Composition comprising substituted cellulosic polymer and amylase

• US 8,580,721 B2
• Filed: 03/01/2011
• Issued: 11/12/2013
• Est. Priority Date: 03/01/2010
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Meek, Michelle, Souter, Philip Frank, Lant, Neil Joseph, Brooker, Alan Thomas, Somerville Roberts, Nigel Patrick
• Primary Examiner(s): PAK, YONG D
• Application Number:
  US13/037,659
• Publication Number:
  US 20110212873A1
• Time in Patent Office: 987 Days
• Field of Search: None
• US Class Current: 510/114
• CPC Class Codes: C11D 17/06 Powder; Flakes; Free-flowing mixtures; Sheets
• CPC Class Codes: C11D 3/38609 Protease or amylase in solid compositions only
• CPC Class Codes: C11D 3/3905 Bleach activators or bleach catalysts
• CPC Class Codes: C11D 3/392 Heterocyclic compounds, e.g. cyclic imides or lactames
• CPC Class Codes: C11D 3/3942 Inorganic per-compounds C11D3/3902 takes precedence
• CPC Class Codes: C11D 3/3945 Organic per-compounds C11D3/3902 takes precedence

Abstract

A solid particulate laundry detergent composition including: (a) substituted cellulosic polymer including carboxymethyl substituent groups, and having a degree of substitution (DS) of at least 0.55, and having a degree of blockiness (DB) of at least 0.35, and having a DS+DB is in the range of from 1.05 to 2.00; (b) amylase with greater than 90% identity to the AA560 alpha amylase endogenous to Bacillus sp. DSM 12649 and including: (i) mutations at one or more of positions 9, 149, 182, 186, 202, 257, 295, 299, 323, 339 and 345; and (ii) mutations at four or more of positions 118, 183, 184, 195, 320 and 458; and (c) laundry detergent ingredients.

Claims

1. A solid particulate laundry detergent composition comprising:

(a) substituted cellulosic polymer comprising carboxymethyl substituent groups, and having a degree of substitution (DS) of at least 0.55, and having a degree of blockiness (DB) of at least 0.35, and having a DS+DB is in the range of from 1.05 to 2.00;

(b) amylase with greater than 90% identity to the AA560 alpha amylase endogenous to Bacillus sp. DSM 12649 having Sequence ID NO;

1, and comprising;

(i) mutations at one or more of positions 9, 149. 182, 186, 202, 257, 295, 299, 323, 339 and 345; and

(ii) mutations at four or more of positions 118, 183, 184, 195, 320 and 458; and

(c) laundry detergent ingredients.

2. A composition according to claim 1, wherein upon dilution in de-ionized water to a concentration of 1 wt % at 20°

C., the composition has a pH of from 9 to 13.

3. A composition according to claim 1, wherein the amylase comprises mutations at the following positions:

R118K, D183*, G184*, N195F, R320K and R458K.

4. A composition according to claim 1, wherein the composition comprises:

(a) anionic detersive surfactant;

(b) from 0 wt % to less than 5wt % zeolite builder;

(c) from 0 wt % to less than 5wt % phosphate builder; and

(d) optionally, from 0 wt % to 10 wt % silicate salt.

5. A composition according to claim 1, wherein the composition comprises XYG1006 glycosyl hydrolase from Paenibacillus polyxyma and variants thereof.

6. A composition according to claim 1, wherein the composition comprises co-bleach particle comprising a bleach activator, a source of hydrogen peroxide and optionally a bleach catalyst.

7. A composition according to claim 1, wherein the composition comprises oxaziridinium-based bleach catalyst having the formula:

8. A composition according to claim 1, wherein the composition comprises a polyethylene glycol polymer comprising a polyethylene glycol backbone and polyvinyl acetate side chains, wherein the average molecular weight of the polyethylene glycol backbone is in the range of from 4,000 Da to 8,000 Da, wherein the molecular weight ratio of the polyethylene glycol backbone to the polyvinyl acetate side chains is in the range of from 1:

1.2 to 1;

2, and wherein the average number of graft sites per ethylene oxide units is in the range of from 0.2 to 0.4.

9. A composition according to claim 1, wherein the composition comprises hueing agent.

10. A composition according to claim 1, wherein the composition comprises perfume microcapsule, wherein the perfume is encapsulated by a shell comprising melamine formaldehyde.