Expanded perborate salt, use, and method of production

A - Human Necessities – 61 – K

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Details

A61K 9/20 (2006.01) A61K 9/14 (2006.01) A61K 9/16 (2006.01) A61K 9/46 (2006.01) C11D 3/00 (2006.01) C11D 3/39 (2006.01)

Patent

CA 2428124

An effervescent compound is disclosed which includes a liquid ingredient, an effervescent system and optionally a solvent. The solvent may be either hydrophilic or hydrophilic, and may have low solubility with effervescent ingredients. The solvent may include an alcohol, a glycol or a glycol ether, for example, but not limited to, 2-butoxyethanol. The effervescent system used in the effervescent compound may be, for example, but not limited to, an expanded perborate salt, anhydrous, or a mixture of an expanded perborate salt, anhydrous, and oxoborate or an acid and one or more of sodium bicarbonate, sodium carbonate, potassium bicarbonate and potassium carbonate. The effervescent compound may further include any one, or all, or any combination of the following ingredients: surfactants, bleaching compositions, antiredeposition agents, binders, lubricants, colors, fragrances, corrosion inhibitors, disinfectants, pesticides, fertilizers and/or optical brighteners. Furter disclosed is a method of producing the expanded perbo\rate salt, anhydrous. Also disclosed is a method for making an effervescent compound, including the steps of providing a solvent, providing an effervescent system in powder form, and mixing the solvent with the effervescent system, thereby producing a free-flowing effervescent compound. The method disclosed may also include the steps of compressing the effervescent compound, and then forming either granules or a tablet.

L'invention concerne un composé effervescent comportant un ingrédient liquide, un système effervescent et, de manière facultative, un solvant. Le solvant peut être soit hydrophile soit hydrophobe, et il peut présenter une faible solubilité avec des ingrédients effervescents. Le solvant peut comporter un alcool, un glycol ou un éther de glycol, du 2-butoxyéthanol, par exemple, ce qui n'est pas restrictif. Le système effervescent utilisé dans le composé effervescent peut être, exemple non restrictif, un sel de perborate expansé, anhydre ou un mélange d'un sel de perborate expansé, anhydre et un oxoborate ou un acide et un ou plusieurs des sels suivants : bicarbonate de sodium, carbonate de sodium, bicarbonate de potassium et carbonate de potassium. Le composé effervescent peut également comporter une ou toutes ou n'importe quelle combinaison des ingrédients suivants : agents de surface, compositions de blanchiment, agents anti-redéposition, liants, lubrifiants, colorants, parfums, inhibiteurs de corrosion, désinfectants, pesticides, engrais et/ou azurants optiques. L'invention concerne également un procédé de production du sel de perborate expansé anhydre. L'invention concerne encore un procédé de fabrication d'un composé effervescent, comprenant les étapes consistant à se munir d'un solvant, à se munir d'un système effervescent sous forme de poudre et à mélanger le solvant avec le système effervescent, produisant ainsi un composé effervescent fluide. Le procédé décrit peut également comprendre les étapes consistant à comprimer le composé effervescent et à former ensuite soit des granulés soit un comprimé.

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