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1. 发明授权

US06632914B2 Polyfunctional polyisocyanate polyadducts 失效
标题翻译：多官能多异氰酸酯多加成
公开(公告)号：US06632914B2
公开(公告)日：2003-10-14
申请号：US09886922
申请日：2001-06-21
申请人： Bernd Bruchmann , Konrad Stiefenhöfer
发明人： Bernd Bruchmann , Konrad Stiefenhöfer
IPC分类号： C08G1810
CPC分类号： C08G83/003 , C08G18/3271 , C08G18/8041
摘要： Polyfunctional polyisocyanate polyadducts are prepared by a process comprising (i) preparation of an adduct by reacting (a) an at least trifunctional component (a1) reactive with isocyanate groups or a difunctional component (a2) reactive with isocyanate groups or a mixture of the components (a1) and (a2) with (b) a di- or polyisocyanate, the reaction ratio being chosen so that on average the polyadduct (A) contains one isocyanate group and more than one group reactive with isocyanate groups, (ii) if required, intermolecular addition reaction of the adduct (A) to give a polyadduct (P) which contains on average one isocyanate group and more than two groups reactive with isocyanate groups, and (iii) reaction of the adduct (A) or of the polyadduct (P) with an at least difunctional component (c) reactive with isocyanate groups.
摘要翻译：多官能多异氰酸酯多加成分是通过以下方法制备的：（i）通过使（a）与异氰酸酯基反应的至少三官能组分（a1）或与反应性的二官能组分（a2）反应制备加合物异氰酸酯基团或组分（a1）和（a2）与（或）二异氰酸酯的混合物，（b）二异氰酸酯或多异氰酸酯，选择反应比，使得平均来说，聚加合物（A）含有一个异氰酸酯基团，（ii）如果需要，加合物（A）的分子间加成反应得到含有平均一个异氰酸酯基团和多于两个与异氰酸酯基反应的基团的多加成物（P）（iii）加合物（A）或多加成物（P）与至少与异氰酸酯基团反应的二官能组分（c）的反应。

2. 发明授权

US06376637B1 Dendritic and highly branched polyurethanes 有权
标题翻译：树枝状和高度支化的聚氨酯
公开(公告)号：US06376637B1
公开(公告)日：2002-04-23
申请号：US09491852
申请日：2000-01-26
申请人： Bernd Bruchmann , Ulrike Ehe , Frank Wingerter , Konrad Stiefenhöfer , Ulrich Treuling
发明人： Bernd Bruchmann , Ulrike Ehe , Frank Wingerter , Konrad Stiefenhöfer , Ulrich Treuling
IPC分类号： C08G1810
CPC分类号： C08G83/005 , C08G18/3206 , C08G18/3275 , C08G83/002
摘要： In a process for preparing dendritic or highly branched polyurethanes by reacting diisocyanates and/or polyisocyanates with compounds containing at least two groups which are reactive toward isocyanates, at least one of the reactants contains functional groups having a different reactivity compared to the other reactant and the reaction conditions are selected so that only certain reactive groups react with one another in each reaction step.
摘要翻译：在通过使二异氰酸酯和/或多异氰酸酯与含有至少两个对异氰酸酯反应的基团的化合物反应来制备树枝状或高度支化的聚氨酯的方法中，至少一种反应物含有与其它反应物相比具有不同反应性的官能团，选择反应条件使得在每个反应步骤中仅某些反应基团彼此反应。

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