EP 0942819 A2 19990922 - PROCESS AND LOW-OUTPUT PLANT FOR THE CONTINUOUS PRODUCTION OF SLAB-STOCK FOAM
Title (en)
PROCESS AND LOW-OUTPUT PLANT FOR THE CONTINUOUS PRODUCTION OF SLAB-STOCK FOAM
Title (de)
VERFAHREN UND ANLAGE MIT NIEDRIGEM AUSGANG ZUR KONTINUIERLICHEN HERSTELLUNG VON SCHAUMSTOFFBLÖCKEN
Title (fr)
PROCEDE ET INSTALLATION A FAIBLE DEBIT POUR LA PRODUCTION CONTINUE DE PLAQUES DE MOUSSE
Publication
Application
Priority
- EP 9706555 W 19971124
- IT MI962478 A 19961127
- IT MI962599 A 19961211
Abstract (en)
[origin: WO9823429A2] A process and a low-output plant (10, 12, 13) for the continuous slab-stock foam. An MDI-based chemical component is mixed with a polyole and carbon dioxide (CO2) and the frothed mixture is delivered on a substrate (11) moving toward a slab-stock cutting zone (16). The quantity of carbon dioxide (CO2) is kept at a value greater than 1 %, preferably within 1.5 and 5 % in respect to the polyole component to have an intensive frothing avoiding underrunning of the foam. Changing formulation, the quantity of CO2 is kept to a substantially constant value whereas water varies depending on the total expansion index and the required density of the foam. It is so possible to use a small sized and low-output plant pre-assembled in standard containers in the form of operative units, to produce foams of different densities.
IPC 1-7
IPC 8 full level
B29C 44/30 (2006.01); C08J 9/12 (2006.01)
CPC (source: EP)
B29C 44/30 (2013.01); C08J 9/122 (2013.01); C08J 2375/04 (2013.01)
Citation (search report)
See references of WO 9823429A2
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
WO 9823429 A2 19980604; WO 9823429 A3 19981029; EP 0942819 A2 19990922; NO 992533 D0 19990526; NO 992533 L 19990709
DOCDB simple family (application)
EP 9706555 W 19971124; EP 97953694 A 19971124; NO 992533 A 19990526