Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Liquid composition
Reexamination Certificate
2001-01-09
2001-06-05
Ogden, Necholus (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Liquid composition
C510S221000, C510S235000, C510S424000, C510S433000, C510S470000, C510S490000, C510S499000, C510S508000
Reexamination Certificate
active
06242411
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to novel light duty liquid detergent compositions with high foaming and good grease cutting properties.
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. In U.S. Pat. No. 3,658,985 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 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 detergent properties can be formulated with lauryol ethylene diaminetriacetate chelating surfactant, an alpha olefin sulfonate, optionally, a zwitterionic surfactant, an ethoxylated nonionic surfactant, magnesium ions, at least one solubilizing agent, an alkyl polyglucoside surfactant, C
12
-C
14
fatty acid monoalkanol amide and water.
Accordingly, one object of this invention is to provide novel, high foaming, light duty liquid detergent compositions containing an alpha olefin sulfonate surfactant and lauryol ethylene diamine triacetate which has both good grease cutting and excellent disinfecting properties on hard surfaces.
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 detergent of this invention comprises an alpha olefin sulfonate, an ethoxylated nonionic surfactant, lauryol ethylene diaminetriacetate chelating surfactant, at least one solubilizng agent, an alkyl polyglucoside surfactant, C
12
-C
14
fatty acid mono alkanol amide, magnesium ions, and water, wherein the composition does not contain a glycol ether solvent, a mono- or di-saccharides a polyoxyalkylene glycol fatty acid, a builder salt, a polymeric thickener, a clay, 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 light duty liquid detergent which comprises approximately by weight:
(a) 8% to 20% of an ethoxylated nonionic surfactant;
(b) 10% to 24% of an alpha olefin sulfonate surfactant;
(c) 2% to 12% of a zwitterionic surfactant;
(d) 1% to 12% of an alkyl polyglucoside surfactant;
(e) 0.25% to 6%, more preferably 0.5% to 4% of a C
12
-C
14
fatty acid monoalkanol amide;
(f) 0 to 15%, more preferably 0.25% to 8% of at least one solubilizing agent;
(g) 0.1% to 3%, more preferably 0.25% to 2.5% of lauryol ethylene diaminetriacetate; and
(h) the balance being water wherein the composition does not contain a glycol ether solvent, a polyoxyalkylene glycol fatty acid, a mono- or di-saccharides, a builder salt, a polymeric thickener, a clay, ethylene diamine tetraacetic acid alkali metal salt, hydroxyethylene diamine tetra acetic acid sodium salt, abrasive, silicas, triclosan, alkaline earth metal carbonates, alkyl glycine surfactant or cyclic imidinium surfactant.
The present invention contains 10 wt. % to 24 wt. %, more preferably 12 wt. % to 22 wt. % of an alpha olefin sulfonates, including long-chain alkene sulfonates, long-chain hydroxyalkane sulfonates or mixtures of alkene sulfonates and hydroxyalkane sulfonates. These alpha olefin sulfonate surfactants may be prepared in a known manner by the reaction of sulfur trioxide (SO
3
) with long-chain olefins containing 8 to 25, preferably 12 to 21 carbon atoms and having the formula RCH═CHR
1
where R is a higher alkyl group of 6 to 23 carbons and R
1
is an alkyl group of 1 to 17 carbons or hydrogen to form a mixture of sultones and alkene sulfonic acids which is then treated to convert the sultones to sulfonates. Preferred alpha olefin sulfonates contain from 14 to 16 carbon atoms in the R alkyl group and are obtained by sulfonating an a-olefin.
The nonionic surfactant is present in amounts of about 8 to 20%, preferably 10 to 18% by weight of the composition and provides superior performance in the removal of oily soil and mildness to human skin. The water soluble nonionic surfactants utilized in this invention are commercially well known and include the primary aliphatic alcohol ethoxylates, secondary aliphatic alcohol ethoxylates, alkylphenol ethoxylates and ethylene-oxide-propylene oxide condensates on primary alkanols, such a Plurafacs (BASF) and condensates of ethylene oxide with sorbitan fatty acid esters such as the Tweens (ICI). The nonionic synthetic organic detergents generally are the condensation products of an organic aliphatic or alkyl aromatic hydrophobic compound and hydrophilic ethylene oxide groups. Practically any hydrophobic compound having a carboxy, hydroxy, amido, or amino group with a free hydrogen attached to the nitrogen can be condensed with ethylene oxide or with the polyhydration product thereof, polyethylene glycol, to form a water-soluble nonionic detergent. Further, the len
Connors Thomas
D'Ambrogio Robert
Colgate-Palmolive Co.
Nanfeldt Richard E.
Ogden Necholus
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