A - Human Necessities – 01 – N
Patent
A - Human Necessities
01
N
A01N 55/02 (2006.01) A01N 43/40 (2006.01) A61K 31/44 (2006.01) B01J 13/00 (2006.01) C07D 213/89 (2006.01) C07F 1/08 (2006.01)
Patent
CA 2291056
The present invention relates to non-spherical and/or non-platelet pyrithione particles. Also disclosed is a method for producing non-spherical and/or non- platelet particles of pyrithione salts, comprising reacting pyrithione or a water-soluble salt of pyrithione and a water-soluble polyvalent metal salt in the presence of a dispersant at a temperature from about 20 ~C to about 60 ~C to produce non-spherical and/or non-platelet particles of pyrithione salts. The present invention further relates to particles made by the above methods and products, such as shampoos, soaps, and skin-care medicaments made using these particles.
Cette invention se rapporte à des particules de pyrithione non sphériques et/ou non lamellaires, ainsi qu'à un procédé pour produire des particules non sphériques et/ou non lamellaires de sels de pyrithione, consistant à faire réagir de la pyrithione ou un sel hydrosoluble de pyrithione et un sel de métal polyvalent hydrosoluble en présence d'un dispersant à une température comprise entre 20 ·C environ et 60 ·C environ afin de produire des particules non sphériques et/ou non lamellaires de sels de pyrithione. Cette invention se rapporte en outre à des particules obtenues par les procédés décrits ci-dessus, ainsi qu'à des produits, tels que shampoings, savons et médicaments pour les soins de la peau, fabriqués à partir de ces particules.
Beaty David C.
Jardas John J.
Kaufman Charles W.
Mohseni Saeed M.
Polson George
Arch Chemicals Inc.
Swabey Ogilvy Renault
LandOfFree
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