material comprising the above resin composition and an optical waveguide produced by using the above resin composition and/or the above resin film. The present invention can provide a phenoxy resin for an optical material which is excellent in a heat resistance and a transparency and which has a low refractive index, a resin composition for an optical material containing the above phenoxy resin, a resin film for an optical material comprising the above resin composition and an optical waveguide produced by using the above resin composition and/or the above resin film.
摘要（中）：

本发明涉及一种用于光学材料的苯氧基树脂，其通过使选自特定双官能环氧树脂和选自特定二官能酚中的至少一种的至少一种进行加聚反应而获得，其中包含上述苯氧基树脂的膜的折射率为 在25℃下波长830nm以下，波长830nm的光学材料用树脂组合物，含有上述树脂组合物的光学材料用树脂膜和使用上述树脂制成的光波导 组合物和/或上述树脂膜。 本发明可以提供一种耐热性和透明性优异且折射率低的用于光学材料的苯氧基树脂，含有上述苯氧基树脂的光学材料用树脂组合物，光学材料用树脂膜 包括上述树脂组合物和通过使用上述树脂组合物和/或上述树脂膜制造的光波导。

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