Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Liquid composition
Reexamination Certificate
2001-08-02
2001-12-18
Ogden, Necholus (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Liquid composition
C510S475000, C510S476000
Reexamination Certificate
active
06331517
ABSTRACT:
FIELD OF INVENTION
The present invention relates to cleaning composition for ceramic or glass surfaces, wherein the composition includes an anionic surfactant, a hydrophilizing polymer selected from the group consisting of maleic acid-olefin copolymer, or polyalkylene oxide polyacrylic acid and water.
BACKGROUND OF THE INVENTION
Numerous cleaning compositions have been disclosed in various patents. However, a major problem with these cleaning compositions is that the surface exhibits water-marks, smear or spots, when the surface is treated with the cleaning composition and subsequently dried.
U.S. Pat. No. 5,759,986 describes a cleaning composition which allegedly reduces spotting. These compositions employ a silicon polymer and a polymer which makes the treated surface hydropholic.
DE-A-2161591 teaches a cleaning composition which contains an amino containing polymer.
WO00/77143A1 describes a surface substantive polymer which makes the treated surface hydrophilic, wherein the polymer is a copolymer of N-vinylimidazole N-vinylpyrrolidone (PVPVI), a quaternized vinyl pyrrolidone/dialkylaminoalkyl acrylate or methacrylate copolymer, or a polyvinyl pyridine N-oxide polymer.
SUMMARY OF THE INVENTION
The present invention relates to a glass cleaning composition comprising an anionic surfactant, a hydrophilizing maleic acid-olefin copolymer and water, wherein the composition does not contain nonionic surfactants containing ethoxylate groups, silicon containing polymers, amino containing polymers, copolymers of N-vinylimidazole N-vinylpyrrolidone (PVPVI), or quaternized vinyl pyrrolidone/dialkylaminoalkyl acrylate or methacrylate copolymers, or polyvinyl pyridine N-oxide polymers.
It is an object of the instant invention to provide a glass cleaning composition, wherein the hydrophilizing polymer renders the treated surface hydrophilic such that the contact angle of water on the treated surface is less than 40°, more preferably less than 30° and most preferably less than 20°.
A further object of the instant invention is to provide a glass cleaning composition which renders the treated surface free of streaks, water-marks, smear and spots, after the surface has been treated with the cleaning composition and subsequently dried.
DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to a ceramic or glass cleaning composition which renders the surface being treated hydrophilic, wherein the composition comprises approximately by weight:
(a) 0.01% to 10% of an anionic surfactant containing an alkyl group;
(b) 0.01% to 2% of a hydrophilizing polymer which is a maleic acid-olefin copolymer, wherein the polymer can be partially esterified by polyethylene glycol, or partially esterified by an amphiphilic moiety, or an acrylic acid polymer partially esterified by polyethylene glycol, or partially esterified by an amphiphilic moiety; and
(c) the balance being water, wherein the composition does not contain an amino containing polymer, a silicon containing polymer, a nonionic surfactant containing ethoxylate groups, N-vinylimidazole N-vinylpyrrolidone (PVPVI), or quaternized vinyl pyrrolidone/dialkylaminoalkyl acrylate or methacrylate copolymers, or polyvinyl pyridine N-oxide polymers.
The anionic sulfonate surfactants which may be used in the composition of this invention are water soluble and include the 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, ethoxylated alkyl ether sulfates and mixtures thereof. The preferred anionic sulfonate surfactant is an alkyl ethoxylated alkyl ether sulfate surfactant.
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 poly-sulfonates.
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 C8-18 ethoxylated alkyl ether sulfate surfactants have the structure
R—(OCH
2
CH
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
or C
12-16
and M is an ammonium cation or a metal cation, most preferably sodium.
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 (3EO) sulfate, or sodium lauryl (2EO) 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.%.
One example of the hydrophilizing polymer is a maleic acid-olefin copolymer produced by BASF as EP 2040 characterized by the formula
wherein R is an alkyl group having 9 to 15 carbon atoms, preferably 13 carbon atoms, y is a number from 3 to 20, preferably 5 to 12, more preferably 7 and n is a number from 15 to 150, preferably 25 to 100 and the average degree of esterification of the maleic acid conomoner by the —(CH
2
CH
2
O)y—R group is 10 mole % to 50 mole %.
The anionic surfactant and the hydrophilizing copolymer are solubilized in the water. To the composition can also be added water soluble hydrotropic salts including sodium, potassium, ammonium and mono-, di- and triethanolammonium salts. While the aqueous medium is primarily water, preferably said solubilizing agents are included in order to control the viscosity of the liquid composition and to control low temperature cloud clear properties. Usually, it is desirable to maintain clarity to a temperature in the range of 5° C. to 10C. Therefore, the proportion of solubilizer generally will be from 1 % to 15%, preferably 2% to 12%, most preferably 2% to 8%, by weight of the detergent composition with the proportion of ethanol, when present, being 5% of weight or less in order to provide a composition having a flash point above 46° C. Preferably the solubilizing ingredient will be a mixture of ethanol and either sodium xylene sulfona
Colgate Palmolive Co.
Nanfeldt Richard E.
Ogden Necholus
LandOfFree
Cleaning composition containing a hydrophilizing polymer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cleaning composition containing a hydrophilizing polymer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cleaning composition containing a hydrophilizing polymer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2561299