C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 9/14 (2006.01) C08G 18/42 (2006.01) C08G 18/48 (2006.01)
Patent
CA 2468049
A method for producing a rigid, closed-cell polyurethane foam having a free- rise density of from about 1.3 lbs./ft.3 to about 4 lbs./ft.3 and exhibiting a shrinkage of less than 10%, comprises mixing together an isocyanate, at least one alkyl alkanoate blowing agent and at least one polyol having a hydroxyl number of from about 150 to about 800 and being selected from the group consisting of polyalkoxylated amines, polyalkoxylated ethers, and polyester polyols, to form a reaction mixture that is curable to produce such foam.
L'invention concerne un procédé de production d'une mousse de polyuréthane rigide à alvéoles fermées présentant une densité en expansion libre comprise entre approximativement 1,3 lbs./ft.?3¿ et approximativement 4 lbs./ft.?3¿ et un degré de retrait inférieur à 10 %. Ce procédé consiste entre autres à mélanger un isocyanate, au moins un agent d'expansion de type alcanoate d'alkyle et au moins un polyol présentant un nombre hydroxyle compris entre approximativement 150 et approximativement 800 et sélectionné dans le groupe comprenant des amines polyalcoxylées, des éthers polyalcoxylés, des polyols de polyester, pour former un mélange réactionnel durcissable et ainsi produire ladite mousse.
Kalinowski Timothy T.
Keske David G.
Matimba Victor
Modray David L.
Schulte Mark
Foam Supplies Inc.
Smart & Biggar
LandOfFree
Rigid foam compositions and methods employing alkyl... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rigid foam compositions and methods employing alkyl..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rigid foam compositions and methods employing alkyl... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1343590