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US 6,475,975 B1Granted
Blue colored liquid crystal compositions
AssigneeColgate-Palmolive Company
InventorsKevin Kinscherf, Harry Aszman, Barbara Thomas
Life of this patent
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Abstract
This invention relates to a blue colored liquid crystal composition comprising an ethoxylated nonionic surfactant, an ethoxylated alkyl ether sulfate surfactant, a sulfonate surfactant, a magnesium inorganic salt, an abrasive, a blue colorant and water.
Claims3
A blue colored liquid crystal detergent composition which comprises by weight:
- (a) about 1% to about 10% of an ethoxylated nonionic surfactant containing ethylene oxide groups;
- (b) about 0.5% to about 6% of a water soluble salt of an ethoxylated C8-18 alkyl ether sulfate surfactant;
- (c) 10% to 22% of a calcium carbonate abrasive;
- (d) 10% to 24% of a sodium salt of a C8-C16 linear alkyl benzene sulfonate surfactant;
- (e) 0.5% to 6% of a magnesium, sodium, calcium or potassium inorganic salt;
- (f) 0.005% to 0.1% of a blue colorant;
- and
- (g) the balance being water, wherein said liquid crystal detergent composition has a storage modulus measured at a temperature between 20° C. to 40° C., at a strain of 0.1% to 5% and a frequency of 10 radians/second of at least about one Pascal and is one phase at a temperature of 8° C. to 43° C. and said composition does not contain an zwitterionic surfactant or a cosurfactant such as glycerol, ethylene glycol, water-soluble polyethylene glycols, polypropylene glycols, mono C1-C6 alkyl ethers and esters of ethylene glycol and propylene glycol.
5 more elements
Dependencies are inferred from the claim text.