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US 2013/0200304 A1Published application
Active oxygen source
OwnerMona Ezzelarab, Anna Fureby +2inventors
InventorsMona Ezzelarab, Anna Fureby, Anders Larsson, Tove Åberg
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OwnerMona Ezzelarab, Anna Fureby +2inventors
InventorsMona Ezzelarab, Anna Fureby, Anders Larsson, Tove Åberg
Estimating the term…
The present invention relates to a solid active oxygen source coated with a composition comprising at least one polymer, wherein the composition on the oxygen source has been subjected to heating. Said oxygen source is chosen from percarbonates and said polymer is a hydrophobic alkyl cellulose, preferably ethyl cellulose. In a further aspect the present invention relates to a process for the production of a coated active oxygen source, wherein said oxygen source is in solid state and is formed into or in the shape of a granule, and wherein the coating is applied onto the oxygen source and subjected to heating by an application-drying process.
A solid active oxygen source coated with a composition comprising at least one polymer, characterized in that said oxygen source is chosen from sodium or potassium salts of percarbonates and said polymer is chosen from hydrophobic alkyl cellulose and wherein the composition on the oxygen source has been subjected to heating at a temperature higher than the glass transition temperature or at a temperature at least 10° C. above the minimum film formation temperature.
Dependencies are inferred from the claim text.