Detergent compositions

• US 6,730,656 B2
• Filed: 03/12/2003
• Issued: 05/04/2004
• Est. Priority Date: 09/19/2000
• Status: Expired due to Fees

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Hartshorn, Richard Timothy, Ingram, Barry Thomas, Main, Alison Lesley, Letzelter, Nathalie Sophie
• Primary Examiner(s): BOYER, CHARLES I
• Application Number:
  US10/386,997
• Publication Number:
  US 20040005993A1
• Time in Patent Office: 419 Days
• Field of Search: 510/507, 510/276, 510/287, 510/334, 510/444, 510/445, 510/470, 510/471, 510/485, 510/515
• US Class Current: 510/507
• CPC Class Codes: C11D 3/001 Softening compositions
• CPC Class Codes: C11D 3/126 in solid compositions
• CPC Class Codes: C11D 3/226 esterified
• CPC Class Codes: C11D 3/3776 Heterocyclic compounds, e.g. lactam

Abstract

A solid detergent composition comprising a clay system, said clay system comprises a hectorite clay and a dioctahedral smectite clay, wherein the weight ratio of said hectorite clay to said dioctahedral smectite clay is less than 1:1. The two clay types may be present in a solid detergent composition in the form of an agglomerate.

Claims

1. A solid detergent composition comprising a hectorite clay, a dioctahedral smectite clay, and from 0.01 to 50% by weight of a hydrophobically modified cellulosic based polymer, said hydrophobically modified cellulosic based polymer having a mean average molecular weight of from 50,000 daltons to 2,000,000 daltons, and wherein the weight ratio of said hectorite clay to said dioctahedral smectite clay is less than 1:

1.

2. A composition according to claim 1, whereby said hectorite clay has the general formula

3. A composition according to claim 1, whereby said dioctahedral smectite clay is a montmorillonite clay, said montmorillonite clay having the general formula

4. A composition according to claim 1, whereby said hectorite clay has an aspect ratio of greater than 3:

1.

5. A composition according to claim 1, whereby said hectorite clay has a volume weight mean particle size of from 5 micrometers to 20 micrometers, and/or said dioctahedral clay has a volume weight mean particle size of more than 20 micrometers.

6. A composition according to claim 1, whereby said, composition comprises (by weight) an amount of clay of no more than 10%.

7. A composition according to claim 1, whereby said composition comprises a flocculating agent.

8. A composition according to claim 1, whereby said composition comprises a cyclic amine based polymer.

9. A composition according to claim 1, whereby said hectorite clay and said dioctahedral smectite clay are present in said composition in the form of agglomerate particles.