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1. 发明申请

US20050222380A1 METHOD OF PURIFYING POLYETHER POLYOLS OF NON-VOLATILE IMPURITIES 有权
标题翻译：纯化非挥发性聚合物多元醇的方法
公开(公告)号：US20050222380A1
公开(公告)日：2005-10-06
申请号：US10813725
申请日：2004-03-31
申请人： David Peters , Jon Speier , Alexander Gershanovich
发明人： David Peters , Jon Speier , Alexander Gershanovich
IPC分类号： C08G18/40 , C08G18/48 , C08G18/65 , C08G65/30 , C08K3/00
CPC分类号： C08G18/4883 , C08G18/4072 , C08G18/657 , C08G65/30 , C08G2101/0008 , C08G2101/0083
摘要： The subject invention provides polyurethane foam and a method of purifying polyether polyols of non-volatile impurities for use in forming the polyurethane foam. The method includes the step of providing a crude polyether polyol having a non-volatile impurity present therein. The crude polyether polyol is contacted with an adsorbent selected from at least one of activated carbon, diatomaceous earth, charcoal, attapulgite, and clay to remove the impurity and filtered to form a purified polyether polyol. The filtering of the crude polyether polyol is carried out through a filter media that is used both in a pre-filtering step prior to adding the adsorbent and the filtering step to remove the adsorbent to reduce losses of the purified polyether polyol because of its high viscosity. The purified polyether polyol is then used to form a polyurethane foam having improved stability.
摘要翻译：本发明提供了用于形成聚氨酯泡沫的聚氨酯泡沫和净化非挥发性杂质的聚醚多元醇的方法。该方法包括提供其中存在非挥发性杂质的粗聚醚多元醇的步骤。将粗聚醚多元醇与选自活性炭，硅藻土，活性炭，绿坡缕石和粘土中的至少一种的吸附剂接触以除去杂质并过滤以形成纯化的聚醚多元醇。粗聚醚多元醇的过滤通过过滤介质进行，该过滤介质在添加吸附剂之前在预过滤步骤中使用，并且过滤步骤以除去吸附剂以减少纯化的聚醚多元醇的损失，因为其高粘度。然后将纯化的聚醚多元醇用于形成具有改进的稳定性的聚氨酯泡沫。

2. 发明授权

US06469121B1 Process for the production of allophanate modified isocyanates 有权
标题翻译：生产脲基甲酸酯改性异氰酸酯的方法
公开(公告)号：US06469121B1
公开(公告)日：2002-10-22
申请号：US09751972
申请日：2000-12-29
申请人： Jon Speier , Thirumurti Narayan , Nikolay Lebedinski
发明人： Jon Speier , Thirumurti Narayan , Nikolay Lebedinski
IPC分类号： C08G1822
CPC分类号： C08G18/222 , C08G18/7837
摘要： A method for the preparation of a storage stable organic polyisocyanate having allophanate linkages prepared by reacting a urethane containing organic polyisocyanate with a reactive hydroxyl compound in the presence of a liquid organic titanium oxide, or zirconium oxide, or hafnium oxide catalyst that is fully miscible in the reactive hydroxyl compound is disclosed. After completion of the allophanate reaction, the catalyst is deactivated by the use of a strong inorganic acid, organic acid, organic chloroformate or acid chloride.
摘要翻译：一种制备具有脲基甲酸酯键的储存稳定的有机多异氰酸酯的方法，其通过使氨基甲酸酯含有机多异氰酸酯与活性羟基化合物在液体有机氧化钛或氧化锆或氧化铪催化剂存在下反应制备，所述催化剂与所述反应性羟基化合物完全混溶公开了反应性羟基化合物。在脲基甲酸酯反应完成后，通过使用强无机酸，有机酸，有机氯甲酸酯或酰氯使催化剂失活。

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