Highly filled polyolefin compositions

Details Highly filled polyolefin compositions Highly filled polyolefin compositions

1974-11-25

1980-06-10

Derrington, James H.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

156158, 260 4215, 260 4217, 260 4218, 260 4246, 428252, 428284, 428285, 428286, 428287, 428288, B32B 1710

Patent

active

042073731

ABSTRACT:
A highly filled, mechanically strong and impact resistant composition is prepared by combining about 25-80% polyolefin with about 10-60% rigid inorganic particulate filler of aspect ratio less than 15, thoroughly blending using high shear equipment until the flexural modulus is at least 1.25 times that of the base polyolefin and subsequently incorporating therein, using low or non-shear techniques, about 10-45% fibrous reinforcement of length at least 11/2 inches.

REFERENCES:
patent: 3437550 (1969-08-01), Paul
patent: 3684645 (1972-08-01), Temple et al.
Oleesky et al., Handbook of Reinforced Plastics, Reinhold Pub. Corp., New York, 1964, p. 142.

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