EP 0517858 A1 19921216 - PROCESS FOR PRODUCING N=C=O FOAMS AND THE CONTROLLED PRE- AND POST-EXPANSION THEREOF.
Title (en)
PROCESS FOR PRODUCING N=C=O FOAMS AND THE CONTROLLED PRE- AND POST-EXPANSION THEREOF.
Title (de)
Verfahren zur Herstellung von N-C-O Schaumstoffen sowie deren kontrollierte Vor-oder Nachschäumung.
Title (fr)
PROCEDE DE PRODUCTION DE MOUSSES N=C=O ET LEUR PRE- ET POST-EXPANSIONS REGULEES.
Publication
Application
Priority
US 47924690 A 19900213
Abstract (en)
[origin: WO9112287A1] A method for producing polymeric foams based upon the N=C=O technology, intended for thermal insulation, floatation, rigidization, and like comprises the use of a liquid gas blowing agent, such as a liquid CO2 in the production of the foam. In addition, the present invention relates to the control of the amount of pre-expansion and post-expansion of the foam. This control can be provided through both the use of a co-blowing agent as well as controlling the pressure at the mixing zone.
Abstract (fr)
Procédé de production de mousses polymères à base de la technologie N=C=O, destinées à l'isolation thermique, la flottation, la rigidification et analogue, consistant à utiliser des agents gonflants gazeux liquides, tels que du CO2 liquide dans la production de la mousse. De plus, l'invention concerne la régulation de la quantité de pré-expansion et de post-expansion de la mousse. Cette régulation peut être effectuée à la fois par l'emploi d'un co-agent gonflant ainsi que par la régulation de la pression au niveau de la zone de mélange.
IPC 1-7
IPC 8 full level
CPC (source: EP)
C08J 9/127 (2013.01); C08J 9/149 (2013.01); C08J 2203/14 (2013.01); C08J 2203/142 (2013.01); C08J 2375/04 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
WO 9112287 A1 19910822; CA 2075975 A1 19910814; EP 0517858 A1 19921216; EP 0517858 A4 19930728
DOCDB simple family (application)
US 9100845 W 19910212; CA 2075975 A 19910212; EP 91907521 A 19910212