Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2002-05-13
2003-04-08
Ogden, Necholus (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S424000, C510S426000, C510S428000, C510S488000, C510S508000
Reexamination Certificate
active
06544940
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to novel light duty liquid detergent compositions with high foaming and good grease cutting properties.
BACKGROUND OF THE INVENTION
The prior art is replete with light duty liquid detergent compositions containing nonionic surfactants in combination with avionic and/or betaine surfactants wherein the nonionic detergent is not the major active surfactant. In U.S. Pat. No. 3,658,985 an avionic based shampoo contains a minor amount of a fatty acid alkanolamide. U.S. Pat. No. 3,769,398 discloses a betaine-based shampoo containing minor amounts of nonionic surfactants. This patent states that the low foaming properties of nonionic detergents renders its use in shampoo compositions non-preferred. U.S. Pat. No. 4,329,335 also discloses a shampoo containing a betaine surfactant as the major ingredient and minor amounts of a nonionic surfactant and of a fatty acid mono- or di-ethanolamide. U.S. Pat. No. 4,259,204 discloses a shampoo comprising 0.8 to 20% by weight of an anionic phosphoric acid ester and one additional surfactant which may be either anionic, amphoteric, or nonionic. U.S. Pat. No. 4,329,334 discloses an anionic-amphoteric based shampoo containing a major amount of anionic surfactant and lesser amounts of a betaine and nonionic surfactants.
U.S. Pat. No. 3,935,129 discloses a liquid cleaning composition containing an alkali metal silicate, urea, glycerin, triethanolamine, an anionic detergent and a nonionic detergent. The silicate content determines the amount of anionic and/or nonionic detergent in the liquid cleaning composition. However, the foaming properties of these detergent compositions are not discussed therein.
U.S. Pat. No. 4,129,515 discloses a heavy duty liquid detergent for laundering fabrics comprising a mixture of substantially equal amounts of anionic and nonionic surfactants, alkanolamines and magnesium salts, and, optionally, zwitterionic surfactants as suds modifiers.
U.S. Pat. No. 4,224,195 discloses an aqueous detergent composition for laundering socks or stockings comprising a specific group of nonionic detergents, namely, an ethylene oxide of a secondary alcohol, a specific group of anionic detergents, namely, a sulfuric ester salt of an ethylene oxide adduct of a secondary alcohol, and an amphoteric surfactant which may be a betaine, wherein either the anionic or nonionic surfactant may be the major ingredient.
The prior art also discloses detergent compositions containing all nonionic surfactants as shown in U.S. Pat. Nos. 4,154,706 and 4,329,336 wherein the shampoo compositions contain a plurality of particular nonionic surfactants in order to affect desirable foaming and detersive properties despite the fact that nonionic surfactants are usually deficient in such properties.
U.S. Pat. No. 4,013,787 discloses a piperazine based polymer in conditioning and shampoo compositions which may contain all nonionic surfactant or all anionic surfactant.
U.S. Pat. No. 4,450,091 discloses high viscosity shampoo compositions containing a blend of an amphoteric betaine surfactant, a polyoxybutylenepolyoxyethylene nonionic detergent, an anionic surfactant, a fatty acid alkanolamide and a polyoxyalkylene glycol fatty ester. But, none of the exemplified compositions contain an active ingredient mixture wherein the nonionic detergent is present in major proportion which is probably due to the low foaming properties of the polyoxybutylene polyoxyethylene nonionic detergent.
U.S. Pat. No. 4,595,526 describes a composition comprising a nonionic surfactant, a betaine surfactant, an anionic surfactant and a C
12
-C
14
fatty acid monoethanolamide foam stabilizer.
SUMMARY OF THE INVENTION
It has now been found that a high foaming liquid cleaning composition which has good grease cutting properties and antibacterial properties can be formulated with a sodium salt of a C
8
-C
18
linear alkyl benzene sulfonate, a magnesium salt of a C
8
-C
18
linear alkyl benzene sulfonate, an amine oxide, an alkyl polyglucoside, a C
8
-C
18
ethoxylated alkyl ether sulfate, zinc chloride and water.
Accordingly, one object of this invention is to provide novel, high foaming, light duty liquid detergent compositions containing zinc chloride.
To achieve the foregoing and other objects and in accordance with the purpose of the present invention, as embodied and broadly described herein the novel, high foaming, light duty liquid cleaning composition of this invention comprises a C
8
-C
18
ethoxylated alkyl ether sulfate, a magnesium salt of a C
8
-C
18
linear alkyl benzene sulfonate, sodium salt of a C
8
-C
18
linear alkyl benzene sulfonate, an alkyl polyglucoside, an amine oxide, zinc chloride and water, wherein the composition does not contain a glycol ether solvent, an ethoxylated and/or propoxylated nonionic surfactant, a zwitterionic surfactant, a polyoxyalkylene glycol fatty acid, a builder, a polymeric thickener, an acid, a clay, a fatty acid alkanol amide, abrasive, silicas, tricloscan, alkaline earth metal carbonates, alkyl glycine surfactant or cyclic imidinium surfactant.
DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to a liquid cleaning composition which is preferably a light duty liquid cleaning composition having antibacterial properties which comprises approximately by weight:
(a) 6% to 15% of a magnesium salt of a C
8
-C
18
linear alkyl sulfonate surfactant;
(b) 1% to 5% of a sodium salt of a C
8
-C
18
linear alkyl sulfonate surfactant;
(c) 3% to 12% of an amine oxide surfactant;
(d) 5% to 15% of an alkyl polyglucoside surfactant;
(e) 7% to 15% of a C
8
-C
18
ethoxylated alkyl ether sulfate;
(e) 0.5% to 3% of an inorganic zinc salt such as zinc chloride; and
(g) the balance being water wherein the composition does not contain a glycol ether solvent, an ethoxylated and/or propoxylated nonionic surfactant, a zwitterionic surfactant, a polyoxyalkylene glycol fatty acid, a builder, a polymeric thickener, an acid, a clay, a fatty acid alkanol amide, abrasive, silicas, triclosan, alkaline earth metal carbonates, alkyl glycine surfactant or cyclic imidinium surfactant.
The C
8
-C
18
ethoxylated alkyl sulfate surfactants which can be used in the instant compositions at a concentration of 7 to about 15 wt. %, more preferably about 8 to 18 wt. % have the structure
R—(OCHCH
2
)
n
OSO
3
−
M
+
wherein n is about 1 to about 22 more preferably 1 to 3 and R is an alkyl group having about 8 to about 18 carbon atoms, more preferably 12 to 15 and natural cuts, for example, C
12-14
; C
12-15
and M is an ammonium cation, alkali metal or an alkaline earth metal cation, most preferably magnesium, sodium or ammonium. The ethoxylated alkyl ether sulfate is generally present in the composition at a concentration of about 0 to about 20 wt. %, more preferably about 0.5 wt. % to 15 wt. %.
The ethoxylated alkyl ether sulfate may be made by sulfating the condensation product of ethylene oxide and C
8-10
alkanol, and neutralizing the resultant product. The ethoxylated alkyl ether sulfates differ from one another in the number of carbon atoms in the alcohols and in the number of moles of ethylene oxide reacted with one mole of such alcohol. Preferred ethoxylated alkyl ether polyethenoxy sulfates contain 12 to 15 carbon atoms in the alcohols and in the alkyl groups thereof, e.g., sodium myristyl (3 EO) sulfate.
Ethoxylated C
8-18
alkylphenyl ether sulfates containing from 2 to 6 moles of ethylene oxide in the molecule are also suitable for use in the invention compositions. These detergents can be prepared by reacting an alkyl phenol with 2 to 6 moles of ethylene oxide and sulfating and neutralizing the resultant ethoxylated alkylphenol. The concentration of the ethoxylated alkyl ether sulfate surfactant is about 1 to about 8 wt. %.
The alkali metal or salt of the C
8
-C
18
linear alkyl benzene sulfonate surfactant is generally used in the instant compositions at a concentration of about 1 to 5 wt. %, more preferably about 2 wt. % to about 4 wt. %. The alkaline earth metal salt (magnesium) of the C
8
-C
18
line
Colgate-Palmolive Company
Nanfeldt Richard E.
Ogden Necholus
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