Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2000-10-12
2001-04-10
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...
C510S426000, C510S428000, C510S432000, C510S466000, C510S470000, C510S503000, C510S506000
Reexamination Certificate
active
06214781
ABSTRACT:
FIELD OF INVENTION
This invention relates to a light duty liquid cleaning composition which imparts mildness to the skin and which demonstrates improved sensory attributes for the hands designed in particular for dishware and which is effective in grease and is high foaming.
BACKGROUND OF THE INVENTION
The present invention relates to light duty liquid detergent compositions with high foaming properties, which contains mixtures of anionic surfactants, amine oxide surfactant, alkyl polyglucoside surfactant and an oxyethylene functional organosilane.
The prior art is replete with light duty liquid detergent compositions containing nonionic surfactants in combination with anionic and/or betaine surfactants wherein the nonionic detergent is not the major active surfactant, as shown in U.S. Pat. No. 3,658,985 wherein an anionic 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 0.8-20% 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 based on the alkali metal silicate content and containing five basic ingredients, namely, 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 property of these detergent compositions is 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.
U.S. Pat. Nos. 5,326,557 and 5,435,996 disclose oxyethylene functional organic silanes for use in body care formulations.
SUMMARY OF THE INVENTION
It has now been found that an acid light duty liquid detergent can be formulated with a mixture of anionic surfactants, amine oxide surfactant alkyl polyglucoside surfactant, oxyethylene functional organosilane and which has desirable cleaning properties and mildness to the human skin.
An object of this invention is to provide a light duty liquid detergent composition which comprises a sulfate surfactant, at least one sulfonate anionic surfactant, an amine oxide surfactant, an alkyl polyglucoside surfactant and an oxyethylene functional organosilane, wherein the composition does not contain any alkyl monoalkanolamides, polymeric thickeners, stearyl alcohol, mineral oil, sorbitol, triethanol amine, N-alkyl aldonamide, zwitterionic surfactant, silicas, abrasives, alkali metal carbonates, alkaline earth metal carbonates, alkyl glycine surfactant or a cyclic imidinium surfactant.
Additional objects, advantages and novel features of the invention will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following or may be learned by practice of the invention. The objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.
DETAILED DESCRIPTION OF THE INVENTION
The light duty liquid compositions of the instant invention comprises approximately by weight:
(a) 0.5% to 8%, more preferably 1% to 6% of an alkali metal salt of an anionic sulfonate surfactant;
(b) 6% to 18%, more preferably 8% to 12% of an alkali metal salt of a C
8-18
ethoxylated alkyl ether sulfate and/or an C8-18 alkyl ether sulfate;
(c) 4% to 15%, more preferably 6% to 12% of an alkaline earth metal salt of an anionic sulfonate surfactant;
(d) 1% to 13%, more preferably 2% to 9% of an amine oxide surfactant;
(e) 5% to 20%, more preferably 8% to 16% of an alkyl polyglucoside surfactant;
(f) 0 to 10% of at least one solubilizing agent;
(g) 0.1% to 6%, more preferably 0.5% to 5% of an oxyethylene functional organosilane which functions as a mildness enhancing agent; and
(h) the balance being water.
The instant compositions do not contain an N-alkyl aldonamide, choline chloride or buffering system which is a nitrogenous buffer which is ammonium or alkaline earth carbonate, guanidine derivates, alkoxylalkyl amines, alkyleneamines, C
3
-C
7
alkyl and alkenyl monobasic and dibasic acids such as C
4
-C
7
aliphatic carboxylic diacids which do not contain a hydroxy group, phosphoric acid, amino alkylene phosphonic acid and the composition is pourable and is not a gel and the composition has a complex viscosity at 1 rads-1 of less than 0.4 Pascal seconds.
The anionic sulfonate surfactants which may be used in the instant composition of this invention are water soluble and include the magnesium sodium, potassium, ammonium and ethanolammonium salts of linear C
8
-C
16
alkyl benzene sulfonates; C
10
-C
20
paraffin sulfonates, alpha olefin sulfonates containing about 10-24 carbon atoms and C
8
-C
18
alkyl sulfates and mixtures thereof. The preferred anionic sulfonate surfactant is a C
12-18
paraffin sulfonate.
The paraffin sulfonates may be monosulfonates or di-sulfonates and usually are mixtures thereof, obtained by sulfonating paraffins of 10 to 20 carbon atoms. Preferred paraffin sulfonates are those of C
12-18
carbon atoms chains, and more preferably they are of C
14-17
chains. Paraffin sulfonates that have the sulfonate group(s) distributed along the paraffin chain are described in U.S. Pat. Nos. 2,503,280; 2,507,088; 3,260,744; and 3,372,188; and also in German Patent 735,096. Such compounds may be made to specifications and desirably the content of paraffin sulfonates outside the C
14-17
range will be minor and will be minimized, as will be any contents of di- or polysulfonates.
Examples of suitable other sulfonated anionic detergents are the well known higher alkyl mononuclear aromatic sulfonates, such as the higher alkylbenzene sulfonates containing 9 to 18 or preferably 9 to 16 carbon atoms in the higher alkyl group in a straight or branched chain, or C
8-15
alkyl toluene sulfonates. A preferred alkylbenzene sulfonate is a linear alkylbenzene sulfonate having a higher content of 3-phenyl (or higher) isomers and a correspondingly lower content (well below 50%) of 2-phenyl (or lower) isomers, such as those sulfonates wherein the benzene ring is attached mostly at the 3 or higher (for example 4, 5, 6 or 7) position of the alkyl group and the content of the isomers in which the benzene ring is attached in the 2 or 1 position is correspondingly low. Preferred materials are set forth in U.S. Pat. No. 3,320,174, especially those in which the alkyls are of 10 to 13 carbon atoms.
The C
8-18
ethoxylated alkyl ether sulfate surfactants 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
12-1
Dalimier Chantal
Gambogi Joan
Paye Marc
Zocchi Germaine
Colgate - Palmolive Company
Nanfeldt Richard
Ogden Necholus
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