BLEACHING ACTIVATOR AND DETERGENT COMPOSITION COMPRISING THE SAME

• US 20090022645A1
• Filed: 01/11/2006
• Published: 01/22/2009
• Est. Priority Date: 01/12/2005
• Status: Abandoned Application

• Current Assignee: Nippon Shokubai Company Limited
• Original Assignee: Nippon Shokubai Company Limited
• Inventors: Sumida, Yasutaka, Yonehara, Koji
• Application Number:
  US11/813,748
• Publication Number:
  US 20090022645A1
• Time in Patent Office: Days
• US Class Current: 423/307
• CPC Class Codes: C11D 3/3932 Inorganic compounds or complexes
• CPC Class Codes: D06L 4/12 combined with specific additives
• CPC Class Codes: D06L 4/13 using inorganic agents

Abstract

To provide a bleaching activator capable of improving bleaching performance of a peroxy compound and the like, and a detergent composition comprising such a compound. A bleaching activator comprising Keggin heteropolyoxometalate anions, wherein the Keggin heteropolyoxometalate anions comprise a Keggin heteropolyoxometalate anion represented by the following formula (1):

[XM_a(H₂O)_bO_c]^d−  (1)

(in the formula, X representing a silicon atom or a phosphorus atom; M being the same or different and representing a tungsten atom or a molybdenum atom; a representing an integer of 9 to 11; b representing a positive number of 0 to 6; c representing a positive number of 28 to 39; d representing a valency and being a positive number).

Claims

1. A bleaching activator comprising Keggin heteropolyoxometalate anions, wherein the Keggin heteropolyoxometalate anions comprise a Keggin heteropolyoxometalate anion represented by the following formula (1):

[XM_a(H₂O)_bO_c]^d−

 

 

(1)

(in the formula, X representing a silicon atom or a phosphorus atom;

M being the same or different and representing a tungsten atom or a molybdenum atom;

a representing an integer of 9 to 11;

b representing a positive number of 0 to 6;

c representing a positive number of 28 to 39;

d representing a valency and being a positive number).

2. The bleaching agent according to claim 1, wherein the Keggin heteropolyoxometalate anions have two or more deficient structure sites.

3. The bleaching activator according to claim 1, wherein the Keggin heteropolyoxometalate anions have three deficient structure sites and is represented by the following formula (2):

[XM₉O₃₄]^e−

 

 

(2)

(in the formula, X representing a silicon atom or a phosphorus atom;

M being the same or different and representing a tungsten atom or a molybdenum atom; and

e representing a valency and being a positive number.

4. A detergent composition comprising the bleaching activator of claim 1.

5. The bleaching activator according to claim 2, wherein the Keggin heteropolyoxometalate anions have three deficient structure sites and is represented by the following formula (2):

[XM₉O₃₄]^e−

 

 

(2)

(in the formula, X representing a silicon atom or a phosphorus atom;

M being the same or different and representing a tungsten atom or a molybdenum atom; and

e representing a valency and being a positive number.

6. A detergent composition comprising the bleaching activator of claim 2.

7. A detergent composition comprising the bleaching activator of claim 3.

8. A detergent composition comprising the bleaching activator of claim 5.