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1. 发明授权

US3869387A Process for the extraction of phenol from waste waters in the form of urea-formaldehyde-phenol condensates 失效
标题翻译：以尿素 - 甲醛 - 苯酚缩合物的形式从废水中提取苯酚的方法
公开(公告)号：US3869387A
公开(公告)日：1975-03-04
申请号：US36934573
申请日：1973-06-12
申请人： SIR SOC ITALIANA RESINE SPA
发明人： VARGIU SILVIO , GIOVANNI SESTO S , MAZZOLENI GIORGIO , PEZZOLI SILVESTRO
IPC分类号： B01J27/125 , C01F7/58 , C02F9/00 , C07C27/00 , C07C37/86 , C07C39/04 , C07C67/00 , C08G14/00 , C08G14/06 , C02B1/18
CPC分类号： C02F1/26 , C02F2101/345 , Y10S210/909
摘要： Phenol is extracted from waste waters by reacting formaldehyde, urea and phenol containing waste waters at a basic pH and high ratios of formaldehyde to urea, keeping the product at relatively acidic pH-values for short reaction times, reacting the obtained product with additional urea and waste water at slightly acidic pH-values and low ratios of formaldehyde to urea and adjusting the obtained product to a basic pH. The condensates obtained are suitable for use as adhesives and binders for wood.
摘要翻译：苯酚从废水中通过甲醛，尿素和含苯酚的废水在碱性pH和高比例的甲醛与尿素的反应中提取，保持产物在相对酸性pH值下反应时间短，使得到的产物与另外的尿素和废水处于酸性pH值低，甲醛与尿素的比例低，并将得到的产物调节至碱性pH。所得的缩合物适合用作木材的粘合剂和粘合剂。

2. 发明授权

US3860561A Process for the production of epoxy-novolak resins and products thereof 失效
标题翻译：用于生产环氧 - 诺瓦克树脂及其制品的方法
公开(公告)号：US3860561A
公开(公告)日：1975-01-14
申请号：US38722773
申请日：1973-08-09
申请人： SIR SOC ITALIANA RESINE SPA
发明人： VARGIU SILVIO , GIOVANNI SESTO S , PITZALIS MARIO , CRESPOLINI GIANCARLO
IPC分类号： C08G8/00 , C08G8/36 , C08G59/00 , C08G59/08 , C09D163/00 , C08G5/18
CPC分类号： C08G59/08
摘要： Process for the production of solid epoxy-novolak resins having a high content of epoxy groups by adding an inorganic base, preferably sodium hydroxide, in a quantity of about 2 to 10 wt. % of total quantity of base to be used to a fused novolak phenolic resin having an average molecular weight of about 500 to 650 and containing about 5 to 6 phenolic hydroxyl groups per molecule at about 80* to 100*C, the total quantity of base to be used corresponding to about 0.9 to 1.1 equivalents of base per mole equivalent of phenolic hydroxyl groups in the novolak phenolic resin, adding a epihalohydrin to the reaction mixture obtained in the course of at least about 2 hours at temperatures of about 80* to 100*C in a quantity of about 3 to 6 moles per mole equivalent of phenolic hydroxyl groups in the novolak phenolic resin, adding the remainder of the inorganic base to the reaction mixture obtained in the course of at least about 3 hours at temperatures of about 85* to 110*C, and separating the solid epoxy-novolak resin from the reaction mixture obtained.
摘要翻译：通过加入约2-10重量％的无机碱，优选氢氧化钠，生产具有高含量环氧基团的固体环氧 - 酚醛清漆树脂的方法。平均分子量为约500〜650，约80〜100℃，每分子含有约5〜6个酚羟基的熔融酚醛清漆酚醛树脂所用碱的总量的百分比，碱的总量在酚醛清漆酚醛树脂中相对于每摩尔当量酚羟基约0.9-1.1当量碱，在约80℃至100℃的温度下在至少约2小时内获得的反应混合物中加入表卤代醇在酚醛清漆酚醛树脂中每摩尔当量酚羟基约3至6摩尔的量的C C，将剩余的无机碱加入到在约85℃的温度下在至少约3小时的过程中获得的反应混合物 DEG至110℃，并从得到的反应混合物中分离固体环氧 - 酚醛清漆树脂。

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