Patent EP0583767A2 successfully refreshed from Google Patents.
EP0583767A2
Expired / Lapsed
EP
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Methods of controlling dust and compositions produced thereby
Assignee: P&G Hair Care Holding Inc
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Filing: 1993-08-16
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Granted: —
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Expires: 2013-08-16
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
EP
Data Source
google_patents
Last Synchronized
2026-11-01 12:22
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: 16
Claim 1
Independent Claim
105 words
A method for converting dry, free flowing, particulate compositions which are dust forming during handling, transportation and storage due to the presence of particles having a particle size less than about 40 microns to form dry, free flowing, particulate compositions which are substantially free of dust formation, said method comprising treating the compositions with an effective amount of an inert liquid to agglomerate a portion of the particles into agglomerated groups of particles in which each group has a particle size greater than about 40 microns, the compositions being substantially free of discrete or agglomerated particles having a particle size less than about 40 microns.
Claim 2
Independent Claim
119 words
A method for converting dry, free flowing, particulate compositions which are dust forming during handling, transportation and storage due to the presence of particles having a particle size less than about 40 microns to form dry, free flowing, particulate compositions which are substantially free of dust formation and contain ammonium, alkali metal or alkaline earth metal peroxygenated salts or mixtures thereof, said method comprising treating the compositions with an effective amount of an inert liquid to agglomerate a portion of the particles into agglomerated groups of particles in which each group has a particle size greater than about 40 microns, the compositions being substantially free of discrete or agglomerated particles having a particle size less than about 40 microns.
Claim 3
Dependent Claim
28 words
A method as in claim 1 or 2 wherein the composition is treated with from about 10 % to about 25 % by weight of an inert liquid.
Claim 4
Dependent Claim
14 words
A method as in claim 3 wherein the composition is a hair treatment composition.
Claim 5
Dependent Claim
19 words
A method as in claim 4 wherein the composition is a hair dye composition, or a hair bleaching composition.
Claim 6
Dependent Claim
26 words
A method as in claim 5 wherein the hair dye composition is a semipermanent hair dye composition, an oxidative hair dye composition or a mixture thereof.
Claim 7
Independent Claim
25 words
A method as in any one of the preceding claims wherein the inert liquid is a mineral oil, a silicone oil or a natural oil.
Claim 8
Dependent Claim
23 words
A method as in claim 2 wherein the peroxygenated salts are persulfates, preferably ammonium persulfate, sodium, persulfate, potassium persulfate or a mixture thereof.
Claim 9
Dependent Claim
75 words
Dry, free flowing, particulate compositions which are substantially free of dust formation comprising discrete particles and agglomerated groups of particles having adsorbed thereon an effective amount of an inert liquid to agglomerate a portion of the particles to form agglomerated groups of particles in which each group has a particle size greater than about 40 microns, said compositions being substantially free of discrete or agglomerated particles having a particle size less than about 40 microns.
Claim 10
Dependent Claim
88 words
Dry, free flowing, particulate compositions which are substantially free of dust formation comprising discrete particles and agglomerated groups of particles of ammonium, alkali metal or alkaline earth metal peroxygenated salts or mixtures thereof having adsorbed thereon an effective amount of an inert liquid to agglomerate a portion of the particles to form agglomerated groups of particles in which each group has a particle size greater than about 40 microns, said compositions being substantially free of discrete or agglomerated particles having a particle size less than about 40 microns.
Claim 11
Dependent Claim
29 words
A composition as in claim 9 or 10 wherein the amount of inert liquid adsorbed on the particles is from about 10 % to about 25 % by weight.
Claim 12
Dependent Claim
14 words
A composition as in claim 11 wherein the composition is a hair treatment composition.
Claim 13
Dependent Claim
19 words
A composition as in claim 12 wherein the composition is a hair dye composition or a hair bleaching composition.
Claim 14
Dependent Claim
26 words
A composition as in claim 13 wherein the hair dye composition is a semipermanent hair dye composition, an oxidative hair dye composition or a mixture thereof.
Claim 15
Dependent Claim
26 words
A composition as in any one of claims 9 to 14 wherein the inert liquid is a mineral oil, a silicone oil or a natural oil.
Claim 16
Dependent Claim
23 words
A composition as in claim 10 wherein the peroxygenated salts are persulfates, preferably ammonium persulfate, sodium persulfate, potassium persulfate or a mixture thereof.
References Cited (Backward Citations)
No citation records indexed.
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