Grafting of hindered c-nitro compounds onto polymers

Details Grafting of hindered c-nitro compounds onto polymers Grafting of hindered c-nitro compounds onto polymers

C - Chemistry, Metallurgy

08

F

400/2022

C08F 291/00 (2006.01) C08F 255/02 (2006.01) C08F 283/00 (2006.01) C08F 283/02 (2006.01) C08F 283/04 (2006.01)

Patent

CA 1339228

There is disclosed a method for grafting C-nitro compounds onto preformed polymers. In the method a hindered C-nitro compound containing at least one polymerizable unsaturated group is reacted with a polymer in the presence of free radicals to thereby graft the C-nitro compound onto the polymer. The process has the advantages of being convenient, economical and applicable to conventional polymer processing steps. In a preferred embodiment, polymer stabilizing additives are prepared by the process in the form of masterbatches of polymer containing high concentrations of C-nitro compounds grafted thereon.

607705

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