Molded calcium carbonate filled propylene resin composites

Details Molded calcium carbonate filled propylene resin composites Molded calcium carbonate filled propylene resin composites

1977-03-09

1978-10-17

Derrington, James H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 23H, 260 4246, C08K 326

Patent

active

041208447

ABSTRACT:
A method for increasing impact properties of calcium carbonate filled propylene resin composites, particularly impact properties at low temperatures, which comprises admixing critically sized particles of propylene homopolymer and copolymer resins and calcium carbonate filler to form uniform, preferably powdery, blends particularly suitable for such shaping operations as injection molding.

REFERENCES:
patent: 3700614 (1972-10-01), Schenkerberg
patent: 3919164 (1975-11-01), Hattori
patent: 3997494 (1976-12-01), Lever

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