US5244594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bleach activation multinuclear manganese-based coordination complexes
Assignee: Lever Brothers Co
•
Filing: 1991-05-21
•
Granted: 1993-09-14
•
Expires: 2011-05-21
Abstract
Abstract Novel bleach and oxidation catalysts, a method of bleaching substrates using these catalysts and bleaching (detergent) compositions containing the catalysts are reported. The catalysts are a manganese-based co-ordination complex of the general formula: [L.sub.n Mn.sub.m X.sub.p ].sup.z Y.sub.q wherein Mn is manganese in the IV-oxidation state; n and m are independent integers from 2-8; X represents a co-ordination or bridging species; p is an integer from 0-32; Y is a counter-ion, the type of which is dependent on the charge z of the complex which can be positive, zero or negative; q=z/[charge Y]; and L is a ligand which is an organic molecule containing a number of hetero-atoms selected from N, P, O, and S, which co-ordinates via all or some of its hetero-atoms and/or carbon atoms to the Mn.sup.(IV) -center(s), which latter are anti-ferromagnetically coupled.
Inventors
- 👤 Thomas L. F. Favre
- 👤 Ronald Hage
- 👤 Karin Van der Helm-Rademaker
- 👤 Jean H. Koek
- 👤 Rudolf J. Martens
- 👤 Ton Swarthoff
- 👤 Marten R. P. van Vliet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:52
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/395; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3932
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
150 words
A bleaching composition comprising a peroxy compound present in an effective amount to accomplish bleaching or cleaning and a catalyst present in an effective amount to activate the peroxy compound, the catalyst being a manganese-based coordination complex with a general formula: [L.sub.n Mn.sub.m X.sub.p ].sup.z Y.sub.q (A) wherein Mn is manganese in the IV-oxidation state; n and m are independent integers from 2 to 8; X represents a coordination or bridging species; p is an integer form 0 to 32; Y is a counterion, the type of which is dependent upon the charge z of the complex; q=z/[charge Y]; and L is a ligand which is an organic molecule containing a number of hetero-atoms selected from the group consisting of N, P, O and S which coordinates via at least some of said hetero-atoms to at least one Mn.sup.(IV) -center, and wherein at least two manganese atoms are anti-ferromagnetically coupled.
Claim 2
Dependent Claim
150 words
A bleaching composition comprising a peroxy compound present in an effective amount to accomplish bleaching or cleaning and a catalyst present in an effective amount to activate the peroxy compound, the catalyst being a manganese-based coordination complex with a general formula: [L.sub.n Mn.sub.m X.sub.p ].sup.z Y.sub.q (A) wherein Mn is manganese in the IV-oxidation state; n and m are independent integers from 2 to 8; X represents a coordination or bridging species; p is an integer form 0 to 32; Y is a counterion, the type of which is dependent upon the charge z of the complex; q=z/[charge Y]; and L is a ligand which is an organic molecule containing a number of hetero-atoms selected from the group consisting of N, P, O and S which coordinates via at least some of said hetero-atoms to at least one Mn.sup.(IV) -center, and wherein at least two manganese atoms are anti-ferromagnetically coupled.
Claim 3
Dependent Claim
18 words
A composition according to claim 1, further comprising from about 1% to 50% by weight of a surfactant.
Claim 4
Dependent Claim
22 words
A composition according to claim 1, wherein the catalyst is [Mn IV 2 (μ-O) 3 (Me-TACN) 2 ](PF 6 ) 2 .
Claim 5
Dependent Claim
22 words
A composition according to claim 1, wherein the catalyst is [Mn IV 2 (μ-O) 3 (Me/Me-TACN) 2 ](PF 6 ) 2 .
Claim 6
Dependent Claim
39 words
A composition according to claim 1, which comprise said peroxy compound at a level of from 2 to 30% by weight and said catalyst at a level corresponding to a manganese content of from 0.0005% to 1.0% by weight.
Claim 7
Dependent Claim
17 words
A composition according to claim 5, wherein said manganese content is from 0.001% to 0.5% by weight.
Claim 8
Dependent Claim
32 words
A composition according to claim 1, wherein said peroxy compound is selected from the group consisting of hydrogen peroxide, hydrogen peroxide-liberating compounds, hydrogen peroxide-generating systems, peroxyacids and their salts, and mixtures thereof.
Claim 9
Dependent Claim
12 words
A composition according to claim 7, wherein the peroxyacid is N,N-phthaloylaminoperoxycaproic acid.
Claim 10
Dependent Claim
25 words
A composition according to claim 7, which further comprises an enzyme selected form the group consisting of proteases, cellulases, lipases, amylases, oxidases and mixtures thereof.
Claim 11
Dependent Claim
20 words
A composition according to claim 7, which further comprises a surface-active material in an amount up to 50% by weight.
Claim 12
Dependent Claim
22 words
A composition according to claim 10, which further comprises a detergency builder in an amount of from 5 to 80% by weight.
Claim 13
Independent Claim
161 words
A method for bleaching or cleaning of a substrate comprising contacting the substrate with a peroxy compound present in an effective amount to accomplish the bleaching or cleaning and a catalyst present in an effective amount to activate the peroxy compound, the catalyst being a manganese-based coordination complex with a general formula: [L.sub.n Mn.sub.m X.sub.p ].sup.z Y.sub.q (A) wherein Mn is manganese in the IV-oxidation state; n and m are independent integers from 2 to 8; X represents a coordination or bridging species; p is an integer from 0 to 32; Y is a counterion, the type of which is dependent upon the charge z of the complex; q=z/[charge Y]; and L is a ligand which is an organic molecule containing a number of hetero-atoms selected from the group consisting of N, P, O and S which coordinates via at least some of said hetero-atoms to at least one Mn.sup.(IV) -center, and wherein at least two manganese atoms are anti-ferromagnetically coupled.
Claim 14
Independent Claim
161 words
A method for bleaching or cleaning of a substrate comprising contacting the substrate with a peroxy compound present in an effective amount to accomplish the bleaching or cleaning and a catalyst present in an effective amount to activate the peroxy compound, the catalyst being a manganese-based coordination complex with a general formula: [L.sub.n Mn.sub.m X.sub.p ].sup.z Y.sub.q (A) wherein Mn is manganese in the IV-oxidation state; n and m are independent integers from 2 to 8; X represents a coordination or bridging species; p is an integer from 0 to 32; Y is a counterion, the type of which is dependent upon the charge z of the complex; q=z/[charge Y]; and L is a ligand which is an organic molecule containing a number of hetero-atoms selected from the group consisting of N, P, O and S which coordinates via at least some of said hetero-atoms to at least one Mn.sup.(IV) -center, and wherein at least two manganese atoms are anti-ferromagnetically coupled.
Claim 15
Dependent Claim
23 words
A method according to claim 12 wherein the substrate is selected form the group consisting of laundry, dishes, textiles, paper and wood pulp.
Claim 16
Dependent Claim
27 words
A method according to claim 12, wherein said catalyst is used at a level of from 0.001 ppm to 100 ppm of manganese in a bleaching solution.
Claim 17
Dependent Claim
17 words
A method according to claim 14, wherein said level of manganese is from 0.01 to 20 ppm.
Claim 18
Dependent Claim
32 words
A method according to claim 12, wherein said bleaching agent is selected from the group consisting of hydrogen peroxide, hydrogen peroxide-liberating compounds, hydrogen peroxide-generating systems, peroxyacids and their salts, and mixtures thereof.
Claim 19
Dependent Claim
12 words
A method according to claim 16, wherein the peroxyacid is N,N-phthaloylaminoperoxycaproic acid.
Claim 20
Dependent Claim
22 words
A method according to claim 16, wherein the catalyst is [Mn IV 2 (μ-O) 3 (Me-TACN) 2 ](PF 6 ) 2 .
Claim 21
Dependent Claim
22 words
A method according to claim 16, wherein the catalyst is [Mn IV 2 (μ-O) 3 (Me/Me-TACN) 2 ](PF 6 ) 2 .
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-09-13 | 1997-03-15 | 1997-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-13 | 2001-03-15 | 2001-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-13 | 2005-03-15 | 2005-09-14 | $7700.00 | Window Closed / Lapsed |