Stable aqueous surfactant compositions
First Claim
1. A stable, aqueous surfactant containing composition, comprising:
- a. at least one anionic, zwitterionic, amphoteric, nonionic, or cationic surfactant, or combinations thereof;
b. at least one substantially crosslinked alkali-swellable acrylate copolymer rheology modifier;
c. water;
d. an effective amount of at least one alkaline material to yield a composition having a pH of from about 5 to about 14; and
e. an effective amount of a subsequently added acidic material to yield a composition having a reduced pH of from about 1 to about 12;
wherein said at least one crosslinked alkali-swellable acrylate copolymer comprises;
f. about 20% to about 80% by weight of at least one carboxylic acid monomer comprising acrylic acid, methacrylic acid, itaconic acid, fumaric acid, crotonic acid, aconitic acid, or maleic acid, or combinations thereof;
g. about 80% to about 15% by weight of at least one α
,β
-ethylenically unsaturated monomer, wherein said monomer has the formula;
CH2═
CXY,
i) where X is H and Y is —
COOR, —
C6H4R′
, —
CN, —
CONH2, —
Cl, —
NC4H6O, NH(CH2)3COOH, —
NHCOCH3, —
CONHC(CH3)3, —
CO—
N(CH3)2, or X is CH3 and Y is —
COOR, —
C6H4R′
, —
CN;
or —
CH═
CH2;
or X is Cl and Y is Cl, and R is C1-C18 alkyl, or hydroxy C2-C18 alkyl, R′
is H or C1-C18 alkyl, or having the formula;
CH2═
CH (OCOR1);
ii) where R1 is C1-C18 alkyl;
or having the formula;
CH2═
CH2 or CH2═
CHCH3;
iii) h. from about 0.01 to about 5% by weight of at least one polyunsaturated compound useful in forming a partially or substantially crosslinked three dimensional network; and
i. at least one substantially insoluble material requiring suspension or stabilization.
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Accused Products
Abstract
A stable, aqueous composition containing a substantially crosslinked alkali-swellable acrylate copolymer rheology modifier, a surfactant, an alkaline material, and various compounds therein, as for example substantially insoluble materials requiring suspension or stabilization, such as a silicone, an oily material, or a pearlescent material. Additionally, this invention also relates to the formation of a rheologically and phase stable cationic hair dye composition. The invention further relates to the incorporation of an acidic material after the addition of an alkaline material to reduce the pH of the composition without negatively impacting the viscosity of the composition.
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Citations
13 Claims
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1. A stable, aqueous surfactant containing composition, comprising:
-
a. at least one anionic, zwitterionic, amphoteric, nonionic, or cationic surfactant, or combinations thereof;
b. at least one substantially crosslinked alkali-swellable acrylate copolymer rheology modifier;
c. water;
d. an effective amount of at least one alkaline material to yield a composition having a pH of from about 5 to about 14; and
e. an effective amount of a subsequently added acidic material to yield a composition having a reduced pH of from about 1 to about 12;
wherein said at least one crosslinked alkali-swellable acrylate copolymer comprises;
f. about 20% to about 80% by weight of at least one carboxylic acid monomer comprising acrylic acid, methacrylic acid, itaconic acid, fumaric acid, crotonic acid, aconitic acid, or maleic acid, or combinations thereof;
g. about 80% to about 15% by weight of at least one α
,β
-ethylenically unsaturated monomer, wherein said monomer has the formula;
CH2═
CXY,
i)where X is H and Y is —
COOR, —
C6H4R′
, —
CN, —
CONH2, —
Cl, —
NC4H6O, NH(CH2)3COOH, —
NHCOCH3, —
CONHC(CH3)3, —
CO—
N(CH3)2,or X is CH3 and Y is —
COOR, —
C6H4R′
, —
CN;
or —
CH═
CH2;
or X is Cl and Y is Cl, and R is C1-C18 alkyl, or hydroxy C2-C18 alkyl, R′
is H or C1-C18 alkyl,or having the formula;
CH2═
CH (OCOR1);
ii)where R1 is C1-C18 alkyl;
or having the formula;
CH2═
CH2 or CH2═
CHCH3;
iii)h. from about 0.01 to about 5% by weight of at least one polyunsaturated compound useful in forming a partially or substantially crosslinked three dimensional network; and
i. at least one substantially insoluble material requiring suspension or stabilization. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification