Biodegradable starch plastics incorporating modified polyethylen

Details Biodegradable starch plastics incorporating modified polyethylen Biodegradable starch plastics incorporating modified polyethylen

1990-06-19

1992-05-19

Nutter, Nathan M.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

525191, 525240, 525252, C08L 300, C08L 2300, C08F 800

Patent

active

051150000

ABSTRACT:
A composition is disclosed for a biodegradable, blendable plastic having improved tensile strength. It consists of starch, oxidized polyethylene, and polyethylene. The starch is included in an amount up to 50% by weight, the oxidized polyethylene up to 15% by weight, and the remaining amount is polyethylene. It is preferred that high molecular weight oxidized polyethylene be used and in the method of producing the composition, it is preferred that the blending of the components occur at a temperature range of 110.degree. C. to 200.degree. C.

REFERENCES:
patent: 2676929 (1954-04-01), Duddy
patent: 3952347 (1976-04-01), Comerford et al.
patent: 4021388 (1977-05-01), Griffin
patent: 4133784 (1979-01-01), Otey et al.
patent: 4337181 (1982-06-01), Otey et al.
patent: 4624256 (1986-11-01), Messier et al.

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