Expanded polypropylene films

Details Expanded polypropylene films Expanded polypropylene films

C - Chemistry, Metallurgy

08

J

18/637, 403/78

C08J 9/06 (2006.01) C08J 5/18 (2006.01) C08J 9/00 (2006.01) C08L 23/12 (2006.01)

Patent

CA 1255848

ABSTRACT OF THE DISCLOSURE Disclosed are films made of expanded polypropylene, which have a uniform specific gravity d of from about 4.25 x 10-6 to about 6.50 x 10- Newton/mm3, a crystallization temperature of from about 115°C to about 135°C and an elastic modulus Me expressed in Newton/mm3 such that the ratio Me:d is from about 1.6 x 108 to about 2.0 x 108 mm.

492260

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