Polypropylene composition and film thereof

Details Polypropylene composition and film thereof Polypropylene composition and film thereof

1993-06-22

1994-08-23

Seccuro, Jr., Carman J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

524528, C08L 2310, C08L 2304

Patent

active

053408780

ABSTRACT:
A polypropylene composition comprising 100 parts by weight of a crystalline propylene polymer having a melt flow rate of at least 3.0 g/10 minutes and a molecular weight distribution of less than 5.0 and from 0.01 to less than 4.0 parts by weight of a crystalline ethylene polymer having a melt flow rate of from 0.5 to 300 g/10 minutes, a density of at least 0.910 g/cm.sup.3, and a crystallization temperature of at least 85.degree. C. and which is at least 1.degree. C. higher than the crystallization temperature of the crystalline propylene polymer.

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patent: 3647922 (1972-03-01), Seugering et al.
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patent: 4487871 (1984-12-01), Ishibashi et al.
patent: 4508786 (1985-04-01), Ishibashi et al.
patent: 4514534 (1985-04-01), Di Nardo
patent: 5221715 (1993-06-01), Kagawa et al.

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