C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/336
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)
Patent
CA 1260003
ABSTRACT OF THE DISCLOSURE Novel isocyanato-azetidinedione compounds are provided which have the formula Image I 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 intermediates 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-polyurethanes respectively by reaction with organic polyamines. This divisional speci- fication relates to an azetidinedione urethane having the formula III, wherein each A represents the group below III Image wherein R and R1 are as shown above, X is a divalent hydro- carbon radical, m has a value from about 1 to about 8, and R2 is the residue of a hydroxyl compound containing m hydroxyl groups.
571005
Gowling Lafleur Henderson Llp
The Dow Chemical Company
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