Electrostatically paintable injection moldable blend of propylen

Details Electrostatically paintable injection moldable blend of propylen Electrostatically paintable injection moldable blend of propylen

1974-08-22

1976-06-15

Derrington, James H.

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

260 4246, 427 30, C08K 304, H01B 104

Patent

active

039636470

ABSTRACT:
An injection moldable, electrostatically paintable polyolefin composition comprising 100 parts of an ethylene/higher .alpha.-olefin copolymer rubber, 20-100 parts of a crystalline propylene polymer, and carbon black, said carbon black having a mean particle diameter of from about 15-30 millimicrons, an oil absorption number (A) having a minimum value of about 40 cc/100 g. and a maximum value wherein A is calculated from the formula A = 0.3116D.sup.2 -18.708D +359.67, wherein D is the mean particle diameter, with the proviso that the maximum value of A is never greater than 130 cc/100 g., said carbon black present within a range determined by the following formulas:

REFERENCES:
patent: 2997451 (1961-08-01), Miller
patent: 3379673 (1968-04-01), Rossman et al.
patent: 3402140 (1968-09-01), Bickel
patent: 3700614 (1972-10-01), Schenkerberg

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