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

1989-08-07

1992-03-24

Bleutge, John C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

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.

REFERENCES:
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patent: 4354007 (1982-10-01), Scott
patent: 4442264 (1984-04-01), Zabrocki
patent: 4743657 (1988-05-01), Rekers et al.
patent: 4885338 (1989-12-01), Takao
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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