C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 211/94 (2006.01) C07C 7/20 (2006.01) C07C 11/12 (2006.01) C07C 15/46 (2006.01) C07C 17/42 (2006.01) C07C 41/58 (2006.01) C07C 43/16 (2006.01) C07C 51/50 (2006.01) C07C 57/075 (2006.01) C07C 67/62 (2006.01) C07C 69/54 (2006.01) C07C 239/20 (2006.01) C07C 253/32 (2006.01) C07C 255/08 (2006.01) C07D 207/46 (2006.01) C07D 209/44 (2006.01) C07D 213/16 (2006.01) C07D 223/04 (2006.01) C07D 295/24 (2006.01) C07F 9/40 (2006.01) C08K 5/3435 (2006.01)
Patent
CA 2223112
1,2-Bis-adducts of stable hindered nitroxide compounds with substituted ethylenes are prepared by reacting two equivalents of nitroxyl compound with an ethylenically unsaturated compound such as styrene or an acrylate ester. These adducts are very effective inhibitors to prevent the premature polymerization of ethylenically unsaturated monomers when such monomers are distilled, processed or stored.
Cunkle Glen Thomas
Thompson Thomas Friend
von Ahn Volker Hartmut
Winter Roland Arthur Edwin
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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