Low glow olefin

C - Chemistry – Metallurgy – 08 – K

Patent

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Details

C08K 5/20 (2006.01) C08K 3/26 (2006.01) C08K 3/34 (2006.01) C08K 3/40 (2006.01) C08K 5/09 (2006.01) C08L 23/00 (2006.01)

Patent

CA 2529386

The present invention provides low specular gloss polymeric compositions that exhibit good mechanical strength and methods of forming the same. According to the method of the invention, a masterbatch composition that includes fiberglass dispersed in a polypropylene homopolymer or copolymer is melt-mixed with a copolymer or homopolymer of polypropylene and a filler such as talc or calcium carbonate to form a polymer blend that exhibits low specular gloss and good mechanical properties.

La présente invention concerne des compositions polymères à faible coefficient de réfraction spéculaire qui présente une bonne résistance mécanique et, des procédés de formation de celle-ci. Selon le procédé de cette invention, une composition principale qui comprend de la fibre de verre dispersée dans un homopolymère ou un copolymère de polypropylène est mélangé en fusion avec un copolymère ou un homopolymère de propylène et une charge telle que du talc ou du carbonate de calcium de façon à former un mélange polymère qui présente un faible coefficient de réfraction spéculaire et de bonnes propriétés mécaniques.

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