JP3041763B2 - Method for producing rust remover for wheel and rust remover for wheel obtained by this method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the maintenance of tire wheels for vehicles, and more particularly to a rust remover for wheels and a method for producing the rust remover for wheels.

[0002]

[Prior art]

[0003] In a tire wheel of a vehicle, various oils and mud adhere to the surface thereof, and fine iron dust adheres to the surface so as to penetrate. This is because the wheel is made of a relatively soft material, and fine iron dust is generated and scattered when the disk brake mechanism disposed near the wheel is operated. When the fine iron dust adheres to the wheel, it oxidizes and generates rust at the adhered portion. Therefore, various types of cleaners have been used so far to maintain tire wheels of vehicles.

[0004]

However, the conventional cleaner is effective for various oils and mud other than rust, but has little effect on rust. That is,
Since conventional cleaners did not take into account the special oxidation situation of tire wheels, after removing oil or mud, rust removal must be performed with a separate agent after dropping oil or mud. did not become. In this case, if a cleaner mixed with a compounding agent is used, rust can be removed, but at the same time, a new problem arises in that the wheel itself, which is a soft material, is damaged.

There is also a method of removing rust by subjecting a portion where rust is generated to an acid treatment, but this method also causes a problem that the soft material wheel itself is damaged at the same time as the rust is removed. Would. Therefore, although it is possible to use a cleaner mixed with a compounding agent or perform an acid treatment, it is also possible to take a long time so as not to damage the wheel itself, but to work slowly, but this work requires extremely complicated work by skilled workers. At the same time, there is a problem that sufficient rust cannot be removed.

The present invention is proposed to solve such a problem. A rust removing agent for a wheel capable of efficiently removing rust while removing oil and mud attached to the wheel without damaging the wheel itself. And a method for producing a rust remover for wheels.

[0007]

SUMMARY OF THE INVENTION The present invention has the following objects to attain the above object. After adding carboxylic acid or glycolic acid to ion-exchanged water, an organic amine, amine hydroxide and aqueous ammonia are added, and the mixture is stirred and reacted for about 20 minutes to produce a carboxylate or glycolate, and then a secondary alcohol ethoxylate And a higher alcohol, an ethoxylate, and an alcohol-based surfactant, and then a polyhydric alcohol, followed by stirring and mixing for about 30 minutes.

[0008] 2. A rust removing agent for a wheel, obtained by the method for producing a rust removing agent for a wheel and containing a carboxylate or a glycolate.

[0009]

[0010]

Embodiments of the present invention will be described below. In the rust remover for a wheel according to the first embodiment of the present invention, carboxylic acid (for example, thioglycolic acid) or glycolic acid is selected as the first component. This is because rust, which is an iron oxide, is preferentially reacted and dissolved in the iron base metal). Therefore, rust can be removed without damaging the wheel body. In addition, carboxylic acid (for example, thioglycolic acid) becomes purple when it reacts with rust, which is an iron oxide. Therefore, it is easy to confirm the effect during the work of rust removal.

Next, an organic amine, an amine hydroxide and aqueous ammonia are selected as the second component, which is determined by selecting a carboxylic acid (for example, thioglycolic acid) or glycolic acid as the first component. This is to remove the danger to the wheel and to avoid the adverse effect of rust removal, which causes oxidation of the wheel due to the residual adhesion of the first component. In other words, a strong acidic or alkaline base may give a strong irritation to the skin etc. by contact, and when applied to the target site for rust removal, rust is generated on the applied surface after a lapse of time. There is a risk that it will be done. Therefore, the second component is added to the first component and mixed with stirring to cause a neutralization reaction.

Next, a secondary alcohol ethoxylate, a higher alcohol, an ethoxylate and an alcohol-based surfactant are selected as the third component. These are mainly dissolved in the aqueous solution by the action of the surfactant to increase the surface tension. It is for lowering. By using the third component in this way, the permeability as a rust remover is improved,
Pinhole-shaped fine rust pierced into the wheel can be reliably removed.

The polyhydric alcohol selected as the fourth component also improves the permeability as a rust remover similarly to the third component, and reliably removes pinhole-shaped fine rust pierced into the wheel. Is to be able to do it. In addition, the third component and the fourth component have strong cleaning properties against oil and the like, and can efficiently clean the treated surface together with rust removal by the first component and the second component. Also,
Ion-exchanged water is selected as the fifth component, for diluting the rust remover to an appropriate concentration.

Next, a method of manufacturing a rust remover for a wheel according to a second embodiment of the present invention will be described. First,
After adding carboxylic acid or glycolic acid to the ion-exchanged water, add an organic amine, an amine hydroxide, and aqua water to add about 2
The mixture is stirred for 0 minutes to produce a carboxylate or glycolate. The reaction mechanism at this time is as follows: R-COOH + NH ₄ OH → R-COONH ₄ + H ₂ O
(R: alkyl group) Thus, a compound carboxylate can be obtained. Thereafter, a secondary alcohol ethoxylate, a higher alcohol, an ethoxylate, and an alcohol-based surfactant are added, and then a polyhydric alcohol is added, followed by stirring and mixing for about 30 minutes to obtain a rust remover for wheels.

The rust remover for a wheel manufactured in this manner has a high viscosity and a strong adhesion to a coated surface. Therefore, it easily adheres to the wheel surface and hardly runs off, and can be applied thickly on the application surface, so that the rust removing effect is high. At the same time, oil and mud adhering to the wheel can be removed. And since it has a strong penetrating power, it is not necessary to wash dirt on the rust-removing surface in advance, and the rust is efficiently dissolved, and after the rust-removing work is completed, it can be easily washed off with water.

Here, the method of using the wheel rust remover will be described. First, a rust removing agent is applied or sprayed on a target portion of the wheel with a brush, a brush, a spray, or the like. Then, the rust portion dissolves and eventually turns purple, so it can be confirmed that the rust removal effect is exhibited. The rust flows down in this state, but it goes without saying that the spatter can be further removed by applying water. The rest should just dry. This wheel rust remover is designed exclusively for wheels, but other parts of the vehicle where rust is occurring,
Needless to say, it can be used for rust removal other than for vehicles.

[0017]

EXAMPLES The weight of each component constituting the wheel rust remover according to the present invention is as follows. 1. Carboxylic acid or glycolic acid: about 25 parts 2. Organic amine, amine hydroxide and ammonium water: about 25 parts 3. Secondary alcohol ethoxylate and higher alcohol and ethoxylate and alcohol-based surfactant: about 2 parts 4. Polyhydric alcohol: about 10 parts Ion-exchanged water: about 35 parts, and when used in actual use, it was proved by experiments that it was the most effective. It goes without saying that there may be some differences in the weight ratios, provided that at least an appropriate carboxylate or glycolate is formed.

Next, the method for producing a wheel rust remover according to the present invention is as follows. About 35 parts of ion-exchanged water is put into a resin (for example, polyvinyl chloride) tank. 2. Next, about 25 parts of carboxylic acid or glycolic acid is added, and the mixture is stirred for about 5 minutes with a stirrer of about 350 to 1000 RPM / min. 3. While stirring, about 25 parts of an organic amine, an amine hydroxide and aqueous ammonia are added, and the mixture is stirred for about 20 minutes until the exothermic neutralization reaction is completed. At this time, PH (hydrogen ion concentration)
And adjust so that PH = 6-8 neutral. Thus, a carboxylate or glycolate is formed. 4. Then, with further stirring, about 2 parts of the secondary alcohol ethoxylate and higher alcohol and ethoxylate and the alcohol-based surfactant and about 10 parts of the polyhydric alcohol are added until the solution becomes uniform (until it becomes almost transparent). ) Stir for approximately 30 minutes. It goes through the process of.

[0019]

As described above, the wheel rust removers of the first and second aspects have high viscosity and high adhesion to the application surface. Therefore, it easily adheres to the wheel surface and hardly runs off, and can be applied thickly on the application surface, so that the rust removing effect is high. At the same time, oil and mud adhering to the wheel can be removed. In addition, since the penetrating power is strong, it is not necessary to wash dirt on the rust-removing surface before the rust-removing work, so that the rust can be efficiently dissolved and the rust-removing work can be easily washed off with water.
In addition, since the wheel rust remover is a neutral solution, it is highly safe and can prevent an unexpected situation due to work. According to the method for producing a wheel rust remover of the third aspect, mass production can be easily performed at low cost without increasing the scale of production equipment.

Claims (2)

(57) [Claims] After adding a carboxylic acid or a glycolic acid to ion-exchanged water, an organic amine, an amine hydroxide and an aqueous ammonia are added, and the mixture is stirred and reacted for about 20 minutes to produce a carboxylate or a glycolate. A method for producing a rust remover for wheels, comprising adding a secondary alcohol ethoxylate, a higher alcohol, an ethoxylate, and an alcohol-based surfactant, and then adding a polyhydric alcohol and stirring and mixing for about 30 minutes. 2. A rust remover for a wheel, obtained by the method according to claim 1, wherein the rust remover contains a carboxylate or glycolate.