EP0875237A2
Expired / Lapsed
EP
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Hair dye compositions and method of thickening the same
Assignee: Rohm and Haas Co
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Filing: 1998-04-27
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Granted: —
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Expires: 2018-04-27
Abstract
Abstract The present invention provides hair dye compositions containing a certain rheology modifying system. The hair dye compositions have improved thickening and shear thinning properties. The present invention also provides a method of thickening a hair dye composition using the rheology modifying system.
Inventors
- 👤 Charles Elwood Jones
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 08:58
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/39; A61K8/72; A61K8/84; A61K8/87; A61Q; A61Q5/00; A61Q5/06; A61Q5/065; A61Q5/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
62 words
A hair dye composition, comprising: a) one or more hair dyeing agents; b) at least 0.1 weight percent of at least one hydrophobically modified nonionic polyol, based
on the total weight of the hair dye composition; c) at least 0. I weight percent of at least one associative agent, based on the total weight of the
hair dye composition; and d) water.
Claim 2
Dependent Claim
25 words
The composition of claim 1, wherein the viscosity of the composition at a shear rate of
0.3 rpm or less is at least 6000 centipoises.
Claim 3
Dependent Claim
97 words
A method of making the hair dye composition of claim 1, comprising: a) forming a dye lotion comprising one or more hair dyeing agents, and at least one first
compound selected from the group consisting of a hydrophobically modified nonionic polyol,
an associative agent, and combinations thereof; b) forming a developer solution comprising at least one oxidizing agent, water and at least one
second compound selected from the group consisting ofa hydrophobically modified nonionic
polyol, an associative agent, and combinations thereof; and c) combining the dye lotion and the developer solution to form the hair dye composition.
Claim 4
Dependent Claim
114 words
A multi-part hair dye composition, comprising: a) a dye lotion comprising one or more hair dyeing agents, and at least one first compound
selected from the group consisting of hydrophobically modified nonionic polyol, an
associative agent, and combinations thereof; and b) a developer solution comprising at least one oxidizing agent, water, and at least one second
compound selected from the group consisting of a hydrophobically modified nonionic polyol,
an associative agent, and combinations thereof; and provided that when the parts of the multi-part hair dye composition are combined to
form a combined hair dye composition, the combined hair dye composition comprises at least
one hydrophobically modified nonionic polyol, and at least one associative agent.
Claim 5
Dependent Claim
33 words
The composition of claim 1 or 4, wherein the hydrophobically modified nonionic
polyol is selected from the group consisting of polyethoxylated urethane, a hydrophobically
modified cellulose, a hydrophobically modified starch, and combinations thereof.
Claim 6
Dependent Claim
24 words
The composition of claim 5, wherein the polyethoxylated urethane comprises a
reaction product of at least one isocyanate and at least one polyether polyol.
Claim 7
Dependent Claim
33 words
The composition of claim 5, wherein the polyethoxylated urethane comprises a
reaction product of at least one polyalkylene glycol, at least one water insoluble organic
diisocyanate, and a monofunctional active hydrogen containing compound.
Claim 8
Dependent Claim
91 words
The composition of claim 5, wherein the polyethoxylated urethane is a mixture of
polyurethanes comprising a first polyurethane with at least two end groups, where each end
group comprises a terminal isocyanate and a polyether; a second polyurethane with at least
two end groups, where each end group comprises a terminal isocyanate group and a non-functional
group; and a third polyurethane with at least two end groups, where one end group
comprises a terminal isocyanate and a polyether and one other end group comprises a terminal
isocyanate and a non-functional group.
Claim 9
Dependent Claim
33 words
The composition of claim I or 4, wherein the associative agent has an average HLB of
15 or less, and has at least one hydrophobic group having from 6 to 30 carbon atoms.
Claim 10
Dependent Claim
27 words
The composition of claim I or 4, wherein the associative agent is selected from the
group consisting of an alcohol ethoxylate, an alkylphenol ethoxylate, and combinations
thereof.
Claim 11
Independent Claim
19 words
A method of dyeing hair, comprising: applying the hair dye composition of claim I or 4
onto the hair.
Claim 12
Independent Claim
48 words
A method of thickening a hair dye composition, comprising: combining one or more
hair dyeing agents, water, at least 0.1 weight percent of at least one hydrophobically modified
nonionic polyol, and at least 0.1 weight percent of at least one associative agent to form the
hair dye composition.
Claim 13
Dependent Claim
25 words
The method of claim 12, wherein the viscosity of the composition at a shear rate of 0.3
rpm or less is at least 6000 centipoises.
Claim 14
Dependent Claim
32 words
The method of claim 12, wherein the hydrophobically modified nonionic polyol is
selected from the group consisting of a polyethoxylated urethane, a hydrophobically modified
cellulose, a hydrophobically modified starch, and combinations thereof.
Claim 15
Dependent Claim
24 words
The method of claim 14, wherein the polyethoxylated urethane comprises a reaction
product of at least one isocyanate and at least one polyether polyol.
References Cited (Backward Citations)
No citation records indexed.
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