US4554091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colored bleaching compositions
Assignee: Lever Brothers Co
•
Filing: 1984-06-04
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Granted: 1985-11-19
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Expires: 2004-06-04
Abstract
Abstract Aqueous bleaching compositions can be satisfactorily colored by inclusion therein of a colored polymer latex which consists of a copolymer of a hydrophobic monomer with a reactive copolymerizable monomer containing a chromophore. These colored polymer latices are particularly suitable for coloring hypochlorite-containing bleaching compositions.
Inventors
- 👤 Robert A. Jones
- 👤 Frank Jones
- 👤 Graham Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:16
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/395; C11D3/3956; C11D3/16; C11D3/37; C11D3/3746; C11D3/3769; C11D3/3773; C11D3/39; C11D3/3947; C11D3/40
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
55 words
A coloured aqueous bleaching agent comprising an oxygen or chlorine bleaching agent and a colouring agent in an aqueous medium, wherein the composition comprises from 0.0005-10% by weight of a colouring agent which is a coloured polymer latex consisting of a copolymer of a hydrophobic olefinic monomer with a copolymerisable olefinic monomer containing a chromophore.
Claim 2
Dependent Claim
55 words
A coloured aqueous bleaching agent comprising an oxygen or chlorine bleaching agent and a colouring agent in an aqueous medium, wherein the composition comprises from 0.0005-10% by weight of a colouring agent which is a coloured polymer latex consisting of a copolymer of a hydrophobic olefinic monomer with a copolymerisable olefinic monomer containing a chromophore.
Claim 3
Dependent Claim
20 words
A composition according to claim 1, wherein the hydrophobic olefinic monomer is capable of undergoing an emulsion or suspension polymerisation.
Claim 4
Dependent Claim
31 words
A composition according to claim 2, wherein the hydrophobic olefinic monomer is styrene or C 1 -C 4 alkylstyrene or a monohalogenated styrene, an acrylate or a methacrylate or a vinylester.
Claim 5
Dependent Claim
19 words
A composition according to claim 1, wherein the copolymerisable group of the chromophore is a vinyl or isopropenyl group.
Claim 6
Dependent Claim
27 words
A composition according to claim 1, wherein the coloured polymer latex is a copolymer of a copolymerisable derivative of an amino- or hydroxyl group-containing dye, with stryene.
Claim 7
Dependent Claim
14 words
A composition according to claim 1, wherein the composition contains an alkali metal hypochlorite.
Claim 8
Dependent Claim
13 words
A composition according to claim 6, wherein the composition is a thickened composition.
References Cited (Backward Citations)
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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) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |