B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
B01F 3/12 (2006.01) B01J 13/02 (2006.01) C11D 3/48 (2006.01)
Patent
CA 2363983
A method for producing a suspension, emulsion or dispersion of de-agglomerated particles (advantageously submicron-sized particles) of pyrithione salts comprising contacting agglomerated pyrithione salt particles with a de- agglomerating agent to produce the desired de-agglomerated pyrithione salt particles. Also disclosed is a method for making de-agglomerated submicron- sized particles of pyrithione salts comprising a heating step. Also disclosed are the particles made by the above methods and compositions comprising the particles and a base medium.
L'invention concerne un procédé de production d'une suspension, d'une émulsion ou d'une dispersion de particules désagglomérées (avantageusement des particules de dimensions inférieures au micron) de sels de pyrithione, qui comporte une étape de mise en contact des particules de sel de pyrithione agglomérées avec un agent désagglomérant pour produire les particules de sel de pyrithione désagglomérées voulues. L'invention concerne également un procédé de fabrication de particules de sels de pyrithione de dimensions inférieures au micron, qui comporte une étape de chauffage. L'invention concerne également les particules fabriquées à l'aide des procédés mentionnés, et des compositions contenant les particules et un milieu de base.
Beaty David C.
Jardas John J.
Kaufman Charles W.
Mohseni Saeed M.
Polson George
Arch Chemicals Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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