US5698186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of controlling dust and compositions produced thereby
Assignee: P&G Hair Care Holding Inc
•
Filing: 1995-05-17
•
Granted: 1997-12-16
•
Expires: 2015-05-17
Abstract
Abstract Method of treating dry, free flowing, dust forming compositions with selected liquids to agglomerate a portion of the particles into groups of particles of sufficient size so that the treated compositions are substantially dust free and retain their free flowing properties, and the compositions produced by such treatment
Inventors
- 👤 George Weeks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:48
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/08; A61K; A61K8/00; A61K8/02; A61K8/0216; A61K8/022; A61K8/0225; A61Q5/06; A61Q5/065; A61Q5/10; B; B01; B01J; B01J2/00; B01J2/28; B01J2/30
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
80 words
A method of de-dusting a dry, free-flowing hair bleach powder comprised of fine, discrete particles less than about 1,000 microns in size, wherein said method comprises treating said dust-forming powder with an effective amount of an inert liquid to agglomerate particles into groups greater than about 40 microns in size and less than about 1,000 microns in size to form a dry, free-flowing hair bleach powder which is substantially free of dust, and wherein said inert liquid is mineral oil.
Claim 2
Independent Claim
80 words
A method of de-dusting a dry, free-flowing hair bleach powder comprised of fine, discrete particles less than about 1,000 microns in size, wherein said method comprises treating said dust-forming powder with an effective amount of an inert liquid to agglomerate particles into groups greater than about 40 microns in size and less than about 1,000 microns in size to form a dry, free-flowing hair bleach powder which is substantially free of dust, and wherein said inert liquid is mineral oil.
Claim 3
Dependent Claim
24 words
The method of claim 1 wherein the dust-forming powder is treated with from about 10% to about 25% by weight of said inert liquid.
Claim 4
Dependent Claim
62 words
A dry, free flowing hair bleach powder which is substantially free of dust formation, wherein said substantially dust-free hair bleach powder comprises particles which have been agglomerated into groups greater than about 40 microns in size and less than about 1,000 microns in size by an effective amount of an inert liquid adsorbed thereon, and wherein said inert liquid is mineral oil.
Claim 5
Dependent Claim
62 words
A dry, free flowing hair bleach powder which is substantially free of dust formation, wherein said substantially dust-free hair bleach powder comprises particles which have been agglomerated into groups greater than about 40 microns in size and less than about 1,000 microns in size by an effective amount of an inert liquid adsorbed thereon, and wherein said inert liquid is mineral oil.
Claim 6
Dependent Claim
24 words
The hair bleach powder of claim 3 wherein the amount of said adsorbed inert liquid is from about 10% to about 25% by weight.
Claim 7
Independent Claim
106 words
A method of de-dusting a dry, free-flowing, dust-forming hair bleach powder comprised of fine, discrete particles less than about 1,000 microns in size, wherein said method comprises treating said dust-forming powder with an effective amount of an inert liquid to agglomerate particles into groups greater than about 40 microns in size and less than about 1,000 microns in size to form a dry, free-flowing hair bleach powder which is substantially free of dust, wherein said inert liquid is mineral oil, and wherein said hair bleach power comprises peroxygenated salts selected from the group consisting of ammonium, alkali metal and alkaline earth metal persulfates and mixtures thereof.
Claim 8
Independent Claim
106 words
A method of de-dusting a dry, free-flowing, dust-forming hair bleach powder comprised of fine, discrete particles less than about 1,000 microns in size, wherein said method comprises treating said dust-forming powder with an effective amount of an inert liquid to agglomerate particles into groups greater than about 40 microns in size and less than about 1,000 microns in size to form a dry, free-flowing hair bleach powder which is substantially free of dust, wherein said inert liquid is mineral oil, and wherein said hair bleach power comprises peroxygenated salts selected from the group consisting of ammonium, alkali metal and alkaline earth metal persulfates and mixtures thereof.
Claim 9
Dependent Claim
86 words
A dry, free-flowing hair bleach powder which is substantially free of dust formation, wherein said substantially dust-free hair bleach powder comprises particles which have been agglomerated into groups greater than about 40 microns in size and less than about 1,000 microns in size by an effective amount of an inert liquid adsorbed thereon, wherein said inert liquid is mineral oil, and wherein said hair bleach powder comprises peroxygenated salts selected from the group consisting of ammonium, alkali metal and alkaline earth metal persulfates and mixtures thereof.
Claim 10
Dependent Claim
86 words
A dry, free-flowing hair bleach powder which is substantially free of dust formation, wherein said substantially dust-free hair bleach powder comprises particles which have been agglomerated into groups greater than about 40 microns in size and less than about 1,000 microns in size by an effective amount of an inert liquid adsorbed thereon, wherein said inert liquid is mineral oil, and wherein said hair bleach powder comprises peroxygenated salts selected from the group consisting of ammonium, alkali metal and alkaline earth metal persulfates and mixtures thereof.
References Cited (Backward Citations)
DE274331C
Cited
US2604469A
Cited
US2988510A
Cited
GB842791A
Cited
US3207824A
Cited
US3560134A
Cited
US3726967A
Cited
US3754961A
Cited
US4009113A
Cited
US3803283A
Cited
US3951840A
Cited
US3979318A
Cited
DE2546298A1
Cited
US4069013A
Cited
DE2538276A1
Cited
US4134725A
Cited
US4170637A
Cited
US4285994A
Cited
US4247537A
Cited
US4192841A
Cited
US4522739A
Cited
DE2843662A1
Cited
US4507278A
Cited
US4344766A
Cited
US4389506A
Cited
SU1169966A1
Cited
US4642196A
Cited
DE3434468A1
Cited
US4726908A
Cited
US4844886A
Cited
US4846409A
Cited
US5279313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-12-15 | 2001-06-16 | 2001-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-12-15 | 2005-06-16 | 2005-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-12-15 | 2009-06-16 | 2009-12-16 | $7700.00 | Window Closed / Lapsed |