C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 9/08 (2006.01) C08G 18/22 (2006.01) C08G 18/28 (2006.01) C08G 18/36 (2006.01) C08G 18/66 (2006.01) C08G 18/79 (2006.01) C08J 9/00 (2006.01)
Patent
CA 2324587
The invention provides polyisocyanurate systems for manufacture of polyisocyanurate foam components such as those from SRIM processes. The reaction systems include a polyisocyanate and a polyisocyanate reactive component that includes a trimerization catalyst, polyol, and a carboxylic acid blowing agent, optionally with water as a co-blowing agent. The reaction systems can be blown exclusively with carboxylic acid to produce SRIM products which can be demolded with reduced mold residence time.
L'invention concerne des systèmes de polyisocyanurate permettant la production de composants de mousse de polyisocyanurates tels que les composants obtenus par des procédés SRIM (moulage structurel par injection et réaction). Les systèmes réactionnels comprennent un polyisocyanate et un composant réactif au polyisocyanate comprenant un catalyseur de trimérisation, un polyol, et un agent d'expansion acide carboxylique et éventuellement de l'eau en tant que co-agent d'expansion. Ces systèmes réactionnels peuvent être expansés exclusivement avec de l'acide carboxylique ce qui permet d'obtenir des produits SRIM pouvant être démoulés après un temps de pause réduit.
Huntsman Ici Chemicals Llc
Smart & Biggar
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