Mixing particulate additives into thermoplastics polymers

Details Mixing particulate additives into thermoplastics polymers Mixing particulate additives into thermoplastics polymers

C - Chemistry, Metallurgy

08

J

400/9209

C08J 3/20 (2006.01) B29B 7/88 (2006.01) C08L 23/04 (2006.01) C08L 31/04 (2006.01)

Patent

CA 1077183

ABSTRACT OF THE DISCLOSURE: Particulate additives such as carbon black and thermoplastics in a powdered form are mixed by first charging them to a rotary blade mixer and then charging the mixture obtained to an internal mixer. In this way the mixing cycle Or the internal mixer is drastically shortened with no adverse effect on the quality of the blend obtained. The process also permits a wider range of polymers to be mixed in an internal mixer and avoids the generation of steam and consequent loss of additive normally associated with carton black mixing operations carried out in Banbury mixers.

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