Impact polypropylene

Details Impact polypropylene Impact polypropylene

C - Chemistry, Metallurgy

08

L

400/6581, 400/65

C08L 23/12 (2006.01) C08L 23/08 (2006.01)

Patent

CA 1313282

- 8 - IMPACT POLYPROPYLENE ABSTRACT OF THE INVENTION A molded product exhibiting a blush of less than about 0.4 inch per 10 pounds and a Gardner Impact of at least about 175 inch-pounds comprising: (i) isotactic polypropylene; and (ii) a copolymer of ethylene and l-butene, said copolymer (a) having a density of about 0.87 to about 0.90 gram per cubic centimeter and a crystallinity in the range of about 20 to about 35 percent by weight based on the weight of the copolymer and (b) being present in the composition in the range of about 20 to about 50 percent by weight based on the weight of the polypropylene. D-15621

568801

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