Laundry composition

• US 8,349,789 B2
• Filed: 06/08/2009
• Issued: 01/08/2013
• Est. Priority Date: 06/20/2008
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Lant, Neil Joseph
• Primary Examiner(s): Jagannathan, Vasu
• Assistant Examiner(s): KAUCHER, MARK S
• Application Number:
  US12/480,000
• Publication Number:
  US 20090318326A1
• Time in Patent Office: 1,310 Days
• Field of Search: 435/209, 435/263, 435/264, 510/320, 510/321, 510/393, 510/276, 510/470, 510/473, 510/471, 424/70.13, 106/31.36, 813/7, 527/302, 527/300
• US Class Current: 510/473
• CPC Class Codes: C11D 3/222 Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
• CPC Class Codes: C11D 3/225 etherified, e.g. CMC

Abstract

Laundry treatment composition comprising a substituted cellulose having a degree of substitution, DS, of from 0.01 to 0.99 and a specific degree of blockiness, DB, such that either DS+DB is of at least 1 or DB+2DS−DS² is of at least 1.20, and a laundry adjunct ingredient.

Claims

1. A composition being a laundry treatment composition or component thereof, comprising:

a substituted cellulose having a degree of substitution, DS, between 0.55 to 0.80,

a degree of blockiness, DB, of at least 0.35 and

a DS+DB, of from 1.05 to 2.00 and

a laundry adjunct ingredient.

2. A composition according to claim 1, wherein the substituted cellulose has a 2% by weight viscosity in water of at least 100 mPa·

s.

3. A composition according to claim 1, wherein the substituted cellulose comprises at least one glucose unit of its backbone which is substituted with a substituent selected from the group consisting of branched, linear or cyclic, substituted or not substituted, saturated or unsaturated alkyl, amine (primary, secondary, tertiary), ammonium salt, amide, urethane, alcohol, carboxylic acid, tosylate, sulfonate, sulfate, nitrate, phosphate, silicone and mixtures thereof.

4. A composition according to claim 1, wherein the substituted cellulose is carboxymethylcellulose.

5. A composition according to claim 1, wherein the composition further comprise an enzyme having endo-β

-1,4-glucanase activity.

6. A composition according to any one of the preceding claims, comprising at least 1% of substituted cellulose.

7. A composition according to claim 1, comprising from 0 to 20% of phosphate builder and/or silicate builder and/or zeolite builder.

8. A method of cleaning and/or softening fabric, comprising the step of treating the fabric with a laundry composition comprising a substituted cellulose having a degree of substitution, DS, of between 0.55 and 0.80 and a degree of blockiness, DB, of at least 0.35 and a DS+DB, of from 1.05 to 2.00.