Continuous process for the oxidation of polyethylene

Details Continuous process for the oxidation of polyethylene Continuous process for the oxidation of polyethylene

1994-05-03

1995-03-28

Lipman, Bernard

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

Synthetic resins

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

5253338, C08F 806

Patent

active

054018110

ABSTRACT:
Disclosed is a process for the solid state oxidation of particulate polyethylene. This oxidation process entails continuously introducing a free radical initiator, an oxygen containing gas, and particulate polyethylene into a reactor into an agitated bed that is filled with a majority of a particulate oxidized polyethylene that acts as seed. This process dramatically reduces the residence time of the oxidation of particulate polyethylene by introducing a minor amount of fresh, unoxidized particulate polyethylene into a bed of particulate oxidized polyethylene.

REFERENCES:
patent: 3322711 (1967-05-01), Bush et al.
patent: 4459388 (1984-07-01), Hettche et al.
patent: 4889847 (1989-12-01), Schuster et al.
patent: 5064908 (1991-11-01), Schuster et al.

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