Detergent compositions comprising an encapsulated percarbonate compound

• US 6,787,514 B2
• Filed: 10/10/2002
• Issued: 09/07/2004
• Est. Priority Date: 01/10/1997
• Status: Expired due to Term

• Current Assignee: Gemak Trust
• Original Assignee: Gemak Trust
• Inventors: Hinton, Gerald Thomas
• Primary Examiner(s): Mruk, Brian P.
• Application Number:
  US10/268,324
• Publication Number:
  US 20030040453A1
• Time in Patent Office: 698 Days
• Field of Search: 510/296, 510/302, 510/309, 510/349, 510/375, 510/439, 510/441, 510/446, 510/509
• US Class Current: 510/439
• CPC Class Codes: C11D 17/0039 Coated compositions or coated components in the compositions, (micro)capsules
• CPC Class Codes: C11D 17/0047 Detergents in the form of bars or tablets
• CPC Class Codes: C11D 3/046 Salts
• CPC Class Codes: C11D 3/225 etherified, e.g. CMC
• CPC Class Codes: C11D 3/3942 Inorganic per-compounds C11D3/3902 takes precedence

Abstract

The invention relates to laundering and dishwashing products which can be incorporated in a single compartment water soluble film sachet, the formulation comprising a granulated percarbonate compound which has been mixed with an encapsulating blend comprising sulfate, carboxy methyl cellulose and nonionic surfactant wherein the detergent product does not include zeolites and perborates.

Claims

1. A granulated percarbonate compound for use in detergent products storable in PVA film packaging, the compound comprising a percarbonate and a blend encapsulating the percarbonate, wherein the blend comprises a sulfate, carboxymethyl cellulose and a nonionic surfactant.

2. A percarbonate compound as claimed in claim 1 wherein the percarbonate is sodium percarbonate.

3. A percarbonate compound as claimed in claim 1 wherein the sulfate is sodium sulfate.

4. A percarbonate compound as claimed in claim 2 wherein the sulfate is sodium sulfate.

5. A percarbonate as claimed in claim 1 wherein the surfactant is alkyl (C₆ to C₁₂) aryl polyglycol ethoxylate.

6. A percarbonate as claimed in claim 2 wherein the surfactant is alkyl (C₆ to C₁₂) aryl polyglycol ethoxylate.

7. A percarbonate as claimed in claim 3 wherein the surfactant is alkyl (C₆ to C₁₂) aryl polyglycol ethoxylate.

8. A detergent product comprising a granulated percarbonate compound, the compound comprising a percarbonate and a blend encapsulating the percarbonate, wherein the blend comprises sulfate, carboxymethyl cellulose and a nonionic surfactant, wherein the percarbonate compound is enclosed by PVA film packaging.