Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Radical -xh acid – or anhydride – acid halide or salt thereof...
Reexamination Certificate
2001-05-11
2002-08-27
Dees, Jose′ G. (Department: 1616)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Radical -xh acid, or anhydride, acid halide or salt thereof...
C510S235000, C510S405000, C510S422000, C510S434000, C510S477000, C510S505000, C510S506000, C514S709000, C514S723000, C514S724000, C514S738000, C514S772000, C514S784000, C514S975000
Reexamination Certificate
active
06441037
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to an antibacterial liquid dish cleaning composition which is designed to disinfect the surface being treated while maintaining good foaming grease cutting, rinsing and mildness properties.
BACKGROUND OF THE INVENTION
The present invention relates to novel light duty liquid detergent compositions with high foaming and good grease cutting properties as well as disinfecting 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 non ionic 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. 6,147,039 teaches an antibacterial hand cleaning composition having a low surfactant content.
SUMMARY OF THE INVENTION
It has now been found that an antibacterial liquid dish cleaning composition can be formulated with three different anionic surfactants, a zwitterionic surfactant, polyethylene glycol, a hydroxy aliphatic acid and water which has desirable cleaning and foaming properties.
An object of this invention is to provide an antibacterial liquid dish cleaning composition which comprises a sulfate surfactant, two sulfonate anionic surfactants, a zwitterionic surfactant, polyethylene and a hydroxy aliphatic acid, wherein the composition does not contain any silicas, abrasives, acyl isoethionate, 2-hydroxy-4,2′,4′-trichloridiphenyl ether, phosphoric acid, phosphoric acid, boric acid, alkali metal carbonates, alkaline earth metal carbonates, alkyl glycine surfactant, cyclic imidinium surfactant, or more than 3 wt. % of a fatty acid or salt thereof.
Another object of this invention is to provide an antibacterial liquid dish cleaning composition with desirable high foaming and cleaning properties which kills bacteria.
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
This invention relates to an antibacterial liquid dish cleaning composition which comprises approximately by weight:
(a) 10% to 14% of a sodium salt of a C
8
-C
16
linear alkyl benzene sulfonate surfactant;
(b) 10% to 14% of a magnesium salt of a C
8
-C
16
linear alkyl benzene sulfonate surfactant;
(c) 10% to 14% of an ammonium or sodium salt of an ethoxylated C
8
-C
18
alkyl ether sulfate surfactant;
(d) 0.5% to 5% of a zwitterionic surfactant;
(e) 0.5% to 5%, more preferably 0.5% to 4% of a hydroxy containing organic acid;
(f) 0.1% to 7% of polyethylene glycol; and
(g) the balance being water, wherein the composition has a pH of 3 to 4 and has a viscosity of 100 to 1,000 cps, more preferably 200 to 600 cps at 25° C. using a #21 spindle at 20 rpm as measured on a Brookfield RVTDV-II viscometer, wherein the composition does not contain any grease release agents such as choline, chloride or buffering system which is a nitrogenous buffer which is ammonium or alkaline earth carbonate, amine oxide surfactants, guanidine derivates, alkoxylalkyl amines and 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, boric acid, phosphoric acid, ethoxylated nonionic surfactants, amino alkylene phosphonic acid and alkyl polyglucoside surfactants and the composition is pourable and not a gel 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 detergent of this invention are selected from the consisting of water soluble and include the sodium, potassium, ammonium, magnesium 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 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
Arvanitidou Evangelia
Toussaint Christine
Choi Frank
Colgate-Palmolive Company
Dees Jose′ G.
Nanfeldt Richard E.
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