C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/335.5, 260/2
C07D 205/10 (2006.01) C07D 205/12 (2006.01) C07D 403/14 (2006.01) C08G 18/32 (2006.01) C08G 18/50 (2006.01) C08G 18/71 (2006.01) C08G 18/78 (2006.01) C08G 71/02 (2006.01)
Patent
CA 1246072
-1- ABSTRACT OF THE DISCLOSURE Novel isocyanato-azetidinedione compounds are provided which have the formula Image wherein R and R1 can be independently selected from hydrogen and hydrocarbyl or can be joined together and along with the carbon to which they are attached represent a cycloalkane residue having 4 to 6 ring carbon atoms, y is an integer from 1 to 7 and X is a hydrocarbon radical having a valency of y plus one. The monoisocyanate compounds are used as inter- mediates to provide further novel azetidinedione containing derivatives in the form of azetidinedione- isocyanurates (II) and azetidinedione-urethanes (III). All three classes of compounds can be employed as acid scavenging agents for stabilizing various kinds of halogenated polymer systems. Notably, (I) and (III) form highly useful polyamide-polyureas and polyamide-poly- urethanes respectively by reaction with organic polyamines.
478980
Gowling Lafleur Henderson Llp
The Dow Chemical Company
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