C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 9/14 (2006.01) B29C 44/34 (2006.01) C08G 18/42 (2006.01)
Patent
CA 2439930
A method for manufacturing polyurethane and polyisocyanurate foams comprising the steps of charging at least one blowing agent and a polyol component to an in-line continuous mixer, wherein the at least one blowing agent and the polyol component are continuously charged in separate streams advanced at predetermined flow rates chosen to bring about a desired ratio of blowing agent to polyol component within the in-line continuous mixer.
L'invention concerne un procédé de fabrication de polyuréthanne et de mousses de polyisocyanurate consistant à introduire au moins un agent d'expansion et un composant polyol dans un agitateur-mélangeur permanent en ligne, dans lequel, l'agent d'expansion, au moins un, et le composant polyol sont introduits, en permanence, dans des flux séparés coulant à des débits prédéterminés choisis afin d'apporter la proportion souhaitée d'agent d'expansion au composant polyol à l'intérieur de l'agitateur-mélangeur permanent en ligne.
Douglas Bruce
Letts John
Bfs Diversified Products Llc
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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