公开(公告)号：EP0804328B1

公开(公告)日：2001-10-17

申请号：EP95924975.6

申请日：1995-07-05

申请人： BAYER AG ,  Hennecke GmbH

发明人： EBELING, Wilfried ,  EIBEN, Robert ,  ALTHAUSEN, Ferdinand ,  RAFFEL, Reiner

IPC分类号： B29C44/46

CPC分类号： C08J9/122 ,  B29C44/3473 ,  B29C44/348 ,  B29C44/461 ,  C08J2375/04

摘要： The invention concerns a process and device for preparing foamed materials from two-component reactive plastics materials using carbon dioxide as expanding agent and by mixing at least one of the reactive components with carbon dioxide under pressure and generating a mixture containing liquid carbon dioxide, mixing with the other reactive component, expansion and curing of the plastics material. The reactive component mixture containing carbon dioxide is expanded at ambient pressure through at least one slotted grating (21) having narrow slotted spacings.

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.

公开(公告)号：EP0794857B1

公开(公告)日：1999-03-17

申请号：EP95939284.6

申请日：1995-11-15

申请人： BAYER AG ,  Hennecke GmbH

发明人： ALTHAUSEN, Ferdinand ,  RAFFEL, Reiner ,  EBELING, Wilfried ,  EIBEN, Robert

IPC分类号： B29C44/36

CPC分类号： B29C44/348 ,  B29C44/461 ,  C08J9/122 ,  C08J9/30

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.

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.

公开(公告)号：EP0804328A1

公开(公告)日：1997-11-05

申请号：EP95924975.0

申请日：1995-07-05

申请人： BAYER AG ,  Hennecke GmbH

发明人： EBELING, Wilfried ,  EIBEN, Robert ,  ALTHAUSEN, Ferdinand ,  RAFFEL, Reiner

IPC分类号： B29C44 ,  C08J9

CPC分类号： C08J9/122 ,  B29C44/3473 ,  B29C44/348 ,  B29C44/461 ,  C08J2375/04

摘要： The invention concerns a process and device for preparing foamed materials from two-component reactive plastics materials using carbon dioxide as expanding agent and by mixing at least one of the reactive components with carbon dioxide under pressure and generating a mixture containing liquid carbon dioxide, mixing with the other reactive component, expansion and curing of the plastics material. The reactive component mixture containing carbon dioxide is expanded at ambient pressure through at least one slotted grating (21) having narrow slotted spacings.

公开(公告)号：EP0794857A1

公开(公告)日：1997-09-17

申请号：EP95939284.0

申请日：1995-11-15

申请人： BAYER AG ,  Hennecke GmbH

发明人： ALTHAUSEN, Ferdinand ,  RAFFEL, Reiner ,  EBELING, Wilfried ,  EIBEN, Robert

IPC分类号： B29C44 ,  B29B7 ,  B29C39 ,  C08J9 ,  B29K105

CPC分类号： B29C44/348 ,  B29C44/461 ,  C08J9/122 ,  C08J9/30

摘要： A process is described for producing foam materials from two-component reactive plastics using carbon dioxide as blowing agent by mixing at least one of the reactive components with carbon dioxide under pressure, mixing the components, at least one of which contains carbon dioxide under pressure, expanding the reactive mixture containing carbon dioxide obtained by mixing, and hardening, wherein the expansion takes place suddenly with the production of high rates of shear. Preferably the rate of flow of the reaction mixture is reduced after expansion.

摘要翻译： 描述了一种用于使用二氧化碳作为发泡剂由双组分反应性塑料生产泡沫材料的方法，其中将至少一种反应性组分与二氧化碳在压力下混合，将这些组分中的至少一种在加压下含有二氧化碳， 使通过混合和硬化获得的含二氧化碳的反应混合物膨胀，其中膨胀发生突然发生并产生高速剪切。 优选膨胀后反应混合物的流速降低。

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.