C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 3/12 (2006.01) B01F 7/02 (2006.01) B01F 7/08 (2006.01) B29B 7/94 (2006.01) B29B 9/16 (2006.01) B01F 3/12 (2006.01) B01F 7/00 (2006.01) B01F 13/10 (2006.01)
Patent
CA 2361622
To provide superior anti-agglomeration, or tackiness-reducing, properties, one aspect of the invention is directed to coated polymeric particles, with each of the coated particles comprised of a polymeric substrate particle and a block-reducing coating on the surface of the substrate particle. The coating includes polymeric coating particles which advantageously may be in the form of a micro-fine powder. Also disclosed herein is a process for applying the polymeric coating particles onto the polymeric substrate particles, as well as equipment which is especially useful in producing the coated polymeric particles.
L'invention vise à obtenir des propriétés supérieures de résistance à l'agglomération ou de réduction de collage et concerne dans l'un des aspects des particules polymères enrobées, chacune des particules enrobées comprenant une particule de substrat et un enrobage résistant au collage à la surface de cette particule de substrat. L'enrobage comprend des particules d'enrobage polymères qui peuvent se présenter avantageusement sous la forme d'une poudre extrêmement fine. L'invention concerne aussi un procédé pour appliquer des particules d'enrobage polymères aux particules polymères de substrat ainsi qu'un équipement spécialement utile dans la production de particules polymères enrobées.
Bostrom David O.
Jackson Paul H.
Shumake William K.
Equistar Chemicals Lp
Osler Hoskin & Harcourt Llp
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