Process for producing polyolefin composition and process for...

Details Process for producing polyolefin composition and process for... Process for producing polyolefin composition and process for...

C - Chemistry, Metallurgy

08

J

C08J 3/20 (2006.01) C08K 3/36 (2006.01)

Patent

CA 2158825

Polyolefin particles having an average particle diameter of 50-500 µm and containing 10% by weight or more of fine particles having a diameter of 100 µm or less are mixed with 3.0-25.0% by weight of an inorganic fine powder having an average particle diameter of 1.0-40 µm and an apparent density of 0.25- 0.50 g/cm3, the resulting mixture is melt-kneaded with a kneader, whereby a masterbatch containing a high concent of the inorganic fine powder can be obtained which is useful for producing polyolefin films in which the inorganic fine powder (II) is well dispersed and which have good film properties, including appearance and scratch resistance, while retaining desirable characteristic properties inherent to polyolefin films.

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