Method of producing low-dust granules from polymer additives

Details Method of producing low-dust granules from polymer additives Method of producing low-dust granules from polymer additives

C - Chemistry, Metallurgy

08

K

C08K 5/13 (2006.01) B01J 2/00 (2006.01) B01J 2/22 (2006.01) B01J 2/24 (2006.01) C08K 3/00 (2006.01) C08K 5/00 (2006.01) C08K 7/16 (2006.01) C08K 13/02 (2006.01)

Patent

CA 2553012

The invention relates to a technically advantageous method of producing low- dust granules of polymer additives or polymer additive mixtures. The granule- forming polymer additives are mixed together, the mixture is converted into a workable mass and pressed through an orifice. The pre-shaped strand-like extruded mass is cooled and, while still in a workable state, formed into granules by rolling, impressing, cooling and comminuting.

L'invention concerne un procédé techniquement avantageux de production de granules quasi exempts de poussière à partir d'additifs polymères ou de mélanges d'additifs polymères. Ce procédé consiste à mélanger les additifs polymères, à transformer le mélange obtenu en une masse malléable et à comprimer la masse obtenue à travers un orifice. La masse extrudée, en forme de fil préformé, est refroidie et, alors qu'elle est encore malléable, transformée en granules par laminage, impression, refroidissement et fragmentation.

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