High performance blow molding resins and process for their prepa

Details High performance blow molding resins and process for their prepa High performance blow molding resins and process for their prepa

1994-03-08

1996-01-23

Seccuro, Jr., Carman J.

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

Synthetic resins

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

525387, 264523, C08F11002, C08F21002

Patent

active

054865751

ABSTRACT:
A process is provided to improve the properties of polyethylene resins obtained from chromium catalyzed polymerizations and blow molded bottles produced therefrom. The process entails modifying the polyethylene resin by contacting the resin in a molten state with an organic peroxide at a temperature above the decomposition temperature of peroxide. Polyethylene resins utilized for the process have specific densities, melt indexes, long chain branching indexes, unsaturation contents and molecular weight distributions. Blow molded bottles produced from the modified resins have significantly increased top load stress crack resistance and improved swell characteristics.

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