Polypropylene resin compositions

Details Polypropylene resin compositions Polypropylene resin compositions

1988-10-05

1990-05-22

Seccuro, 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...

525216, 525192, 525196, C08L 2312, C08L 4500, C08L 2508

Patent

active

049278851

ABSTRACT:
Polypropylene resin compositions suitable for producing polypropylene films with excellent properties are disclosed. The compositions can provide polypropylene films having very excellent transparency, excellent heat-sealability and good anti-blocking property. Such characteristics are essential requirements for packing films. The polypropylene resin compositions comprise 70 to 99 parts by weight of polypropylene and 1 to 30 parts by weight of a specific hydrogenated petroleum resin. The hydrogenated petroleum resin can easily be prepared industrially from valueless by-products of oil and petrochemical industries, such as C.sub.5 fraction and C.sub.9 fraction by-produced in naphtha steam cracking process.

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