Process for controlled degradation of propylene polymers

Details Process for controlled degradation of propylene polymers Process for controlled degradation of propylene polymers

1973-05-21

1976-02-24

Hamrock, William F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 937, 260 949GC, C08f 2722, C08f 2728

Patent

active

039403793

ABSTRACT:
A process is provided for the degradation of propylene polymers comprising contacting a propylene polymer exhibiting a first melt flow rate with oxygen or an oxygen-containing gas and an organic or inorganic peroxide; melting and working and resulting mixture in a high shear zone thereby degrading said propylene polymer; and recovering an essentially odor free propylene polymer exhibiting a second melt flow rate higher than said first melt flow rate.

REFERENCES:
patent: 2828296 (1958-03-01), Guillet
patent: 3144436 (1964-08-01), Greene et al.
patent: 3563972 (1971-02-01), Kowalski

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