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公开(公告)号：EP0576443B1
公开(公告)日：1995-11-29
申请号：EP92905375.9
申请日：1992-02-28
申请人： BAYER AG
发明人： KRIPPL, Kurt , EBELING, Wilfried , FIETZ, Jürgen , SULZBACH, Hans-Michael , RAFFEL, Reiner , ALTHAUSEN, Ferdinand
IPC分类号： B29B7/74
CPC分类号： B29C44/3446 , B29B7/7485
摘要： In order to maintain the variations in the quantity of additive supplied, caused by pressure fluctuations in the system, within negligible limits during the production of a polyurethane reaction mixture made of fluid reaction components and an additive, in particular an expanding agent, the supply line (4) that leads to the mixing head (6) is subdivided into a main line (8) and a secondary line (9) and the additive is supplied into the secondary flow, which is essentially smaller than the main flow.
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2.发明授权
公开(公告)号：EP0907478B1
公开(公告)日：2001-10-04
申请号：EP97927040.2
申请日：1997-05-26
申请人： BAYER AG , Hennecke GmbH
CPC分类号： C08J9/30 , B29C44/3446 , B29C44/461 , C08J9/122 , C08J2375/04
摘要： The invention relates to a process for continuous production of polyurethane slab-stock foam using carbon dioxide (40), dissolved physically under pressure, as the foaming agent. Before mixing the constituents polyhydric alcohol (36) and isocyanate (35), said carbon dioxide (40) is dissolved in the polyhydric alcohol constituent, and air or nitrogen (39) is dissolved in the isocyanate constituent. Both constituents are delivered to a mixing chamber (3) in which there is a pressure 70 to 150 % of the solution pressure of the CO2 in the polyhydric alcohol constituent. The isocyanate constituent is delivered at a pressure of at least 30 bar to the mixing chamber, and by dropping to the mixing chamber pressure is sprayed into said mixing chamber. Air or nitrogen amounting to 1 g per kg of CO2 is dissolved in the isocyanate constituent, and the mixture drops to atmospheric pressure on leaving the mixing chamber.
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3.发明公开VERFAHREN UND VORRICHTUNG ZUR SCHAUMHERSTELLUNG MITTELS UNTER DRUCK GELÖSTEM KOHLENDIOXID 失效FOR泡沫塑料的生产方法和装置通过在压力溶解的二氧化碳
公开(公告)号：EP0907479A1
公开(公告)日：1999-04-14
申请号：EP97923095.0
申请日：1997-05-16
申请人： Hennecke GmbH , BAYER AG
发明人： SULZBACH, Hans-Michael , ALTHAUSEN, Ferdinand , RAFFEL, Reiner , EIBEN, Robert , EBELING, Wilfried
IPC分类号： B29C44
CPC分类号： B29C44/461
摘要： A process and a device are described for continuous production of foam slabstock by foaming a reactive polyurethane mixture containing carbon dioxide dissolved under pressure. The pressure of the mixture is dissipated on passing through an annular slot-shaped relief area. Blockage of the slot owing to shifts in the peripheral surfaces of the slot is prevented.
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4.发明公开VERFAHREN UND VORRICHTUNG ZUM HERSTELLEN EINES POLYURETHAN-REAKTIONSGEMISCHES 失效的方法和设备用于制造聚氨酯反应混合物。
公开(公告)号：EP0576443A1
公开(公告)日：1994-01-05
申请号：EP92905375.0
申请日：1992-02-28
申请人： BAYER AG
发明人： KRIPPL, Kurt , EBELING, Wilfried , FIETZ, Jürgen , SULZBACH, Hans-Michael , RAFFEL, Reiner , ALTHAUSEN, Ferdinand
IPC分类号： B29B7
CPC分类号： B29C44/3446 , B29B7/7485
摘要： Lors de la fabrication d'un mélange réactionnel de polyuréthane constitué de réactifs fluides et d'un additif, en particulier agent propulseur, pour maintenir dans des limites négligeables les variations du débit d'additif provoquées en cas de variations de pression dans le système, la conduite (4) menant le produit à la tête mélangeuse (6) est divisée en une conduite principale (8) et une conduite secondaire (9), et l'additif dosé est injecté dans le courant secondaire qui est beaucoup moins important que le courant principal.
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5.发明授权METHOD AND DEVICE FOR THE PRODUCTION OF FOAM USING CARBON DIOXIDE DISSOLVED UNDER PRESSURE 失效FOR泡沫塑料的生产方法和装置通过在压力溶解的二氧化碳
公开(公告)号：EP0767728B2
公开(公告)日：2003-04-16
申请号：EP95924245.4
申请日：1995-06-16
申请人： BAYER AG , Hennecke GmbH
IPC分类号： B29C44/46
CPC分类号： B29C44/461 , B29C44/3473 , B29C44/348 , Y10S261/26
摘要： A method and device are described for the production of foams from two-component reactive mixtures using carbon dioxide as expanding agent, by mixing at least one of the reactive components with carbon dioxide under pressure. That mixture is then mixed with the other reactive component(s) to form a foamable reactive mixture, which is expanded and cured to form the final product. The foamable reactive mixture is expanded to ambient pressure through at least one fine-meshed screen (21a, 21b, 21c).
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6.发明公开
公开(公告)号：EP0907478A1
公开(公告)日：1999-04-14
申请号：EP97927040.0
申请日：1997-05-26
申请人： BAYER AG , Hennecke GmbH
CPC分类号： C08J9/30 , B29C44/3446 , B29C44/461 , C08J9/122 , C08J2375/04
摘要： The invention relates to a process for continuous production of polyurethane slab-stock foam using carbon dioxide (40), dissolved physically under pressure, as the foaming agent. Before mixing the constituents polyhydric alcohol (36) and isocyanate (35), said carbon dioxide (40) is dissolved in the polyhydric alcohol constituent, and air or nitrogen (39) is dissolved in the isocyanate constituent. Both constituents are delivered to a mixing chamber (3) in which there is a pressure 70 to 150 % of the solution pressure of the CO2 in the polyhydric alcohol constituent. The isocyanate constituent is delivered at a pressure of at least 30 bar to the mixing chamber, and by dropping to the mixing chamber pressure is sprayed into said mixing chamber. Air or nitrogen amounting to 1 g per kg of CO2 is dissolved in the isocyanate constituent, and the mixture drops to atmospheric pressure on leaving the mixing chamber.
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7.发明授权METHOD AND DEVICE FOR THE PRODUCTION OF FOAM USING CARBON DIOXIDE DISSOLVED UNDER PRESSURE 失效FOR泡沫塑料的生产方法和装置通过在压力溶解的二氧化碳
公开(公告)号：EP0767728B1
公开(公告)日：1998-05-20
申请号：EP95924245.4
申请日：1995-06-16
申请人： BAYER AG , Hennecke GmbH
IPC分类号： B29C44/46
CPC分类号： B29C44/461 , B29C44/3473 , B29C44/348 , Y10S261/26
摘要： A method and device are described for the production of foams from two-component reactive mixtures using carbon dioxide as expanding agent, by mixing at least one of the reactive components with carbon dioxide under pressure. That mixture is then mixed with the other reactive component(s) to form a foamable reactive mixture, which is expanded and cured to form the final product. The foamable reactive mixture is expanded to ambient pressure through at least one fine-meshed screen (21a, 21b, 21c).
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8.发明授权VERFAHREN UND VORRICHTUNG ZUR SCHAUMHERSTELLUNG MITTELS UNTER DRUCK GELÖSTEM KOHLENDIOXID 失效FOR泡沫塑料的生产方法和装置通过在压力溶解的二氧化碳
公开(公告)号：EP0907479B1
公开(公告)日：2001-08-22
申请号：EP97923095.0
申请日：1997-05-16
申请人： Hennecke GmbH , BAYER AG
发明人： SULZBACH, Hans-Michael , ALTHAUSEN, Ferdinand , RAFFEL, Reiner , EIBEN, Robert , EBELING, Wilfried
IPC分类号： B29C44/46
CPC分类号： B29C44/461
摘要： A process and a device are described for continuous production of foam slabstock by foaming a reactive polyurethane mixture containing carbon dioxide dissolved under pressure. The pressure of the mixture is dissipated on passing through an annular slot-shaped relief area. Blockage of the slot owing to shifts in the peripheral surfaces of the slot is prevented.
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9.发明公开METHOD AND DEVICE FOR THE PRODUCTION OF FOAM USING CARBON DIOXIDE DISSOLVED UNDER PRESSURE 失效FOR泡沫塑料的生产方法和装置通过在压力溶解的二氧化碳
公开(公告)号：EP0767728A1
公开(公告)日：1997-04-16
申请号：EP95924245.0
申请日：1995-06-16
CPC分类号： B29C44/461 , B29C44/3473 , B29C44/348 , Y10S261/26
摘要： A method and device are described for the production of foams from two-component reactive mixtures using carbon dioxide as expanding agent, by mixing at least one of the reactive components with carbon dioxide under pressure. That mixture is then mixed with the other reactive component(s) to form a foamable reactive mixture, which is expanded and cured to form the final product. The foamable reactive mixture is expanded to ambient pressure through at least one fine-meshed screen (21a, 21b, 21c).
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