公开(公告)号：US5093376A

公开(公告)日：1992-03-03

申请号：US554696

申请日：1990-07-18

申请人： Volker Mohring ,  Volker Zellmer ,  Georg Burkhart ,  Jurgen Fock ,  Hans-Heinrich Schlons

发明人： Volker Mohring ,  Volker Zellmer ,  Georg Burkhart ,  Jurgen Fock ,  Hans-Heinrich Schlons

IPC分类号： C08J9/02 ,  C08G18/00 ,  C08G18/08 ,  C08G18/42 ,  C08G18/61 ,  C08G18/62 ,  C08G101/00 ,  C08J9/00

CPC分类号： C08J9/0061 ,  C08G18/42 ,  C08G2101/0008 ,  C08J2375/04

摘要： A method is disclosed for the preparation of flexible polyester polyurethane foam by reaction of at least difunctional polyesterols with at least difunctional organic isocyanates in the presence of catalysts and a stabilizer mixture of organic and organosilicon compounds, water, optionally blowing agents and optionally conventional additives, wherein the stabilizer mixture used comprisesa) a (meth)allyl polyoxyalkylene ether polymer or its copolymer with vinyl monomers andb) a polyoxyethylene-polysiloxane block copolymer,in a ratio by weight of a:b of 1:9 to 9:1. The polyester foam obtained are open celled to a high degree and have an excellent die-cuttability.

摘要翻译： 公开了用于通过在催化剂和有机和有机硅化合物的稳定剂混合物，水，任选的发泡剂和任选的常规添加剂的存在下使至少二官能的聚酯与至少双官能的有机异氰酸酯反应来制备柔性聚酯聚氨酯泡沫的方法， 其中使用的稳定剂混合物包括a）（甲基）烯丙基聚氧化烯醚聚合物或其与乙烯基单体的共聚物和b）聚氧乙烯 - 聚硅氧烷嵌段共聚物，其重量比a:b为1:9至9:1。 所得到的聚酯泡沫体高度开孔，并且具有优异的可切割性。

公开(公告)号：US5132333A

公开(公告)日：1992-07-21

申请号：US746127

申请日：1991-08-15

申请人： Georg Burkhart ,  Hans-Heinrich Schlons ,  Volker Zellmer

发明人： Georg Burkhart ,  Hans-Heinrich Schlons ,  Volker Zellmer

IPC分类号： C08G18/38 ,  C08G18/48 ,  C08G18/66 ,  C08J9/00 ,  C08K5/09 ,  C08K5/098

CPC分类号： C08J9/0023 ,  C08G18/3897 ,  C08K5/098 ,  C08G2101/0008 ,  C08G2101/005 ,  C08J2375/04

摘要： A method for the preparation of flexible foams containing urethane groups and having a reduced hardness is disclosed. Polyethers, having at least two hydroxyl groups and a molecular weight of 400 to 12,000 are reacted with polyisocyanates in the presence of catalysts and water and, optionally, in the presence of emulsifiers, stabilizers, cross linking agents, blowing agents and conventional auxiliaries and additives. The method is carried out in the presence of 0.01 to 1.0 parts by weight, based on 100 parts by weight of the polyol, of the alkali salt or the alkaline earth metal salt of a hydroxycarboxylic acid. The method enables the use of chlorofluorocarbons to be omitted largely or completely as physical blowing agents.

摘要翻译： 公开了一种制备含有氨基甲酸酯基并具有降低的硬度的柔性泡沫的方法。 具有至少两个羟基并且分子量为400至12,000的聚醚在催化剂和水的存在下和任选地在乳化剂，稳定剂，交联剂，发泡剂和常规助剂和添加剂的存在下与多异氰酸酯反应 。 基于100重量份的多元醇，碱金属盐或羟基羧酸的碱土金属盐，在0.01〜1.0重量份的存在下进行。 该方法能够大大或完全地作为物理发泡剂来使用氯氟烃。