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1. 发明授权

US5395915A Method for simultaneous preparation of bisphenol F and novolak phenol resins 失效
标题翻译：同时制备双酚F和酚醛清漆酚树脂的方法
公开(公告)号：US5395915A
公开(公告)日：1995-03-07
申请号：US104920
申请日：1993-08-12
申请人： Shigeru Iimuro , Satoru Ito , Tomoko Takashima , Takashi Kitamura
发明人： Shigeru Iimuro , Satoru Ito , Tomoko Takashima , Takashi Kitamura
IPC分类号： C07C37/74 , C07C39/16 , C08G8/10 , C08G8/20 , C08G14/02 , C08G8/04
CPC分类号： C07C39/16 , C07C37/20 , C07C37/74 , C08G8/10 , C08G8/20 , Y02P20/582
摘要： Herein disclosed is a method for simultaneously preparing a highly pure bisphenol F and/or a bisphenol F for general use and a novolak phenol resin and/or a high molecular weight novolak phenol resin comprising the steps of:(1) a preparation step comprising reacting phenol with formaldehyde in the presence of an acid catalyst and removing the acid catalyst, water and the unreacted phenol from the resulting reaction product to give a crude bisphenol F;(2) a distillation step comprising distilling a part of the crude bisphenol F to give a highly pure bisphenol F, as a distillate, having a binuclear moiety-content of not less than 95% by weight and a novolak phenol resin, as a still-bottom product, having a binuclear moiety-content of not more than 15% by area;(3) a step for mixing the highly pure bisphenol F with the remaining crude bisphenol F to give a bisphenol F for general use; and(4) a step for polymerizing the novolak phenol resin with formaldehyde in the presence of an acid catalyst to give a high molecular weight novolak phenol resin.
摘要翻译：本文公开了一种用于同时制备用于一般用途的高纯度双酚F和/或双酚F和酚醛清漆酚醛树脂和/或高分子量酚醛清漆酚树脂的方法，包括以下步骤：（1）制备步骤，包括使苯酚与甲酸在酸催化剂存在下，从所得反应产物中除去酸催化剂，水和未反应的苯酚，得到粗双酚F; （2）蒸馏步骤，包括蒸馏粗双酚F的一部分，得到作为蒸馏物的高纯度双酚F，双核部分含量不小于95重量％，酚醛清漆酚树脂作为静止物双产物，双核部分含量不超过面积的15％; （3）将高纯度双酚F与剩余的粗双酚F混合以得到通常使用的双酚F的步骤; 和（4）在酸催化剂存在下使酚醛清漆酚醛树脂与甲醛聚合的步骤，得到高分子量酚醛清漆酚醛树脂。

2. 发明授权

US5552509A Phenolic resin compositions derived from bisphenol compounds and their condensates 失效
标题翻译：衍生自双酚化合物及其缩合物的酚醛树脂组合物
公开(公告)号：US5552509A
公开(公告)日：1996-09-03
申请号：US114081
申请日：1993-08-31
申请人： Tomoko Takashima , Shigeru Iimuro , Takashi Kitamura
发明人： Tomoko Takashima , Shigeru Iimuro , Takashi Kitamura
IPC分类号： B22C1/22 , C08G8/08 , C08G8/04
CPC分类号： B22C1/2253 , C08G8/08
摘要： A phenolic resin composition herein disclosed comprises, as essential components, (i) at least one phenol resin A selected from the group consisting of residues formed through purification of bisphenol A, residues obtained by cleaving the bisphenol A-purification residue, condensates of the bisphenol A-purification residue obtained by reacting the bisphenol A-purification residue with formaldehyde and condensates of the cleavage residue obtained by reacting the cleavage residue with formaldehyde, and (ii) at least one phenolic resin B selected from the group consisting of high-boiling fraction obtained through production of bisphenol F and condensates of the high-boiling fraction obtained by reacting the high-boiling fraction with formaldehyde. The phenolic resin composition can be used in making resin-coated sand particles which do not give out a bad smell and do not generate any soot and smoke during forming a mold by the shell molding method and which have good disintegration properties without using any sand-baking process.
摘要翻译：本文公开的酚醛树脂组合物包含作为必要组分的（i）至少一种选自由双酚A的纯化形成的残基的酚醛树脂A，通过裂解双酚A纯化残余物获得的残基，双酚的缩合物通过使双酚A纯化残余物与甲醛反应获得的A净化残余物和通过使裂解残基与甲醛反应而获得的裂解残基的缩合物，和（ii）至少一种酚醛树脂B，其选自高沸点馏分通过生产双酚F和通过使高沸点馏分与甲醛反应获得的高沸点馏分的冷凝物获得。酚醛树脂组合物可以用于制造不产生不良气味的树脂涂覆的砂粒，并且在通过壳模塑法形成模具期间不产生任何烟灰和烟雾，并且在不使用任何砂型的情况下具有良好的崩解性能，烘烤过程。

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