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Document Number
US Patent 6486116
Issued Date
November 26, 2002
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Abstract
A detergent composition comprising a granulated percarbonate and a blend which encapsulates the percarbonate is describe. The blend comprises a sulphate, carboxymethyl cellulose and a nonionic surfactant. The detergent composition comprises sodium metasilicate and does not include a zeolite, a perborate or a phosphate. The composition is capable of being stored in a water-soluble PVA film packaging for at least nine months and wherein the composition comprises between 1% and 15% percarbonate. The composition can include a phosphate substitute such as a polyacrylate. The composition can be compressed into a tablet format and used as a laundering product.
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Number of Claims:
13
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Published
November 26, 2002
Application Number
09/743,461
Filed
April 6, 2001
US Classification
510/441   510/296 510/298 510/375 510/446
Int'l Classification
C11D   3/22   (20060101)   C11D   17/00   (20060101)   C11D   3/39   (20060101)   C11D   1/72   (20060101)   C11D   1/66   (20060101)  
Assistant Examiner
Attorney/Law Firm
Priority Data
Jul 10, 1998 [GB] 9814968
USPTO Field of Search
510/441   510/446   510/375   510/296   510/298  
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