Grafting of hindered C-nitro compounds onto polymers

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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525 77, 524259, 524260, C08F25500, C08K 532

Patent

active

050989570

ABSTRACT:
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.

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Takahashi et al., "The Polymerization and Copolymerization of Nitroalkyl Acrylates and Nitroalkyl Methacrylates", Journal of Applied Polymer Science, vol. 12, pp. 1683-1693 (1968).

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