B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 44/60 (2006.01) B29C 44/10 (2006.01) B29C 44/28 (2006.01) B29C 67/22 (1990.01)
Patent
CA 2123111
The method according to the invention comprises preparing a polymerizable reaction mixture containing a blowing agent, applying the reaction mixture onto moving conveyor means (7, 10) and allowing a free rise expansion and polymerization of this reaction mixture within a substantially hermetically closed space (17). The pressure in this space is maintained within a predetermined pressure range by continuously supplying gas into said space, in addition to the blowing gas production, and by simultaneously exhausting gas from said space. In this way, pressure fluctuations may be reduced in said space and further parameters such as the temperature can be controlled so as to enable to produce a foam with constant properties. The invention also relates to device comprising a substantially hermetically enclosed continuous polyurethane slabstock foam producing machine (1) for performing the method according to the invention.
Procédé consistant à préparer un mélange réactionnel polymérisable contenant un agent porogène, à appliquer le mélange réactionnel sur des dispositifs transporteurs mobiles (7, 10), et à permettre le gonflage libre et la polymérisation dudit mélange réactionnel dans un volume sensiblement hermétique (17). On maintient la pression au sein dudit volume dans un domaine de pression prédéterminé en introduisant en continu dans ledit volume un gaz qui s'ajoute à la production d'agent porogène, et simultanément en évacuant le gaz dudit volume. Ainsi, on peut réduire les variations de pression dans ledit volume, et régler les paramètres tels que la température de manière à permettre la production d'une mousse présentant des caractéristiques homogènes. On a également prévu une machine sensiblement hermétique (1) de production en continu de blocs de mousse polyuréthane.
Blackwell Brian James
Derksen Johannes A. M. G.
Jourquin Lucien
Mortelmans Rudi
Gowling Lafleur Henderson Llp
Prefoam Ag
LandOfFree
Method and device for the continuous manufacture of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for the continuous manufacture of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for the continuous manufacture of... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1423736