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公开(公告)号:US5070114A
公开(公告)日:1991-12-03
申请号:US508726
申请日:1990-04-16
申请人: Arun Watts , Louis Muller , Gabriel Verhelst , Mireille De Witte , Tu Pham , Alain Parfondry
发明人: Arun Watts , Louis Muller , Gabriel Verhelst , Mireille De Witte , Tu Pham , Alain Parfondry
IPC分类号: C08G18/10 , C08G18/48 , C08G18/76 , C08G101/00
CPC分类号: C08G18/4837 , C08G18/10 , C08G18/7664 , C08G2101/0008 , C08G2101/0083
摘要: The invention relates to a liquid isocyanate-containing prepolymer composition having an average isocyanate functionality greater than 2 and an NCO content of from 2 to 15% by weight, as obtainable by reacting an isocyanate reactive polymer having an average nominal functionality of from 2 to 6 with a stoichiometric excess of a diphenylmethane diisocyanate composition containing at least 2% by weight of 2,4'-diphenylmethane diisocyanate and having an average isocyanate functionality in the range from 2 to 2.3. The invention also relates to a method for preparing a polyurethane foam, which comprises reacting such a prepolymer composition with water.
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公开(公告)号:US5278274A
公开(公告)日:1994-01-11
申请号:US774768
申请日:1991-10-10
申请人: Gabriel Verhelst , Louis Muller , Alain Parfondry
发明人: Gabriel Verhelst , Louis Muller , Alain Parfondry
CPC分类号: C08G18/0895 , C08G18/10 , C08G18/7664 , C08G2101/0008 , C08G2101/005 , C08G2101/0083
摘要: A continuous process for the preparation of an isocyanate-terminated prepolymer having an NCO content in the range from 2 to 15% by weight, said process comprising the steps of:(A) continuously delivering to a reaction zone an organic polyisocyanate composition and an isocyanate reactive compound having an average molecular weight of at least 1000 the relative proportions of isocyanate composition and isocyanate reactive compound being appropriate for the formation of a prepolymer having an NCO content in the indicated range;(B) allowing the isocyanate composition and the isocyanate reactive compound to react in the reaction zone to form an isocyanate-terminated prepolymer, and(C) continuously removing the prepolymer from the reaction zone.
摘要翻译: 一种用于制备NCO含量在2至15重量%范围内的异氰酸酯封端的预聚物的连续方法,所述方法包括以下步骤:(A)连续地向反应区输送有机多异氰酸酯组合物和异氰酸酯 平均分子量为1000以上的反应性化合物,其特征在于,所述异氰酸酯组合物和异氰酸酯反应性化合物的相对比例适合于形成指定范围内NCO含量的预聚物; (B)使异氰酸酯组合物和异氰酸酯反应性化合物在反应区中反应形成异氰酸酯封端的预聚物,(C)从反应区连续除去预聚物。
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公开(公告)号:US5430072A
公开(公告)日:1995-07-04
申请号:US87359
申请日:1993-07-08
申请人: Louis Muller , Tu Pham , Gabriel Verhelst
发明人: Louis Muller , Tu Pham , Gabriel Verhelst
IPC分类号: C08G18/08 , C08G18/10 , C08G18/48 , C08G18/70 , C08G18/72 , C08G18/76 , C08G101/00 , C08J9/02
CPC分类号: C08G18/7664 , C08G18/0895 , C08G18/10 , C08G18/4837 , C08G2101/0008 , C08G2101/005 , C08G2101/0058 , C08G2101/0083 , Y10S521/917
摘要: A method for the preparation of flexible polymeric foam by reacting a polyisocyanate component with an isocyanate-reactive component comprising at least 50% by weight of water, the polyisocyanate component comprising at least two polyisocyanate compositions, one of them being a low NCO isocyanate terminated prepolymer and the second being a high NCO polyisocyanate.
摘要翻译: 一种通过使多异氰酸酯组分与包含至少50重量%水的异氰酸酯反应性组分反应来制备柔性聚合物泡沫的方法,所述多异氰酸酯组分包含至少两种多异氰酸酯组合物,其中一种是低NCO异氰酸酯封端的预聚物 第二个是高NCO多异氰酸酯。
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公开(公告)号:US5624972A
公开(公告)日:1997-04-29
申请号:US415456
申请日:1995-04-03
申请人: Louis Muller , Tu Pham , Gabriel Verhelst
发明人: Louis Muller , Tu Pham , Gabriel Verhelst
IPC分类号: C08G18/08 , C08G18/10 , C08G18/48 , C08G18/70 , C08G18/72 , C08G18/76 , C08G101/00 , C08J9/02
CPC分类号: C08G18/7664 , C08G18/0895 , C08G18/10 , C08G18/4837 , C08G2101/0008 , C08G2101/005 , C08G2101/0058 , C08G2101/0083 , Y10S521/917
摘要: A method for the preparation of flexible polymeric foam by reacting a polyisocyanate component with an isocyanate-reactive component comprising at least 50% by weight of water, the polyisocyanate component comprising at least two polyisocyanate compositions, one of them being a low NCO isocyanate terminated prepolymer and the second being a high NCO polyisocyanate.
摘要翻译: 一种通过使多异氰酸酯组分与包含至少50重量%水的异氰酸酯反应性组分反应来制备柔性聚合物泡沫的方法,所述多异氰酸酯组分包含至少两种多异氰酸酯组合物,其中一种是低NCO异氰酸酯封端的预聚物 第二个是高NCO多异氰酸酯。
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公开(公告)号:USRE34669E
公开(公告)日:1994-07-19
申请号:US803959
申请日:1991-12-09
CPC分类号: C08G18/6594 , C08G18/5024 , C08G18/503 , C08G18/6523 , C08G18/6529 , C08G2101/0008 , C08G2101/005 , C08G2101/0075 , C08G2101/0083
摘要: A method to prepare polyurethane and/or polyurea flexible foams which comprises reacting:A. an organic polyisocyanate compositionB. an isocyanate-reactive composition containing:a. at least one high Mw isocyanate-reactive compoundb.sub.1. a primary or secondary amino-functional compound (so-called chain-extender) of Mw below 1000 in an amount of less than 1% by wt of high Mw isocyanate-reactive compound(s) orb.sub.2. a mixture of at least two chain extenders of which at least one is a primary or secondary amino-functional compound of Mw below 1000, in an amount of 0.1% to 10% by wt of high Mw isocyanate-reactive compound(s)C. H.sub.2 OD. optionally catalystsE. optionally further blowing agents which are different from H.sub.2 O.F. optionally further conventional additives.
摘要翻译: 一种制备聚氨酯和/或聚脲柔性泡沫的方法,其包括使有机多异氰酸酯组合物B.反应性异氰酸酯组合物包含:a。 至少一种高Mw异氰酸酯反应性化合物b1。 Mw小于1000的伯或仲氨基官能化合物(所谓的增链剂)的量小于1重量%的高Mw异氰酸酯反应性化合物或b2。 至少两种增链剂的混合物,其至少一种是Mw低于1000的伯或仲氨基官能化合物,其量为0.1重量%至10重量%的高Mw异氰酸酯反应性化合物C。 任选地,任选地,与H 2 O不同的另外的发泡剂。 F.任选的其它常规添加剂。
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公开(公告)号:US5034427A
公开(公告)日:1991-07-23
申请号:US440399
申请日:1989-11-22
CPC分类号: C08G18/503 , C08G18/6523 , C08G18/6529 , C08G2101/0008 , C08G2101/005 , C08G2101/0075 , C08G2101/0083
摘要: A method to prepare polyurethane and/or polyurea flexible foams which comprises reacting:A. an organic polyisocyanate compositionB. an isocyanate-reactive composition containing:a. at least one high Mw isocyanate-reactive compoundb.sub.1. a primary or secondary amino-functional compound (so-called chain-extender) of Mw below 1000 in an amount of less than 1% by wt of high Mw isocyanate-reactive compound(s) orb.sub.2. a mixture of at least two chain extenders of which at least one is a primary or secondary amino-functional compound of Mw below 1000, in an amount of 0.1% to 10% by wt of high Mw isocyanate-reactive compound(s)C. H.sub.2 OD. optionally catalystsE. optionally further blowing agents which are different from H.sub.2 O.F. optionally further conventional additives.
摘要翻译: 一种制备聚氨酯和/或聚脲柔性泡沫的方法,其包括使有机多异氰酸酯组合物B.反应性异氰酸酯组合物包含:a。 至少一种高Mw异氰酸酯反应性化合物b1。 Mw小于1000的伯或仲氨基官能化合物(所谓的增链剂)的量小于1重量%的高Mw异氰酸酯反应性化合物或b2。 至少两种增链剂的混合物,其至少一种是Mw低于1000的伯或仲氨基官能化合物,其量为0.1重量%至10重量%的高Mw异氰酸酯反应性化合物C。 任选地,任选地,与H 2 O不同的另外的发泡剂。 F.任选的其它常规添加剂。
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公开(公告)号:US5334689A
公开(公告)日:1994-08-02
申请号:US180740
申请日:1994-01-12
申请人: Louis Muller , Gabriel Verhelst
发明人: Louis Muller , Gabriel Verhelst
CPC分类号: C08G18/4804 , C08G18/12 , C08G2101/0008 , C08G2101/005 , C08G2101/0075 , C08G2101/0083
摘要: Process for preparing a flexible foam by reacting an isocyanate prepolymer having a free NCO content of 2-15% by weight, an isocyanate prepolymer having a free content of 25-31% by weight and an isocyanate-reactive composition comprising water.
摘要翻译: 通过使游离NCO含量为2-15重量%的异氰酸酯预聚物与游离含量为25-31重量%的异氰酸酯预聚物和包含水的异氰酸酯反应性组合物反应制备柔性泡沫的方法。
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公开(公告)号:US5270348A
公开(公告)日:1993-12-14
申请号:US48094
申请日:1993-04-12
申请人: Louis Muller , Gabriel Verhelst
发明人: Louis Muller , Gabriel Verhelst
IPC分类号: C08G18/10 , C08G18/12 , C08G18/48 , C08G101/00 , C08G18/14
CPC分类号: C08G18/4804 , C08G18/12 , C08G2101/0008 , C08G2101/005 , C08G2101/0075 , C08G2101/0083
摘要: Process for preparing a flexible foam by reacting an isocyanate prepolymer having a free NCO content of 2-15% by weight, an isocyanate prepolymer having a free content of 25-31% by weight and an isocyanate-reactive composition comprising water.
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公开(公告)号:US5134172A
公开(公告)日:1992-07-28
申请号:US541804
申请日:1990-06-21
CPC分类号: C08G18/4816 , C08G18/4018 , C08G18/4072 , C08G18/409 , C08L75/00 , C08G2130/00
摘要: An isocyanate-reactive composition comprising:(1) a first isocyanate-reactive compound having a functionality of from 2 to about 4 and an average equivalent weight of from about 750 to about 3000.(2) a second isocyanate-reactive compound which is normally immiscible with the first isocyanate-reactive compound and has a functionality of at least 2 and an average equivalent weight of at least 30, and(3) a miscibilizing amount of dispersed polyurethane and/or polyurea particles.
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公开(公告)号:US5691389A
公开(公告)日:1997-11-25
申请号:US757778
申请日:1996-11-27
申请人: Giovanni Parrinello , David Thorpe , Gabriel Verhelst , Julian Francis George Hopper , Mireille Berthine Albert De Witte
发明人: Giovanni Parrinello , David Thorpe , Gabriel Verhelst , Julian Francis George Hopper , Mireille Berthine Albert De Witte
IPC分类号: C08G18/00 , C08G18/08 , C08G18/10 , C08G18/48 , C08G18/66 , C08G65/00 , C08G65/26 , C08G65/30 , C08G65/32 , C08J11/24 , C08L71/02 , C08J11/04
CPC分类号: C08J11/24 , C08G18/4866 , C08G18/6674 , C08G65/2609 , C08L71/02 , C08G2101/0008 , C08G2101/0025 , C08J2375/04 , Y02W30/706 , Y10S521/912
摘要: Process for recycling flexible foams by glycolysis and extraction. The glycolysis is conducted by allowing the foam to react with low molecular weight polyols, then allowing the mixture to separate in two phases.
摘要翻译: 通过糖酵解和提取回收柔性泡沫的方法。 糖酵解通过使泡沫与低分子量多元醇反应,然后使混合物分两个阶段进行。
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