Urea derivatives, process for their manufacture and their...

Details Urea derivatives, process for their manufacture and their... Urea derivatives, process for their manufacture and their...

C - Chemistry, Metallurgy

07

D

400/7077, 400/90

C07D 498/10 (2006.01) C07D 498/20 (2006.01) C08K 5/35 (2006.01)

Patent

CA 1123832

Abstract of the Disclosure The amide nitrogen of 9,9-dimethyl-2-oxa-4-oxo-3,8- diazaspiro-(4,5)-decane reacts with isocyanates or diiso- cyanates to give novel urea derivatives which can be used as light stabilizers for plastic materials.

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