Storage-stable encapsulated sodium percarbonate and process for its production
May 20, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3161602 4090973 Encapsulated bleaches and methods for their preparation Stabilized particulate peroxygen compounds Encapsulated bleaches and methods for their preparation Process for encapsulating particles with at least two coating layers having different melting points Wax encapsulated actives and emulsion process for their production Foam regulators suitable for use in detergents and cleaning preparations Patent #: 5002695 InventorsAssigneeApplicationNo. 199289 filed on 05/20/1994US Classes:252/186.27, Inorganic peroxide423/415.2, Percarbonate compound427/213.36, Solid-walled microcapsule formed from preformed synthetic polymer427/220, Organic coating427/240, CENTRIFUGAL FORCE UTILIZED428/402.24, Microcapsule with solid core (includes liposome)510/309, Peroxy component510/375, The bleach or oxidant component contains peroxy510/441, Coated or encapsulated solid material, or process of preparing516/131The compound contains plural -C(=O)NHH where substitution may be made for the hydrogenExaminersPrimary: Lovering, Richard D.Attorney, Agent or FirmForeign Patent References
International ClassesC01B 015/10B01J 013/04 B05D 007/00 Foreign Application Priority Data1991-09-03 DEAbstractStorage stability of finely divided sodium percarbonate is improved by melt-coating of water-insoluble encapsulation agents. |
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