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发明公开
CN1972978A 环氧树脂、环氧树脂组合物及其固化物 无效 - 撤回

环氧树脂、环氧树脂组合物及其固化物
摘要：
本发明涉及固化物具有高耐热性的环氧树脂，其目的在于提供与现有的高耐热性环氧树脂相比，密接性及韧性改善的环氧树脂。本发明提供环氧树脂，其可以通过将(a)和(b)的混合物进行缩水甘油基化而得到，其中(a)为酚类与乙二醛的缩合物，为含80％以上(由凝胶渗透层析法所测定之面积％)式(1)所示化合物(式中，R各自独立地表示氢原子、碳原子数1至15之烃基或三氟甲基)的酚类缩合物；(b)为(a)以外的酚类，或酚树脂的混合物。
摘要（英）：

The present invention relates to an epoxy resin whose cured product has a high heat resistance, and directed to provide an epoxy resin improved in adhesiveness and toughness in comparison with the conventional highly heat resistant epoxy resin. Specifically disclosed is an epoxy resin obtainable by glycidylation of a mixture of (a) a phenol compound condensate which is a condensate of phenols and glyoxal and contains not less than 80% (area % by a gel permeation chromatography) of a compound represented by the formula (1): (wherein R represents each independently a hydrogen atom, (C 1 -C 15 ) hydrocarbon group or trifluoromethyl group); and (b) a phenol compound other than (a) or a phenol resin.

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