Modified styrenepolymers

Details Modified styrenepolymers Modified styrenepolymers

1972-12-18

1977-05-24

Hoke, V.P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260892, 260898, 260901, 260DIG43, 260897B, 260899, C08L 2518

Patent

active

040255808

ABSTRACT:
There is disclosed a process for preparing chemically modified styrene polymers and copolymers which comprises treating a polystyrene or a styrene copolymer with an acyl halide in the presence of a Lewis acid so as to introduce ketone groups into the treated polymer or copolymer in an amount sufficient to promote environmental photodegradation of the treated polymer or copolymer. The resulting modified polymers may be used as degradable packaging materials, or as additives to promote the environmental degradation of polystyrene and related materials.

REFERENCES:
patent: 2374589 (1945-04-01), Dreisbach
patent: 2500082 (1950-03-01), Lieber et al.
patent: 2713570 (1955-07-01), Kenyon et al.
patent: 3219644 (1965-11-01), Leavitt
patent: 3304294 (1967-02-01), Leavitt et al.
patent: 3434979 (1969-03-01), Gregor et al.
patent: 3753952 (1973-08-01), Guillet

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