US4397757A
Expired / Lapsed
US
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Bleaching compositions having quarternary ammonium activators
Assignee: Lever Brothers Co
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Filing: 1980-12-15
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Granted: 1983-08-09
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Expires: 2000-12-15
Abstract
Abstract In a hydrogen peroxide bleaching system it is known to use an activator which forms a peracid bleaching species; specific esters have been proposed previously as activators. The present invention defines esters having a substantive moeity which provides improved bleaching by giving peracid generation at or near the substrate surface.
Inventors
- 👤 Samuel C. Bright
- 👤 Dennis Postlethwaite
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:39
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/06; C07D213/16; C07D213/20; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3907; C11D3/3917; C11D3/3927
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
126 words
A bleaching formulation consisting essentially of a hydrogen-peroxide releasing material and a chemical compound of the formula ##STR6## wherein n is 3 to about 25; R 1 is a radical selected from the group consisting of alkyl, alkaryl, aryl, hydroxyalkyl and polyoxyalkylene; R 2 and R 3 are each a radical selected from the group lower alkyl and hydroxyalkyl; or two or more of R 1 , R 2 , or R 3 together form an alkyl substituted or unsubstituted nitrogen-containing heterocyclic ring system selected from the group consisting of pyridine, morpholine, and pyrrolidine; R 4 is a phenyl group; X is selected from the group of chlorine and bromine; and the total number of carbon atoms on the quaternary atom are less than about 28.
Claim 2
Dependent Claim
126 words
A bleaching formulation consisting essentially of a hydrogen-peroxide releasing material and a chemical compound of the formula ##STR6## wherein n is 3 to about 25; R 1 is a radical selected from the group consisting of alkyl, alkaryl, aryl, hydroxyalkyl and polyoxyalkylene; R 2 and R 3 are each a radical selected from the group lower alkyl and hydroxyalkyl; or two or more of R 1 , R 2 , or R 3 together form an alkyl substituted or unsubstituted nitrogen-containing heterocyclic ring system selected from the group consisting of pyridine, morpholine, and pyrrolidine; R 4 is a phenyl group; X is selected from the group of chlorine and bromine; and the total number of carbon atoms on the quaternary atom are less than about 28.
Claim 3
Dependent Claim
29 words
The bleaching formulation of claim 1 wherein the chemical compound is present in an amount of from about 0.5 to 1.5 moles per mole of hydrogen peroxide releasing material.
Claim 4
Dependent Claim
12 words
A method of bleaching fabric using the bleaching formulation of claim 1.
Claim 5
Dependent Claim
19 words
A washing formulation consisting essentially of the bleaching formulation of claim 1 in combination with a detergent active material.
Claim 6
Dependent Claim
19 words
A bleaching formulation according to claim 1 wherein the compound of formula I is N-Octyl NN-Dimethyl N-(10-Carbophenoxydecyl) Ammonium Bromide.
Claim 7
Dependent Claim
19 words
A bleaching formulation according to claim 1 wherein the compound of formula I is N-Octyl NN-Dimenthyl N-(10-Carbophenoxydecyl) Ammonium Chloride.
Claim 8
Dependent Claim
19 words
A bleaching formulation according to claim 1 wherein the compound of formula I is N-Hexadecyl NN-Dimethyl N-(10-Carbophenoxydecyl) Ammonium Bromide.
Claim 9
Dependent Claim
18 words
A bleaching formulation according to claim 1 wherein the compound of formula I is NNN-Triethyl N-(10-Carbophenoxydecyl) Ammonium Bromide.
Claim 10
Dependent Claim
19 words
A bleaching formulation according to claim 1 wherein the compound of formula I is NN-Diethyl N-(2-Hydroxyethyl) N-(10-Carbophenoxydecyl) Ammonium Bromide.
Claim 11
Dependent Claim
18 words
A bleaching formulation according to claim 1 wherein the compound of formula I is NNN-Tri(2-Hydroxyethyl) N-(10-Carbophenoxydecyl) Ammonium Bromide.
Claim 12
Dependent Claim
19 words
A bleaching formulation according to claim 1 wherein the compound of formula I is N-Phenyl NN-Dimethyl N-(10-Carbophenoxydecyl) Ammonium Bromide.
Claim 13
Dependent Claim
17 words
A bleaching formulation according to claim 1 wherein the compound of formula I is N-(10-Carbophenoxydecyl) Pyridinium Bromide.
Claim 14
Dependent Claim
17 words
A bleaching formulation according to claim 1 wherein the compound of formula I is N-(10-Carbophenoxydecyl) Pyridinium Chloride.
Claim 15
Dependent Claim
17 words
A bleaching formulation according to claim 1 wherein the compound of formula I is N-(10-Carbophenoxydecyl) Collidinium Bromide.
Claim 16
Dependent Claim
19 words
A bleaching formulation according to claim 1 wherein the compound of formula I is N-Octyl NN-Dimethyl N-(3-Carbophenoxypropyl) Ammonium Chloride.
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) | 1986-08-08 | 1987-02-07 | 1987-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-08 | 1991-02-07 | 1991-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-08 | 1995-02-07 | 1995-08-09 | $7700.00 | Window Closed / Lapsed |