Polypropylene compositions containing bimodal calcium carbonate

Details Polypropylene compositions containing bimodal calcium carbonate Polypropylene compositions containing bimodal calcium carbonate

1984-12-27

1985-12-24

Jacobs, L. T.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523200, 524427, C08K 326

Patent

active

045607125

ABSTRACT:
Physical properties of filled polypropylene compositions are improved by using a calcium carbonate filler of bimodal particle size, e.g., a mean of 2 microns and a mean of 5 microns, and a polysiloxane additive. The compositions are useful as food containers.

REFERENCES:
patent: 3700614 (1972-10-01), Schenkerberg
patent: 4102974 (1978-07-01), Boni
patent: 4273691 (1981-06-01), MacLaury et al.
patent: 4407986 (1983-10-01), Nomura et al.

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