US4483778A
Expired / Lapsed
US
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Peroxygen bleach activators and bleaching compositions
Assignee: Procter and Gamble Co
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Filing: 1983-12-22
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Granted: 1984-11-20
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Expires: 2003-12-22
Abstract
Abstract This invention relates to peroxygen bleaching activator compounds and bleaching compositions. The peroxygen bleach activator compounds, used in combination with peroxygen bleach compounds which yield hydrogen peroxide in an aqueous solution, provide effective and efficient bleaching of textiles over a wide range of temperatures. In a highly preferred embodiment the bleaching compositions of the invention are detergent compositions.
Inventors
- 👤 James E. Thompson
- 👤 Charles D. Broaddus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:50
CPC Classifications
C; C07; C07C; C07C309/00; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3907; C11D3/391; C11D3/3912; C11D3/3915; C11D3/3917; C11D3/392; C11D3/3937
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
81 words
A peroxygen bleach activator comprising a compound of the general formula ##STR33## where R is a straight or branched chain alkyl or alkenyl containing from about 4 to about 14 carbon atoms, R 1 is H, CH 3 , C 2 H 5 or C 3 H 7 , X' is Cl, OCH 3 or OC 2 H 5 , and L is a leaving group the conjugate acid of which has a pK a of about 4 to about 30.
Claim 2
Dependent Claim
81 words
A peroxygen bleach activator comprising a compound of the general formula ##STR33## where R is a straight or branched chain alkyl or alkenyl containing from about 4 to about 14 carbon atoms, R 1 is H, CH 3 , C 2 H 5 or C 3 H 7 , X' is Cl, OCH 3 or OC 2 H 5 , and L is a leaving group the conjugate acid of which has a pK a of about 4 to about 30.
Claim 3
Dependent Claim
10 words
A compound according to claim 1 wherein X' is Cl.
Claim 4
Dependent Claim
61 words
A compound according to claim 1 wherein L is selected from the group consisting of: ##STR34## wherein R and R 1 are as defined in claim 1, X is Cl, R 2 is an alkyl chain containing from about 1 to about 8 carbon atoms, R 3 is H or R 2 , and Y is H or a solubilizing group.
Claim 5
Dependent Claim
83 words
A compound according to claim 3 wherein Y is selected from the group consisting of: --SO 3 - M + , --COO - M + , --SO 4 - M + , (--N + R 3 4 )X - and O←NR 2 4 and mixtures thereof, wherein R 4 is an alkyl chain containing from about 1 to about 4 carbon atoms, M is a cation, and X is an anion such that M and X together provided solubility to the bleach activator.
Claim 6
Dependent Claim
43 words
A compound according to claim 4 wherein Y is selected from the group consisting of --SO 3 - M + , --COO - M + , and mixtures thereof, wherein M is selected from the group consisting of sodium, potassium and mixtures thereof.
Claim 7
Dependent Claim
50 words
A compound according to claim 3 wherein L is selected from the group consisting of: ##STR35## R 2 is an alkyl chain containing from about 1 to about 8 carbon atoms, and Y is --SO 3 - M + or --COO - M + wherein M is sodium or potassium.
Claim 8
Dependent Claim
18 words
A compound according to claim 6 wherein L has the formula: ##STR36## and M is sodium or potassium.
Claim 9
Dependent Claim
27 words
A compound according to claim 3 wherein R is a linear alkyl group containing from about 6 to about 10 carbon atoms and R 1 is H.
Claim 10
Dependent Claim
22 words
A compound according to claim 8 wherein R is a linear alkyl chain containing from about 6 to about 8 carbon atoms.
Claim 11
Dependent Claim
31 words
A compound according to claim 3 wherein R is a linear alkyl chain containing from about 6 to about 8 carbon atoms and R 1 is C 2 H 5 .
Claim 12
Dependent Claim
85 words
A compound according to claim 3 wherein R is a branched alkyl chain containing from about 6 to about 12 carbon atoms wherein the longest linear alkyl portion of said chain contains from about 4 to about 10 carbon atoms, and L is selected from the group consisting of: ##STR37## wherein R 2 is an alkyl chain containing from about 1 to about 8 carbon atoms, and Y is --SO 3 - M + or --COO - M + wherein M is sodium or potassium.
Claim 13
Dependent Claim
23 words
A compound according to claim 11 wherein the longest linear alkyl portion of R contains from about 4 to about 8 carbon atoms.
Claim 14
Dependent Claim
19 words
A compound according to claim 8 wherein L has the general formula ##STR38## wherein M is sodium or potassium.
Claim 15
Dependent Claim
19 words
A compound according to claim 11 wherein L has the general formula ##STR39## wherein M is sodium or potassium.
Claim 16
Dependent Claim
70 words
A peroxygen bleach activator comprising a compound of the general formula ##STR40## wherein R is a branched or linear alkyl or alkenyl group having from about 4 to about 14 carbon atoms; R 1 is H, CH 3 , C 2 H 5 or C 3 H 7 ; and X' is Cl, OCH 3 or OC 2 H 5 ; provided that at least one A is not H.
Claim 17
Dependent Claim
70 words
A peroxygen bleach activator comprising a compound of the general formula ##STR40## wherein R is a branched or linear alkyl or alkenyl group having from about 4 to about 14 carbon atoms; R 1 is H, CH 3 , C 2 H 5 or C 3 H 7 ; and X' is Cl, OCH 3 or OC 2 H 5 ; provided that at least one A is not H.
Claim 18
Dependent Claim
11 words
A compound according to claim 15 wherein no A is H.
Claim 19
Dependent Claim
44 words
A bleaching composition comprising: (a) a peroxygen bleach compound capable of yielding hydrogen peroxide in an aqueous solution; and (b) a bleach activator compound according to claim 1 wherein the ratio of (a):(b) is about 10:1 to about 1:4, by weight of the composition.
Claim 20
Dependent Claim
23 words
A composition according to claim 17 wherein the ratio of (a):(b) is from about 3:1 to about 1:2, by weight of the composition.
Claim 21
Dependent Claim
23 words
A composition according to claim 18 wherein the ratio of (a):(b) is from about 3:1 to about 1:1, by weight of the composition.
Claim 22
Dependent Claim
37 words
A composition according to claim 17 wherein the peroxygen bleaching compound is selected from the group consisting of sodium perborate monohydrate, sodium perborate tetrahydrate, sodium carbonate peroxyhydrate, sodium pyrophosphate peroxyhydrate, urea peroxyhydrate, sodium peroxide and mixtures thereof.
Claim 23
Dependent Claim
15 words
A composition according to claim 20 wherein the peroxygen bleaching compound is sodium perborate monohydrate.
Claim 24
Dependent Claim
54 words
A bleaching composition comprising, by weight: (a) from about 1% to about 60% of a peroxygen bleaching compound capable of yielding hydrogen peroxide in an aqueous solution; (b) from about 1% to about 30% of a detergent surfactant; (c) from about 0.5% to about 40% of a bleach activator compound according to claim 2.
Claim 25
Dependent Claim
17 words
The composition of claim 22 further comprising from about 10% to about 60% of a detergency builder.
Claim 26
Dependent Claim
45 words
A composition according to claim 23 wherein the bleach activator is selected from the group consisting of sodium 4-(2-chlorooctanoyloxy)benzenesulfonate, sodium 4-(2-chlorononanoyloxy)benzenesulfonate, sodium 4-(2-chlorodecanoyloxy)benzenesulfonate, sodium 4-(3,5,5-trimethyl-2-chlorohexanoyloxy)benzene sulfonate, sodium 4-(2-chloro-2-ethyl-hexanoyloxy)benzenesulfonate, sodium 2-(2-chlorooctanoyloxy)benzenesulfonate, sodium 2-(2-chlorononanoyloxy)benzene sulfonate, sodium 2-(2-chlorooctanoyloxy)benzoate, sodium 2-(2-chlorononanoyloxy)benzoate, sodium 4-(2-chlorooctanoyloxy)benzoate, and sodium 4-(2-chlorononanoyloxy)benzoate, and mixtures thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-20 | 1988-05-21 | 1988-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-20 | 1992-05-21 | 1992-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-20 | 1996-05-21 | 1996-11-20 | $7700.00 | Window Closed / Lapsed |