JP3197030B2 - Water-repellent window washer fluid for automobiles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of view during driving (particularly when traveling in rainy weather and traveling on rainy roads or traveling on muddy roads) by washing and imparting water repellency to the front and rear window glasses of an automobile. The present invention relates to a composition for use in a window washer solution for improving the above condition.

[0002]

2. Description of the Related Art Conventional window washer fluids generally provide a view during operation by cleaning dirt, oil films, mud, etc. attached to the glass surface and providing lubricity. It is.

[0003] The washer liquid used at this time is a mixture mainly containing an anionic surfactant, a nonionic surfactant and an alcohol solvent. These are added to the washer tank of the car, applied to the front window glass or the rear window glass, and wiped, so that the dirt and oil film on the glass surface are removed to secure the view during operation, but in practice it is secured. The oil film has not been removed, and it appears that the oil film has been removed by the temporary wettability. However, when the surface active component disappears from the glass surface, the visibility during operation becomes poor again due to the influence of the oil film. Driving in rainy weather, especially in rainy weather at night, is very dangerous because a person loses his / her eyes or headlights of oncoming vehicles are irregularly reflected.

[0004] As a means for completely removing the oil film, it is necessary to polish the glass surface with an acid, alkali or a compound.

However, acids and alkalis have a very bad effect on the rubber and metal parts of the wiper or on the painted surface of a car. In addition, the compound is a manual operation, and requires considerable labor.

[0006] Water repellents for glass are already commercially available, but are all solvent type and cannot be added to washer tanks. In addition, after removing the oil film on the glass surface, the work of applying a water repellent and then wiping it requires considerable labor.

The present invention can be used as a conventional window washer solution without the need for coating with the above components. The present invention relates to a water-repellent window washer solution that solves the above-described problems and secures a safe view during driving when traveling in rainy weather or the like.

[0008]

Means for Solving the Problems The water-repellent window washer liquid of the present invention is a liquid containing a cationic surfactant, a nonionic surfactant, a hydrocarbon, silicone, a silicone derivative and water. is there.

The hydrocarbon includes normal paraffin, isoparaffin, kerosene, spindle oil, machine oil, paraffin wax and the like.

The composition of the water repellent in the present invention is such that the cationic surfactant or the anionic surfactant is 0.01%.
% To 10%, and if necessary, a nonionic surfactant in an amount of 0.1 to 10%.
0.01% to 10%, hydrocarbons are 0.01% to 10%, and silicones and silicone derivatives are 0.0% if necessary.
Add 1% to 10%. An aqueous solution is obtained by dissolving these compositions in water.

As a result, a water-repellent film composed of a hydrocarbon, silicone, or a silicone derivative is formed on the glass surface on a cationic surfactant or on a mixture of a nonionic surfactant and both surfactants. . The water-repellent film is formed by solubilizing the surfactant in silicone or silicone derivative. Since the glass surface has a uniform film thickness, irregular reflection of light is suppressed, and the visibility is improved. This water repellent is applied at any time during operation, and does not require any troublesome work.

As the cationic surfactant used in the present invention, monoalkylammonium chloride,
Examples include dialkylammonium chloride, alkylamine hydrochloride, alkylamine acetate, and other salts.

Examples of the anionic surfactant include fatty acid monoethanolamine acid, fatty acid diethanolamine acid, ammonium sulfonate, other carboxylate and sulfonate.

Examples of the nonionic surfactant include alkylphenol surfactants, higher alcohol surfactants, polyglycols, alkylamides, fatty acid esters, and alkylamide ethylene oxide adducts. Among the above-mentioned surfactants, as for the cationic surfactant, one kind or two or more kinds may be used in combination with the nonionic surfactant.

Examples of the hydrocarbons include normal paraffin, isoparaffin, kerosene, spindle oil, machine oil, paraffin wax, fatty acid ester, animal and vegetable oil, ester wax, acid wax and the like.

Further, silicone and its derivatives are used as additives.

The composition of the water repellent in the present invention is such that the cationic surfactant or the anionic surfactant is 0.01%.
% To 10%, and if necessary, a nonionic surfactant in an amount of 0.1 to 10%.
0.01% to 10%, hydrocarbons 0.01% to 10%, and silicones and silicone derivatives as required.
Add from 01% to 10%. An aqueous solution is obtained by dissolving these compositions in water.

The water repellent prepared in this manner is used in the following procedure. First, when a commercially available washer liquid is already in the washer tank of the automobile, the washer liquid is injected from a nozzle to empty the tank. After emptying, put the water repellent without washing the tank. If it is used for the second time or if the tank does not contain a commercially available washer solution, just add the water repellent. Spray the liquid 2-3 times from the nozzle and apply the wiper.

As a result, on the glass surface, a mixture of a cationic surfactant or a nonionic surfactant and a mixture of both surfactants is added with hydrocarbons, silicone, and silicone.
Thus, a water-repellent film made of a derivative is formed. This water-repellent film is formed by solubilizing the surfactant in silicone and silicone derivatives. Since the glass surface has a uniform film thickness, irregular reflection of light is suppressed, and the visibility is improved. This water repellent is applied at any time during operation, and does not require any troublesome work.

[0017]

EXAMPLES The composition of the water-repellent window washer solution was as follows:
It is as follows.

The following seven types of water repellents A to G were prepared.
[% Is% by weight. ]

A Monoalkylammonium chloride 5% Nonylphenol ethylene oxide adduct 5% Mineral oil [spindle oil] 5% Water 85%

B Dialkylammonium chloride 4% Alkyl ether ethylene oxide adduct 2% Kerosene 2% Water 90%

C monoalkyl ammonium acetate 3% alkylamine ethylene oxide adduct 1% kerosene 2% water-soluble silicone 0.05% water 93.95%

D Monoalkylammonium hydrochloride 0.5% Alkylamine ethylene oxide adduct 1% Nonylphenol ethylene oxide adduct 1% Kerosene 3% Water 94.5%

E Monoalkylammonium chloride ethylene oxide adduct 1% Alkylamide ethylene oxide adduct 1% Mineral oil [amine oil] 0.5% Water 97.5%

F Oleic acid 4% Monoethanolamine 1% Kerosene 5% Water 90%

G Stearic acid 3% Diethanolamine 1% Alkyl amide ethylene oxide adduct 1% Silicone oil 0.5% Normal paraffin oil 5% Water 89.5%

According to the above-mentioned prescription, it was placed in a washer tank of an automobile and checked for water repellency and visibility. As a result,
G gave sufficient water repellency to the glass and was found to have good visibility. In addition, the effect as a washer liquid for removing stains on the glass except in rainy weather was sufficiently recognized.

[0027]

The present invention is as described above, and a water repellent is applied from a window washer tank at any time, so that it becomes very easy. In the conventional washer liquid, the oil film on the glass surface is intended to be removed with a surfactant or a solvent, but the oil film is only temporarily removed by the wetting action of the surfactant.
Surfactants and solvents quickly flow in rainwater, and at the same time lose their wetting action, again reducing visibility. The solvent-type water repellent required application after dropping the oil film on the glass surface with a special compound, and further required wiping. This water repellent is a method in which a film of silicone or fluorine is formed on the glass surface and water is repelled by its hydrophobic action. Although considerable performance is expected, a considerable amount of time is required to manually remove the oil film and apply the water repellent. In addition, since it cannot be put in a washer tank because of the solvent type, there is a danger of toxicity and fire, and further, there is an effect on rubber and coating of the wiper.

The present invention has found a method of repelling rainwater which could not be achieved with the conventional washer liquid, and can save all manual work. Further, the present invention is effective against dirt such as muddy water and dust. All the cleaner properties show a remarkable effect that is incomparable with the conventional washer liquid due to the cleaning action of the surfactant. Spraying the rear window glass and side window glass in advance makes the rearview mirror and side mirror very easy to see. or,
When combined with a washer tank as a system, the same effects can be obtained even when used in rear window glass, side window glass, fender mirrors, side mirrors, and door mirrors.

As described above, it is believed that the water repellent of the present invention is most suitable for securing the visibility of a car, and as a result, it leads to traffic safety. Further, the water repellent of the present invention can be used as a glass cleaner for a sash in ordinary households, and can also be used on a television screen as an antistatic agent and cleaner. In addition, it can be used for painted surfaces of home appliances, such as glass, and plastics, and its application range is quite wide. As described above, the effectiveness of the water-repellent window washer liquid which can be applied to not only glass for automobiles but also general home glass and plastics is extremely large.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI C11D 3:37 3:24)

Claims (3)

(57) [Claims] (1) To secure a view while driving a car,
Accumulated in the washer tank of the moving vehicle, the surface of the automotive glass
A cationic surfactant and a hydrocarbon,
At least one of silicone or silicone derivative
A water-repellent window ossier for automobiles, characterized by comprising an aqueous solution composed of: (2) In order to secure a view while driving a car,
Accumulated in the washer tank of the moving vehicle, the surface of the automotive glass
Cationic surfactant, nonionic surfactant
Silicones or silicone derivatives with surfactants and hydrocarbons
An automotive water-repellent window oscillating solution comprising an aqueous solution composed of at least one of a body and a body . 3. To secure a view while driving a car,
Accumulated in the washer tank of the moving vehicle, the surface of the automotive glass
A nonionic surfactant and a hydrocarbon,
At least one of silicone or silicone derivative
A water-repellent window ossier for automobiles, characterized by comprising an aqueous solution composed of: