US5622691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparing pulverulent hair bleach of peroxygen oxidizer and polyoxyethylene/polyoxypropylene copolymer
Assignee: L'Oréal SA
•
Filing: 1996-08-30
•
Granted: 1997-04-22
•
Expires: 2016-08-30
Abstract
Abstract Cosmetic compositions for bleaching hair comprising at least one oxidizing agent selected from peroxygen compounds and at least one block and/or random linear polyoxyethylene/polyoxypropylene copolymer, the copolymer being anhydrous and, at room temperature, further being both liquid and soluble in water, and the composition being pulverulent and anhydrous. Bleaching powders that are fine, anhydrous, free-flowing, homogeneous, non-dusty, are perfectly dispersible in hydrogen peroxide and have improved cosmetic properties.
Inventors
- 👤 Caroline Tricaud
- 👤 Jean-Marie Millequant
- 👤 Henri Sebag
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:43
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/90; A61K8/02; A61K8/0216; A61K8/022; A61Q; A61Q5/00; A61Q5/08; A61K2800/00; A61K2800/20; A61K2800/30; A61K2800/31
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
66 words
A cosmetic composition for bleaching hair, consisting essentially of at least one oxidizing agent selected from peroxygen compounds and from 5 to 27% by weight relative to the total weight of said composition of at least one block and/or random linear polyoxyethylene/polyoxypropylene copolymer, said copolymer being anhydrous and, at room temperature, further being both liquid and soluble in water, and said composition being pulverulent and anhydrous.
Claim 2
Dependent Claim
66 words
A cosmetic composition for bleaching hair, consisting essentially of at least one oxidizing agent selected from peroxygen compounds and from 5 to 27% by weight relative to the total weight of said composition of at least one block and/or random linear polyoxyethylene/polyoxypropylene copolymer, said copolymer being anhydrous and, at room temperature, further being both liquid and soluble in water, and said composition being pulverulent and anhydrous.
Claim 3
Dependent Claim
115 words
A composition according to claim 1, wherein said copolymer corresponds to the following formula (1) or (2): (AO).sub.x (EO).sub.m (AO).sub.y ( 1) or (AO).sub.x (PO).sub.m (AO).sub.y ( 2) wherein EO represents a unit which is derived from ethylene oxide, PO a unit which is derived from propylene oxide, and AO one of the EO or PO units as defined above, the terminal units of the polymeric chain being hydroxyl functional groups or C 1 -C 2 alkoxy functional groups, at least one of these terminal units being necessarily a hydroxyl functional group, and the subscripts x, y and m being integers such that said copolymer is, at room temperature, both liquid and soluble in water.
Claim 4
Dependent Claim
21 words
A composition according to claim 2, wherein said copolymer is a copolymer of the (EO) x (PO) m (EO) y type.
Claim 5
Dependent Claim
20 words
A composition according to claim 1, wherein said content of copolymer(s) ranges from 5% to less than 25% by weight.
Claim 6
Dependent Claim
28 words
A composition according to claim 1, wherein the content of said at least one peroxygen compound ranges from 20 to 60% by weight relative to the whole formulation.
Claim 7
Dependent Claim
23 words
A composition according to claim 5 wherein the content of said at least one peroxygen compound ranges from 30 to 50% by weight.
Claim 8
Dependent Claim
19 words
A composition according to claim 5, wherein said at least one peroxygen compound is selected from alkali metal persulphates.
Claim 9
Dependent Claim
37 words
A composition according to claim 1, wherein the quantity by weight of the particles constituting said composition which have a size less than or equal to 65 microns is less than or equal to 5% by weight.
Claim 10
Dependent Claim
34 words
A composition according to claim 8, wherein the quantity by weight of the particles constituting said composition which have a size less than or equal to 65 microns is less than 2% by weight.
Claim 11
Dependent Claim
34 words
A composition according to claim 9, wherein the quantity by weight of the particles constituting said composition which have a size less than or equal to 65 microns is less than 1% by weight.
Claim 12
Dependent Claim
22 words
A composition according to claim 1, wherein the size of the particles constituting said composition is less than 1000 microns (1 mm).
References Cited (Backward Citations)
US3639574A
Cited
US3852210A
Cited
FR2276809A1
Cited
US4107065A
Cited
US4170637A
Cited
GB2033939A
Cited
DE3434468A1
Cited
US5279313A
Cited
US5294436A
Cited
EP0560088B1
Cited
EP0574696A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-04-21 | 2000-10-21 | 2001-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-04-21 | 2004-10-21 | 2005-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-04-21 | 2008-10-21 | 2009-04-22 | $7700.00 | Window Closed / Lapsed |