Method of producing modified polyethylene wax

Details Method of producing modified polyethylene wax Method of producing modified polyethylene wax

1972-08-15

1977-08-02

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

26034674, 260468G, 260485N, 260514G, 260533N, 428523, 526 53, 526 22, 526 56, C07D30789, C07D30760

Patent

active

040395600

ABSTRACT:
A method of producing a modified waxy ethylene polymer, which comprises polymerizing ethylene in an inert hydrocarbon solvent at 120.degree. - 250.degree. C. and pressure ranging from the vapor pressure of the solvent at the polymerization temperature to 100 Kg/cm.sup.2 using a catalyst composed of a halogen compound of titanium and/or vanadium and an organoaluminum compound supported on a carrier comprising a hydrocarbon-insoluble magnesium-containing compound to form a waxy ethylene polymer having a viscosity average molecular weight of 500 to 30000, reacting an unsaturated polycarboxylic acid with the resulting waxy ethylene polymer in the presence of a peroxide at a temperature above the melting point of the waxy ethylene polymer and up to 250.degree. C., and if desired, contacting the ethylene polymer, before or after the reaction with the unsaturated polycarboxylic acid, with oxygen or a gas containing oxygen.

REFERENCES:
patent: 2973344 (1961-02-01), Fasce
patent: 3403175 (1968-09-01), Volgemuth
patent: 3414551 (1968-12-01), Reid et al.
patent: 3450559 (1969-06-01), Schaufelberger
patent: 3450560 (1969-06-01), Bacskai
patent: 3590076 (1971-06-01), Heintzelman et al.
patent: 3642722 (1972-02-01), Knowles et al.
patent: 3687905 (1972-08-01), Dorer
patent: 3892717 (1975-07-01), Mori et al.

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