JP3200081B2 - Aerosol paint stock solution composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an undiluted aerosol paint composition, and its object is to reduce the amount of an organic solvent to be incorporated, prevent environmental destruction, have high safety, and adhere to an object to be coated. An aerosol paint stock solution composition that can be easily used by anyone without dripping efficiently and that can be used for thick coating with excellent gloss, tackiness, drying properties, water resistance, alkali resistance, and stability of the coating film. Is to provide.

[0002]

2. Description of the Related Art In recent years, it has been a problem that organic solvents are involved in global warming, and the reduction of organic solvents in order to minimize the effects on the environment and the human body has been considered. Has come to be desired.

[0003] The aerosol paints that are currently widely used require dripping or multi-coating on an object to be applied, and have required skill in order to apply them neatly. Accordingly, there has been no aerosol paint that can be easily and neatly applied without any sagging as a paint for general household use, and creation thereof has been desired.

(Prior art) Conventionally, aerosol paint stock solutions containing cellulose derivatives contain a large amount (70 to 85% by weight in the paint) of a solvent for atomization of mist during spraying. In addition, since the solid paint content is as small as 15 to 30% by weight, it is necessary to increase the spray amount to hide the base. Therefore,
This undiluted aerosol paint composition contains a large amount of solvent (70-85% by weight in the paint) for atomization of mist during spraying, and destroys the environment in order to increase the amount of spray to hide the base. There was a problem.

[0005] In addition, when the spray amount is large, it is easy to drip, and in order to make the drip as difficult as possible, a low flash point organic solvent must be used, and ketones, esters, alcohols,
Since a solvent having a high dissolving power such as an aromatic solvent is required, there is a high risk of ignition.

Further, since a large amount of a solvent is blended, the solid content of the paint is small, the adhesion efficiency is poor, and the film is not easily coated because of its easy dripping. In addition, the formed coating film is very thin and cannot be thickly applied. It was necessary to finish three coats. Therefore, it is difficult to say that an aerosol paint that can be easily used by anyone as a household paint because skill is required to apply it neatly.

[0007] Further, as for the acrylic resin-based aerosol paint stock solution composition containing no cellulose derivative, aerosol paints which use chlorofluorocarbon or a chlorinated solvent or are made water-soluble are non-dangerous substances under the Fire Service Law. Although well-known as aerosol paints, they have a problem of corrosion of cans because they contain a large amount of water.

[0008]

In view of the above circumstances, the industry has reduced the amount of organic solvents to be blended to prevent environmental destruction,
In addition, the safety is high without being restricted by the Fire Service Law, etc.
In addition, there has been a demand for an aerosol paint that can be easily and neatly applied by anybody without the necessity of double coating or the like and without dripping on an object to be applied.

[0009]

The aerosol paint stock solution composition according to the present invention comprises 10 to 45% by weight of styrene, a methacrylic acid ester of an alkyl alcohol having 1 to 8 carbon atoms and an alkyl alcohol having 1 to 8 carbon atoms. 10 to 80% by weight of at least one monomer selected from acrylates, and at least 1.5 to at least one monomer selected from methacrylates and acrylates having hydroxyl groups in the molecule. A polymer obtained by using 30% by weight and a monomer having a carboxylic acid in a molecule of 0.2 to 5% by weight as an essential component, a cellulose derivative, and an organic solvent composed of at least one kind, having a flash point of An aerosol paint stock solution composition comprising an organic solvent having a temperature of 40 ° C. or more and less than 70 ° C. and a pigment as essential components, wherein the total amount of organic solvent contained in the composition is aerosol paint stock solution. 0.1 to 30% by weight of another copolymerizable monomer as an essential component of a polymer of the aerosol paint stock solution or 40% by weight or less of the polymer of the aerosol paint stock solution. Except for using the obtained polymer, the aerosol paint stock solution composition is the same as this aerosol paint stock solution composition.

Hereinafter, the constitution of the aerosol paint stock solution composition according to the present invention will be described in detail. (Constitution of the Invention) An aerosol paint stock solution composition according to the present invention comprises a polymer,
Cellulose derivatives, organic solvents, and pigments are essential components.

This polymer is a polymer obtained by using the following monomers as essential components. 10 to 45% by weight, preferably 15 to 40% by weight as a monomer which is an essential component
Of styrene is used. The reason for this is that if the amount of styrene is less than 10% by weight, the resulting product will have poor chemical resistance, decrease the gloss, and increase the production cost. If the ratio exceeds the above range, the weather resistance of the obtained product will be reduced and the gasoline resistance will also be inferior.

Further, at least one monomer selected from methacrylic acid esters of alkyl alcohols having 1 to 8 carbon atoms and acrylic acid esters of alkyl alcohols having 1 to 8 carbon atoms is used in an amount of 10 to 80% by weight. . This carbon number 1
Methacrylic acid esters of alkyl alcohols of 8 to 8 and acrylic acid esters of alkyl alcohols having 1 to 8 carbon atoms form a resin skeleton together with the styrene.
80% by weight, preferably 35-55% by weight, and 2 so that the desired resin hardness can be obtained.
At least one kind of monomer is used in combination. Examples of the methacrylic acid ester of the alkyl alcohol having 1 to 8 carbon atoms include methyl methacrylate, ethyl methacrylate,
Examples thereof include n-propyl methacrylate, isopropyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, and 2-ethylhexyl methacrylate.

Examples of the acrylates of alkyl alcohols having 1 to 8 carbon atoms include methyl acrylate, ethyl acrylate, n-propyl acrylate, isopropyl acrylate, n-butyl acrylate, isobutyl acrylate and 2-butyl acrylate. Ethylhexyl and the like can be exemplified.

In the present invention, 1.5 to 30% by weight, more preferably 2.5 to 30% by weight of one or more monomers selected from methacrylates and acrylates having a hydroxyl group in the molecule is used. . The reason is that if the content is less than 1.5% by weight, the effect obtained by the above-mentioned monomer is improved, that is, by introducing an OH group into the polymer, the compatibility with the cellulose derivative is improved, and the gasoline resistance of the coating film is improved. This is because the effect cannot be exhibited. On the other hand, if it exceeds 30% by weight, the compounding amount becomes too large and a problem is caused in water resistance, and in either case, it is not preferable. Examples of the methacrylate and acrylate having a hydroxyl group in the molecule include 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, 2-hydroxyethyl acrylate, and 2-hydroxypropyl acrylate.

The amount of the monomer having a carboxylic acid in the molecule is 0.1%.
2-5% by weight are used. The reason is that if the amount is less than 0.2% by weight, the compounding amount is too small, and if it exceeds 5% by weight, the compounding amount is too large to give an appropriate acid value to the intended resin, and the resin pigment This is because the affinity cannot be improved, and in either case, it is not preferable. Monomers having this carboxylic acid in the molecule include acrylic acid,
Examples thereof include methacrylic acid and itaconic acid.

In the present invention, copolymerizable monomers other than the above-mentioned essential components may be used as needed. Examples of copolymerizable monomers include esters of a saturated or unsaturated alcohol having 9 or more carbon atoms such as stearyl acrylate and stearyl methacrylate with acrylic acid or methacrylic acid, acrylonitrile, methacrylonitrile, vinyl acetate, and vinyl alcohol. And carboxylic acid esters, acrylamide, methacrylamide, acrylamide such as N-butoxymethylacrylamide, or methacrylamide derivatives, dimethyl fumarate, dibutyl fumarate, vinyltoluene, and the like. This copolymerizable monomer is a monomer that introduces a polar functional group into the resin, such as acrylamide, or becomes a part of the resin skeleton, such as vinyl acetate, dimethyl fumarate, and dibutyl fumarate. Therefore, it is not an essential component of the present invention and its amount is not particularly limited. However, in order to obtain the performance characteristic of the acrylic resin of the present invention, the amount of 0 to 30% by weight is preferable.

The composition containing these monomers as components is polymerized by a conventional method to obtain a polymer which is one of the essential components of the present invention. This polymer can be suitably used in the present invention, whether it is a solution polymer containing an organic solvent or the like or a powder polymer. In the present invention, the reason that the polymer is composed of the specific compound of each of the above monomers is that an excellent paint which can satisfy both performance as a paint, prevention of environmental destruction, safety and ease of use is not created. This is based on experimental knowledge obtained by the inventors' earnest research.
That is, only when a polymer composed of this specific monomer blend, cellulose, a specific solvent and a pigment are combined, the performance as a paint is excellent, which contributes to the prevention of environmental destruction, and the safety and ease of use. It is an excellent paint that can achieve the balance of the quality.

The amount of the polymer is preferably 25 to 45% by weight (in terms of solid content), and more preferably 30 to 40% by weight, based on 100% by weight of the aerosol paint stock solution composition. The reason for such a blending amount is that the adhesion is not significantly reduced, the sprayability is good when sprayed, and a clear coating film is obtained. It also enables the use of a high flash point solvent having low flammability, so that a high solid content (more than 60% by weight) paint with a high total solid content including this polymer can be applied without dripping. For this reason, the blending amount of 25 to 45% by weight is required.

Examples of the fibrous derivative which is an essential component of the present invention include nitrocellulose, acetylcellulose, acetylbutyrylcellulose, ethylcellulose and the like, and more preferably nitrocellulose and acetylbutyrylcellulose.

The compounding amount of the cellulose derivative is preferably 2 to 10% by weight, more preferably 4 to 8% by weight, based on 100% by weight of the aerosol paint stock solution composition. The reason for this is that if the content is less than 2% by weight, the effects of quick drying and coating tackiness are not exhibited due to the inclusion of the cellulose derivative, and if the content exceeds 10% by weight, the viscosity is too high and the spray is less likely to become a mist and a clear coating film is obtained. This is because the weather resistance is deteriorated.

The organic solvent used in the present invention is at least one organic solvent having a flash point of 40.degree.
Organic solvent below 0 ° C. This is because if the flash point of the organic solvent used is lower than 40 ° C., the risk of ignition increases, which is not preferable.

That is, this organic solvent has a flash point of 40 ° C.
The temperature may be at least 70 ° C., and a single organic solvent or an organic solvent as a mixture may satisfy this condition. As an organic solvent satisfying this condition, for example, an organic solvent having a flash point of 30 ° C to 70 ° C can be exemplified.

More specifically, the flash point is 40 ° C. or more and 50 ° C.
As the organic solvent of less than, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, propylene glycol monoethyl ether, propylene glycol monomethyl ether acetate, methylcyclohexanone, methyl isoamyl acetate, sec-
Hexyl acetate, ethylene glycol monomethyl ether and the like can be suitably used, and propylene glycol monoethyl ether, propylene glycol monomethyl ether acetate and methyl isoamyl acetate are more preferable.

As the organic solvent having a flash point of 30 ° C. or higher and lower than 40 ° C., cyclohexanone, methyl-n-amyl ketone, butyl propionate, propylene glycol monomethyl ether and the like can be suitably used, and more preferably propylene glycol monomethyl ether. Ether and cyclohexanone are preferred.

Examples of the organic solvent having a flash point of 50 ° C. or more and less than 70 ° C. include 2-ethyl butyl acetate, butyl butyrate, ethylene glycol monobutyl ether, ethylene glycol tert-monobutyl ether, ethylene glycol isobutyl ether, ethylene glycol monomethyl ether. Acetate, propylene glycol monoethyl ether acetate, propylene glycol monomethyl ether acetate, ethyl 3-ethoxypropionate, and the like can be preferably used, and more preferably, ethylene glycol monobutyl ether, propylene glycol monoethyl ether acetate, and ethyl 3-ethoxypropionate are used. Nates and the like are desirable.

An organic solvent having a flash point of 40 ° C. or more and less than 70 ° C. may be appropriately selected from these organic solvents.
For example, an organic solvent having a flash point of 40 ° C. to 50 ° C. is an organic solvent that can be used alone, and an organic solvent having a flash point of 30 ° C. to less than 40 ° C. is an organic solvent having a flash point of 50 ° C. or more and less than 70 ° C. The flash point may be 40 ° C. or higher and lower than 70 ° C. by mixing.

As the mixed organic solvent,
A mixed solution of 30% by weight of an organic solvent having a flash point of 30 ° C. or more and less than 40 ° C. and 70 to 90% by weight of an organic solvent having a flash point of 50 ° C. or more and less than 70 ° C. can be preferably used.

The amount of the organic solvent to be blended is preferably 25 to 40% by weight, more preferably 35 to 40% by weight, based on 100% by weight of the aerosol paint stock solution composition.
The reason for this is that it is desirable to reduce the organic solvent component as much as possible from the viewpoint of global environmental pollution and danger of ignition. However, in order to easily produce mist when spraying, and to finish cleanly, 25 to 40% by weight is required. It is necessary.

That is, if the content is less than 25% by weight, the paint viscosity becomes too high, so that not only the production becomes difficult, but also the mist does not form when sprayed, while if it exceeds 40% by weight, the composition tends to sag when sprayed on the object. This is an important effect of the present invention, because it is not possible to provide an aerosol paint that can be easily used by anyone. In addition, in the case of using a solution-like polymer containing an organic solvent in the polymer as an essential component described above, the organic solvent in the polymer solution is also an organic solvent as an essential component. It is necessary that all the organic solvents including the organic solvent in the polymer solution satisfy the above-mentioned essential conditions.

The pigment which is an essential component of the present invention includes:
Use commonly used pigments such as titanium oxide, red iron oxide, carbon black, phthalocyanine blue, fast yellow, naphthol red, yellow iron oxide, and also rust preventive pigments such as zinc dust, zinc phosphate, and aluminum tripolyphosphate. Can be. If necessary, a precipitating pigment such as precipitated barium sulfate, calcium carbonate, talc, clay and silica can be preferably used.

The amount of the pigment is preferably 0.5 to 30% by weight, more preferably 1.0 to 25% by weight, based on 100% by weight of the aerosol paint stock solution composition. The reason is as follows.
If the amount is less than 5%, sufficient hiding power cannot be obtained, and the sprayability is deteriorated. On the other hand, if it exceeds 30% by weight, the gloss decreases.

In order to reduce the hardness of the coating film and to improve the flex resistance, a plasticizer may be added to the stock aerosol coating composition comprising the above essential components in addition to the above components. Further, a leveling agent, a dispersant, an antifoaming agent, a color separation preventing agent and the like which are usually used in coating materials can be used as appropriate.

The undiluted aerosol paint composition of the present invention comprises:
Aerosolized using a propellant. As the propellant, dimethyl ether is optimal, but dimethyl ether mixed with LPG (liquefied petroleum gas) can be used.

The propellant of this propellant and the undiluted paint composition
The coating liquid composition composition ratio (volume ratio) is 55/45 to 75/2.
5 can be suitably used, and more preferably 60/40 to 70.
/ 30 is desirable. The reason for this is that the solid content of the paint of the present invention is higher than the conventional product (15 to 30% by weight) (higher than 60% by weight), and it is necessary to use a large amount of propellant in order to form a fine mist. Because there is.

The effects of the present invention will be further clarified by showing Examples, Comparative Examples and Test Examples of the present invention.

EXAMPLES (Test Examples 1 to 10) The aerosol paint stock solutions of Examples 1 to 10 were prepared according to the formulation shown in Table 1, and subjected to the test of the following Test Example 1.

[0036]

[Table 1]

The resins A to F are polymer solutions containing an organic solvent obtained by the following production method. (Resin A) 57 parts of propylene glycol monoethyl ether is charged into a four-necked flask equipped with a stirrer, a reflux condenser, a thermometer and a dropping funnel, and heated to 90 ° C. 30 parts of styrene and 20 parts of methyl methacrylate were added from a dropping funnel.
Parts, n-butyl methacrylate 33 parts, methacrylic acid 2-
A mixture of 15 parts of hydroxyethyl, 2 parts of methacrylic acid, 3 parts of n-dodecylmercaptan and 2 parts of azobisisobutyronitrile was added while maintaining a temperature of 90 to 100 ° C.
Drop in time and stir. After completion of the dropwise addition, 2 parts of azobisisobutyronitrile was added little by little, and the mixture was stirred under reflux for 4 hours to terminate the polymerization, thereby obtaining a polymer solution having a solid content of 65% by weight.

(Resin B) Instead of propylene glycol monoethyl ether of resin A, 45.6 parts of butyl cellosolve and 11.4 parts of propylene glycol monomethyl ether, n-methacrylic acid
Instead of butyl, 13 parts of isobutyl methacrylate and 20 parts of n-butyl acrylate were used.
A 5% by weight polymer solution was obtained.

(Resin C) 28.5 parts of propylene glycol monoethyl ether and 22.8 parts of butyl cellosolve were charged in the same apparatus as for resin A.
4. parts and propylene glycol monomethyl ether
Charge 7 parts and heat to 100 ° C. 40 parts of styrene,
30 parts of methyl methacrylate, 3 parts of butyl acrylate, 2 parts of acrylic acid, 2-hydroxypropyl methacrylate 2
A mixture consisting of 5 parts, 1 part of azobisisobutyronitrile and 2 parts of n-dodecylmercaptan is added dropwise to the mixture at 100 to 120 ° C. over 5 hours with stirring. After the completion of dropping, the temperature is set to 8
The mixture was stirred for 5 hours while adding 2 parts of azobisisobutyronitrile little by little at a temperature of 5 to 90 ° C. to obtain a polymer solution having a solid content of 65% by weight.

(Resin D) 57 parts of propylene glycol monoethyl ether is charged into the same apparatus as in the case of resin A and heated to 90 ° C.
From the dropping funnel, 30 parts of styrene, 20 parts of methyl methacrylate, 23 parts of n-butyl methacrylate, 15 parts of 2-hydroxyethyl methacrylate, 2 parts of methacrylic acid,
10 parts of dimethyl fumarate, n-dodecyl mercaptan 3
Parts and a mixture of 2 parts of azobisisobutyronitrile in 90 parts
While maintaining the temperature at ４100 ° C., the solution is dropped in 4 hours and stirred. After completion of the dropwise addition, 2 parts of azobisisobutyronitrile was added little by little, and the mixture was stirred under reflux for 4 hours to terminate the polymerization, thereby obtaining a polymer solution having a solid content of 65% by weight.

(Resin E) In the same apparatus as for resin A, 28.5 parts of propylene glycol monoethyl ether and 22.8 parts of butyl cellosolve were used.
Parts and propylene glycol monomethyl ether 5.7
Charge the parts and heat to 100 ° C. 30 parts of styrene, 30 parts of methyl methacrylate, 3 parts of dimethyl acrylate, 2 parts of acrylic acid, 2-hydroxypropyl methacrylate 2
A mixture comprising 5 parts, 10 parts of dimethyl fumarate, 1 part of azobisisobutyronitrile and 2 parts of n-dodecylmercaptan is added dropwise to the mixture at 100 to 120 ° C. over 5 hours with stirring. After completion of the dropwise addition, the temperature was raised to 85 to 90 ° C., and the mixture was stirred for 5 hours while adding 2 parts of azobisisobutyronitrile little by little to obtain a polymer solution having a solid content of 65% by weight.

(Resin F) Dibutyl fumarate was used in place of dimethyl fumarate of resin D, and a polymerization solution having a solid content of 65% by weight was obtained in the same manner.

(Resin G) Dibutyl fumarate was used in place of dimethyl fumarate of resin E, and a polymerization solution having a solid content of 65% by weight was obtained in the same manner.

In Table 1, * 1 is manufactured by Daicel Chemical Industries, Ltd., * 2 is manufactured by Ishihara Sangyo Co., Ltd., * 3 is manufactured by Mitsubishi Kasei Corporation, * 4 is manufactured by Hoechst Japan Co., Ltd., * 5 Is manufactured by Dainippon Ink and Chemicals, * 6 is also manufactured by Dainippon Ink and Chemicals, and * 7 is manufactured by Bayer Japan Ltd. (The same applies to the following tables.) Further, in the column of the paint solid component in Table 1, the amount of the solid component obtained by removing the organic solvent from the resin and the amount of the other solid components are combined. The total solid content is shown, and the number in the solvent column indicates the amount of the organic solvent contained in the resin and the total organic solvent to which the other organic solvents are added. All units in the table are% by weight. (The same applies to the following tables.)

(Comparative Examples 1 to 4) The aerosol paint stock solutions of Comparative Examples 1 to 4 were prepared according to the formulation shown in Table 2, and were subjected to the test of the following Test Example 2.

[0046]

[Table 2] In addition, the manufacturing method of resin H and resin I is shown below.

(Resin H) 34 parts of ethyl acetate and 30 parts of toluene are charged into the same apparatus as that for the resin A, and heated to reflux. Styrene 30
Parts, methyl methacrylate 20 parts, n-butyl methacrylate 33 parts, 2-hydroxyethyl methacrylate 15 parts,
A mixture consisting of 2 parts of methacrylic acid and 2 parts of benzoyl peroxide is added dropwise over 3 hours, and stirring is continued under reflux for another 3 hours. Then azobisisobutyronitrile 1
The mixture was added little by little and stirred under reflux for 2 hours to complete the polymerization. Finally, 37 parts of toluene was added and stirred to obtain a polymer solution having a solid content of 50% by weight.

(Resin I) In the same apparatus as in Experimental Example 1, 34 parts of butyl acetate and 67 parts of toluene were charged and heated to 90 ° C. A mixture consisting of 65 parts of methyl methacrylate, 25 parts of ethyl acrylate, 9 parts of 2-hydroxyethyl methacrylate, 1 part of acrylic acid, 1 part of azobisisobutyronitrile, and 0.4 part of azobiscyclohexanitrile, Add dropwise over 4 hours with stirring. During this time, the temperature is maintained at 90 to 100 ° C. Further, the mixture was stirred at that temperature for 4 hours, and the solid content was 50% by weight.
A polymer solution was obtained.

(Test Example 1) The aerosol coating compositions obtained in Examples 1 to 6 and Comparative Examples 1 to 4 were placed in a 200-ml wide-mouthed bottle with a lid, and an appropriate amount of a glass bead for dispersion was added. The mixture was dispersed for 4 hours with a car to obtain an adjustment liquid. After 90 ml of this prepared liquid was filled in a tin can for aerosol, 210 ml of dimethyl ether was sealed as a propellant to obtain an aerosol paint. This aerosol paint was used for a test plate (cold rolled steel plate of JIS G 3141), and the following performance was tested.

Sprayability: The state of the mist was visually observed after aerosol application for 10 seconds. The state of fog having no problem as an aerosol paint was evaluated as ○, and the state of fog having problems as aerosol paint such as coarse fog was evaluated as x.

Appearance of coating film: JIS K 5400 7.
The test was performed in the same manner as in Example 1. (Coating amount: 125 / m ² ) A coating film having no problem was evaluated as ○, and a coating film having problems was evaluated as ×.

Run-off: The test plate was erected vertically by aerosol application at a stretch until the substrate was hidden, and the degree of run-down was observed.も の indicates that the aerosol paint did not sag, and x indicates that the aerosol paint sagged.

Gloss: Tested according to JIS K 5400 7.6. (Coating amount 125 / m ² ) The test results are shown by numerical values.

Water resistance: Spray-painted on a test plate at a rate of about 125 / m ² and dried at room temperature for 7 days.
After soaking for a time, the appearance of the coating film was observed. ○, if there is no abnormality
The film from which the coating film was peeled was evaluated as x.

Alkali resistance: about 125 applied to test plate
/ M ² and spray dried at room temperature for 7 days.
The film was immersed in a sodium hydroxide solution (5% by weight) for 24 hours, and the appearance of the coating film was observed.異常 indicates that there was no abnormality and X indicates that the coating film was peeled off.

Non-adhesion: about 125 / m ² applied to test plate
After spray coating at a ratio of 5 g and drying at room temperature for 7 days, 5 pieces of gauze are stacked, and a 500 g weight is placed at the center of the gauze,
After standing at 24 ° C. for 24 hours, the gauze was separated from the coated surface, and the degree of adhesion between the coated surface and the gauze and the trace of the cloth on the coated surface were examined. The sample having no adhesion and no trace of the cloth was evaluated as ○, and the sample having any of them was evaluated as ×.

The results are summarized in Table 3.

[0058]

[Table 3]

(Test Example 2) Using the aerosol paint stock solutions obtained in Comparative Examples 1 to 4, an adjustment solution was obtained in the same manner as in Test Example 1. After filling 150 ml of this adjusted liquid into a tin can for aerosol, 150 ml of dimethyl ether was sealed as a propellant and the aerosol was added.
Paint. A test was conducted in the same manner as in Test Example 1 using this aerosol paint. These results are summarized in Table 4.

[0060]

[Table 4]

[0061]

The aerosol paint stock solution composition according to the present invention is an aerosol paint stock solution composition having the above constitution, so that the amount of organic solvent to be blended is reduced, environmental destruction is prevented, and regulations of the Fire Service Law are regulated. The present invention provides an aerosol paint that can be applied easily and neatly by anyone, with high safety without being subjected to any other factors, and with good adhesion efficiency to an object to be applied, capable of being thickly applied without dripping. Furthermore, this aerosol paint stock solution composition has gloss, non-stickiness, drying properties,
It has excellent effects on water resistance, alkali resistance, and stability.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) C09D 5/00-201/10

Claims (3)

(57) [Claims] 1. A. 10 to 45% by weight of styrene, and one or more monomers selected from methacrylic acid esters of alkyl alcohols having 1 to 8 carbon atoms and acrylic acid esters of alkyl alcohols having 1 to 8 carbon atoms.
80% by weight, 1.5 to 30% by weight of one or more monomers selected from methacrylic acid esters and acrylic acid esters having a hydroxyl group in the molecule, and 0.2% of a monomer having a carboxylic acid in the molecule. B. to 5% by weight, and a polymer obtained as an essential component; A cellulose derivative; An organic solvent comprising at least one organic solvent having a flash point of 40 ° C. or more and less than 70 ° C .; An aerosol paint stock solution comprising a pigment and an essential component, wherein the total amount of organic solvents contained in the composition is 40% by weight or less in the aerosol paint stock solution. Composition. 2. A. 10 to 45% by weight of styrene, and one or more monomers selected from methacrylic acid esters of alkyl alcohols having 1 to 8 carbon atoms and acrylic acid esters of alkyl alcohols having 1 to 8 carbon atoms.
80% by weight, 1.5 to 30% by weight of one or more monomers selected from methacrylic acid esters and acrylic acid esters having a hydroxyl group in the molecule, and 0.1% of a monomer having a carboxylic acid in the molecule. B. 2 to 5% by weight, and 0.1 to 30% by weight of another copolymerizable monomer, a polymer obtained as an essential component; A cellulose derivative; An organic solvent comprising at least one organic solvent having a flash point of 40 ° C. or more and less than 70 ° C .; An aerosol paint stock solution comprising a pigment and an essential component, wherein the total amount of organic solvents contained in the composition is 40% by weight or less in the aerosol paint stock solution. Composition. 3. The method according to claim 1, wherein the organic solvent has a flash point of 30 ° C. to less than 40 ° C., 10 to 30% by weight,
The aerosol paint stock solution composition according to claim 1 or 2, comprising 70 to 90% by weight of an organic solvent having a temperature of less than 0 ° C.