Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2001-11-08
2002-09-24
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...
C510S235000, C510S421000, C510S424000, C510S428000, C510S475000, C510S476000, C510S503000
Reexamination Certificate
active
06455482
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to a light duty liquid cleaning composition having enhanced viscosity and which imparts enhanced mildness to the skin and improved foam properties and is also designed in particular for effective removal of grease soil from the dishware and for leaving the rinsed surfaces of the dishware with a shiny appearance.
BACKGROUND OF THE INVENTION
The present invention relates to novel light duty liquid detergent compositions with enhanced viscosity and improved high foaming properties, containing at least one olefin sulfonate surfactant, an ammonium or alkali metal salt of an ethoxylated alkyl ether sulfate surfactant, a paraffin sulfonate, a complex of a crosslinked polymer formed from an alkyl vinyl ether/maleic anhydride copolymer and a polyol compound, and, optionally, an amine oxide, and water.
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.
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 effect 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. 4,671,895 teaches a liquid detergent composition containing an alcohol sulfate surfactant, a nonionic surfactant, a paraffin sulfonate surfactant, an alkyl ether sulfate surfactant and water.
U.S. Pat. No. 4,450,091 discloses high viscosity shampoo compositions containing a blend of an amphoteric betaine surfactant, a polyoxybutylene polyoxyethylene nonionic detergent, an anionic surfactant, a fatty acid alkanolamide and a polyoxyalkylene glycol fatty ester. But, none of the exemplified compositions contains an active ingredient mixture wherein the nonionic detergent is present in major proportion, 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.
U.S. Pat. Nos. 4,675,422; 4,698,181; 4,724,174; 4,770,815 and 4,921,942 disclose alkyl succinamates but the compositions are non related to light duty liquid compositions.
However, none of the above-cited patents discloses a liquid detergent composition containing at least one olefin sulfonate surfactant, an alkali metal or ammonium salt of an ethoxylated alkyl ether sulfate surfactant, a paraffin sulfonate surfactant and a complex of an alkyl vinyl ether/maleic anhydride copolymer with a polyol compound and optionally, an amine oxide surfactant, betaine surfactant, an alkyl monoalkanol amide and/or an ethoxylated alkyl monoalkanol amide, and water, wherein the composition does not contain any low molecular weight mono- or di-glucoside, abrasives, silicas, alkaline earth metal carbonates, alkyl glycine surfactant, cyclic imidinium surfactant, alkali metal carbonates or more than 3 wt. % of a fatty acid or its salt thereof.
SUMMARY OF THE INVENTION
It has now been found that a light duty liquid composition can be made which has desirable cleaning properties together with enhanced viscosity and improved high foaming properties.
An object of this invention is to provide a novel light duty liquid detergent composition containing at least 3 to 24 wt. % one olefin sulfonate surfactant, at least one 3 to 30 wt. % of second surfactant selected from the group consisting of linear alkyl benzene sulfonates, paraffin sulfonates, ethoxylated alkyl ether sulfates, alkyl mono alkanol amides and amine oxides and mixtures thereof, 2% to 15% of a crosslinked polymer which is formed from crosslinked reaction product of a polyol compound and an alkyl vinyl ether/maleic anhydride copolymer, 0.1% to 15% of a solubilizing system and water wherein the composition does not contain any silicas, abrasives, alkali metal carbonates, alkaline earth metal carbonates, alkyl glycine surfactant, cyclic imidinium surfactant, low molecular weight mono- or di-glucoside organoaluminum containing compounds, organo titanium containing compounds, triethylene tetramine hexaacetic acid, imidazolenes, or more than 3 wt. % of a fatty acid or salt thereof.
Another object of this invention is to provide a novel light duty liquid detergent with desirable high foaming and cleaning properties which is very mild to the human skin.
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 comprise approximately by weight:
(a) 2.0% to 12%, more preferably 3% to 10% of a crosslinked polymer which comprises the crosslinked reaction product of an alkyl vinyl ether/maleic anhydride copolymer with a polyol compound, wherein the weight ratio of the alkyl vinyl ether/maleic anhydride copolymer to the polyol compound is about 1:4 to about 4:1;
(b) 6% to 15% of an alkali metal salt of an alpha olefin sulfonate surfactant;
(c) 3% to 9% of an alkali metal salt of a paraffin sulfonate surfactant;
(d) 6% to 15% of an ammonium or alkali metal salt of an ethoxylated alkyl ether sulfate surfactant;
(e) 3% to 9% of an alkali metal salt of a
D'Ambrogio Robert
Dixit Nagaraj
Hassan Mahmoud
Colgate-Palmolive Company
Nanfeldt Richard E.
Ogden Necholus
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