C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 9/30 (2006.01) C09D 175/04 (2006.01)
Patent
CA 2291215
This invention relates to a process for the production of a polyurethane backing and air frothed foam on a substrate comprising the steps of a) mixing a polyisocyanate and a polyol blend in the presence of a catalyst to form a reaction mixture, b) applying the reaction mixture to a substrate, and c) curing the reaction mixture to form a polyurethane backing an/or an air frothed foam on the substrate. Suitable catalyst compositions for the present invention include those corresponding to the formula: (see above formula) wherein: each R: independently represents a linear or branched C1 to C24 (preferably from 5 to 16 carbon atoms and most preferably from 8 to 12 carbon atoms) alkyl group, or a cyclic group containing from 4 to 24 carbon atoms (preferably from 5 to 16 carbon atoms and most preferably from 8 to 12 carbon atoms).
Cline Robert L.
Erhart Gerard C.
Nefzger Hartmut
Rosthauser James W.
Corporation Bayer
Norton Rose Canada S.e.n.c.r.l.,s.r.l./llp
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