JPS6181466A - Inorganic paint - Google Patents

Abstract

PURPOSE:To provide the titled paint for the coating of metal, etc., having excellent heat-resistance, water-resistance, etc., and containing a water-soluble silicate, a silicon polyphosphate and a calcined product of a mixture of a colemanite compound, etc. and a natural mineral containing a zinc oxide source and silicon dioxide at a specific ratio. CONSTITUTION:The objective paint contains, as essential components, (A) a calcined product prepared by mixing (i) a zinc oxide source with (ii) a natural mineral containing >=10wt% silicon dioxide and (iii) 2-50pts.wt. (based on 100pts.wt. of (i)+(ii)) of a colemanite compound or ulexite, and heating the mixture at >=500 deg.C, (B) a water-soluble silicate (preferably 20-300pts.per 100 pts. of the component A) and (C) a silicon polyphosphate. A >=2-valent metal salt of a weak inorganic acid may be added to the composition. EFFECT:A coating film having excellent flexibility, workability and rust-proofing property can be produced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an inorganic paint with excellent heat resistance, water resistance, scorchability 3, and stripability.

(Prior Art) In recent years, with advances in synthetic resins and the development of superior coating methods, there has been remarkable progress in organic paints. However, on the other hand, inorganic lfi! The necessity of paints has been emphasized, and research on the development of paints has been actively conducted. The reasons for this are the expectation of instant properties such as heat resistance, flame resistance, flame resistance, and durability that cannot be obtained with organic* paints, as well as the fact that they are advantageous from a resource standpoint, and are also non-polluting and low-pollution paints. The possibility of this is that there is a large possibility of b.

The landless depressions that have been developed in the past are broadly divided into silicate-based inorganic paints and heptaphosphate-based inorganic paints, but these conventional inorganic paints generally have poor water resistance, town tax compliance, and adhesion. The disadvantage was that it had poor workability.

For example, for phosphate-based inorganic paints, phosphate is used as a binder, a composite oxide powder made by firing a mixture of zinc oxide, titanium oxide, and barium oxide is used as a hardening agent, and water or weakly alkaline water is used as a diluent. An inorganic 'mW material has been proposed containing as.

However, this paint does not give a satisfactory coating film, and its water resistance, flexibility, and adhesion are not satisfactory.

(Structure of the Invention) Therefore, in order to solve the above-mentioned drawbacks of conventional inorganic paints, the present inventors have diligently continued research and development of inorganic paints, and as a result, we have found that (aL (I) zinc oxide source) ,
(hereinafter, these natural minerals are simply referred to as minerals) containing at least 10% of silicon difluoride by weight, and (lii) a small amount of colmanite-based compounds or ulexite A small amount of baked product obtained by heating a mixture consisting of 100% or more to 500°C or higher
(b) at least one water-soluble silicate;
seeds and (c) at least one silicon phosphate (a), (b), and (c) of the inorganic paint a! Used as an essential component of film formation.

An inorganic paint obtained by diluting these with water or a composition containing the above (a), (b), and (c) as essential components and at least one divalent or higher valent gold silk salt of an inorganic weak acid. 5Ii
Inorganic paints are used as essential components of the main film-forming elements of paints and are obtained by diluting them with water.

It was discovered that the material has excellent heat resistance, water resistance, adhesion, adhesion, etc., and also has an excellent antirust effect when applied to various metals. 1. The present invention. This is the book that led me to complete the process.

The present invention will be explained in detail below.

system compound or less of ulexite (' and 41ai!-
A fired product obtained by heating a mixture consisting of the following to 500°C or higher [hereinafter, these fired products are collectively referred to as fired product (A)]
is manufactured as follows. That is, preferably 100% of zinc oxide is produced by heating, including zinc oxide.
a source of zinc oxide of less than 100 mesh, preferably at least one mineral of less than 100 mesh;
A mixture obtained by uniformly mixing at least one colmanite-based compound or ulexite below Metsushi by a dry or wet method is heated in a heating furnace such as an electric furnace.
Temperature above 500°C, preferably 700-1500°C,
Even better: 900-14 (150 at a temperature of 10°C)
By heating and baking for about 30 minutes, the desired baked product (A) can be obtained.

If the above-mentioned firing temperature is less than 500°C, it is not preferable because it takes too much time to obtain a fired product. However, even if the temperature is lower than 500°C, it is possible to obtain the desired fired product by firing for a fairly long time.

In the present specification, an r(+) zinc oxide source, (ii) at least one mineral, and riii) colmanite,
ltl.

A fired product obtained by heating a compound or a mixture with at least one type of ulexite to a temperature of 500°C or higher. In other words, the fR zinc source and the
? It becomes an oxidation auxiliary complex due to Ip-, and silica) also has at least a part of (1) M-bent lead, rll) minerals, and (+ii
) means a product obtained by causing a chemical reaction (for example, a solid solution of the above components) with a kurmanite yarn compound and or ulexite by heating.
It is not a mixture of the above ingredients.

As a zinc oxide source for producing the baked product (A), zinc oxide (2)), for example, zinc hydroxide.

Examples include zinc carbonate, Hanawa-based zinc carbonate, zinc nitrate, and zinc acetate. Also, as a specific example of a natural mineral containing 101 or more silicon dioxide by weight.

For example, silica stone, silica sand, toridite, cristobalite, kaolinite, hallosite, pandocite,
Kyanite, waxite, olivine, feldspar, wollastonite, serpentine 1 asbestos #i.

Micas, quartz, garnet, vermiculite, perlite.

pumice, pozzolan, talc, bentonite, acid clay,
Attapulgite, Keystone, Whitebait.

Sericite, zeolite, wilmite, carillite, magnetite, rosette, tephrite, zircon, bertrandite, dopase, dumortite.

titanite, danburite, diopside, manganese garnet,
Examples include manganese olivine. In addition, baked products (
Colmanite compounds used to produce A) have a molecular formula of caJaou and 5) including colemanite having a molecular formula of 1!0.
's)3. ! ots・9H20P preset eight (
priceite), molecular formula M g Ca B, O,
, -6TI, hydroborasite (Hydr
For convenience, it is a general term for natural pipes and products whose main components are a boron αl source and an alkaline earth gold Jf HP compound source.
Ulexite) has the molecular formula NaCaB, 0...8H
It is a natural mineral with a concentration of 20.

In the production of the fired product (A) used in the present invention, the mixing ratio of each ingredient as a raw material is determined by the required performance of the resulting coating film and workability. When the essential composition of the main elements is diluted with water (force) and the time at room temperature until the stone gels.

In other words, it can be varied over a very wide range depending on the pot life used (in relation to pot life).

First, the mixing ratio of zinc oxide and mineral is preferably 1/i, with 90 to 10 parts by weight of zinc oxide and 10 to 900 to 90 parts by weight of mineral. If the zinc oxide has a weight of 90 or more, the point life may be short and workability may be poor.
In cases where the zinc chloride content is less than 1O weight, the pot life is too short, which is unfavorable in terms of workability.

Missing number 1 The above-mentioned colmanite compound and/or urekasite used as a raw material component in the production of the fired product (A) used in the present invention are generally used in the 11-+i range during firing when the fired product (A) is left. It is not only effective in shortening the time and lowering the firing temperature.

It was found to be effective in controlling pot life and improving water resistance. The mixing ratio of these colmanite-based compounds or ulexite-based 4181 is 2 to 2 to 1,110 parts by weight, based on the total weight of zinc oxide and minerals.
A range of 50 parts by weight is recommended, especially a range of 2 to 20 parts by weight. In this case, if it is 4 parts less than 2 parts by weight, there will not be much effect on controlling pot life or improving water resistance, and if it is more than -50 parts by weight, the pot life may be affected and workability may be poor. It will be done.

Next, the water-soluble silicate used in the present invention is expressed, for example, by the general formula: It means that it is a water-soluble silicate with or without water of crystallization, and it is a water-soluble silicate with or without water of crystallization. It is a broad general term that includes water-soluble silicates of molecular weight. The water 8-based silicate used in the present invention is preferably used in powder form, specific examples include Fi, for example, powders of known Suigarasu No. 1, Mizumoto Lath No. 2, and Suigarasu No. 3. Examples include commercially available products. The mixing ratio of the above-mentioned fired product (A) and the above-mentioned water-soluble silicate used as the main film-forming components of the inorganic paint of the present invention [hereinafter, these mixtures are collectively referred to as mixture (B)] is as follows: The required performance and workability of the resulting coating film can be varied over a wide range, but usually the above fired product (A)
is 1()0 parts by weight, whereas the above water-soluble silicon rIft
It is preferable for the salt powder to be in the range of 20 to 300 parts by weight; however, if the mixing ratio of the water-soluble silica salt powder is less than 20 parts by weight, it may not be possible to obtain a good # film; When the weight part is above N, there are cases where the pot life is unfavorable.

Next, the BoIJ 17 silicon acid used in the present invention,
(1) silicon dioxide source and (li) phosphorus pentoxide source, which are obtained by heating a heated mixture at a temperature of preferably 300°C or higher; When it is suspended in water, it gradually releases monophosphoric acid and gradually dissolves into the water. (collectively called silicon phosphate).

General formula + SiP! It has a highly crosslinked structure represented by 0ff-)n (where n represents an integer) and does not contain crystalline, water-inbathable polysilicon phosphate X#i. In order to reduce the high degree of crosslinking density, exude crystallinity, and expose a structure that gradually releases phosphoric acid in an aqueous medium, the water-soluble silicon phosphate used in the present invention has the above general formula +SiP, It is desirable that the ratio of silicon atoms to phosphorus atoms in the silicon borate represented by O 717 is not J:2. The essential condition is to gradually release phosphoric acid in the water body.

The water-soluble silicon polyphosphate used in the present invention can be prepared by substituting a part of the silicon dioxide source or phosphorus pentoxide source with other metal oxide sources, such as an alkali gold halide source or an alkaline earth metal oxide source. , or Group III of the periodic table to YMrf
Also included are water-soluble silicon bo-1117 phosphates substituted with at least one of the gold halo heptaide sources of c.

ζ means a compound that dissolves as a metal oxide source and produces a metal compound by heating, including the metal oxide, and specific examples include Li, 0. N
a, 0. Lithium, including K, Of, Z, etc.

Each of the hydroxides, carbonates, and nitrates such as sodium and potassium were opened, and then MgO was added.

Including Cab, BaOfX, etc., hydroxides of magnesium, calcium, barium, etc., carbonaceous substances, nitrates, etc., as well as metal oxide sources of groups 1H to IN of the periodic table, For example, Al, o,
, Tl 02-Zr0t , etc., and hydroxides of aluminum dititanium, zirconium, and the like. Specific examples of silicon dioxide sources include natural minerals containing silicon dioxide as a main component, such as silica gel, hexaolein, and acid clay. ,-! Ta.

Specific examples of phosphorus pentoxide sources include phosphorus pentoxide, such as phosphoric acid.

The water-soluble bottle IJ 11 used in the present invention is MIZUK, which is commercially available from Suijun Kagaku Kogyo Co., Ltd.
ANEX-300, MIZUKANEX-500, etc. are particularly recommended.

The silicon borate used in the present invention contributes to improving the water resistance of the resulting coating film.

The mixing ratio of the above mixture (B) and the water-soluble silicon polyphosphate [hereinafter, the mixture of the above mixture 1'B) and the water-soluble silicon polyphosphate is collectively referred to as composition (c)] is obtained. This can be varied over a very wide range depending on the required performance and workability of the coating film to be applied, but usually 5 to 150 parts by weight of the water-soluble silicon polyphosphate powder is added to 100 parts by weight of the above mixture CB). A range is preferred. Improved water resistance of the coating film obtained when the mixing ratio of the water-soluble IJ silicon phosphate powder is 5 times) Tsujibe uniformity ζ is the reason why there is no hardening effect. In this case, there is a tendency for the coating film to crack, and there are cases where the pot life is unfavorable.

The bee-based paint of the present invention uses the above-mentioned composition (c) as an essential component of the main element for forming a paint film, and has heat resistance,
It has been found that a coating film with very excellent water resistance, scorchability, rust prevention, workability, etc. is desired, but the above composition (cI with a small amount of inorganic ~ divalent or higher gold B4 salt) r, z (
[Hereinafter, a composition in which at least one glaze of a divalent or higher metal salt of a weak acid is added to the composition (c) is collectively referred to as a composition (D)] to form a coating film. It is used as an essential component of the main element. Therefore, it has heat resistance, water resistance,
It was found that the flammability, rust prevention, workability, etc. were further improved.@ The divalent or higher valent metal salt of the inorganic weak acid used in the present invention is:
Must be a divalent N metal salt of boric acid, silicic acid, titanic acid, chromic acid, zirconic acid, manganic acid, molybdic acid, tankstic acid, tin moromi, vanadic acid, lead acid, ferric acid, and aluminic acid. , but it is also a general term that broadly includes water-containing walls. Specific examples of divalent or higher valent metals include magnesium, calcium, barium, zinc, aluminum, molybdenum, and more! , iron, cobalt, nickel.

Examples include manganese, zirconium, and lead.

Specific examples of divalent or higher valent metal salts of inorganic weak acids used in the present invention include zinc borate, calcium borate,
Aluminum borate, zinc silicate.

Kei e! RS, calcium silicate, magnesium silicate, aluminum silicate, mo-11butene silicate, copper silicate, cobalt silicate, manganese silicate, zirconium silicate, magnesium titanate, calcium titanate, paris-9 titanate nickel titanate, lead titanate, zinc chromate, calcium chromate, im zirconate, magnesium zirconate, calcium zirconate, barium manganate.

Zinc molybdate, calcium molybdate, calcium tungstate, stannic acid] [, magnesium tin vinegar,
Calcium stannate, lead stannate, calcium vanadate,
Magnesium leadate, calcium leadate, barium leadate, zinc leadate, manganese leadate.

Nickel leadate, cobalt leadate, calcium ferrate.

Zinc ferrate, manganese ferrate, calcium aluminate.

Examples include manganese aluminate.

The mixing ratio of the divalent or higher valent metal salt of the inorganic weak acid used in the present invention is preferably in the range of 2 to 100 parts by weight per 100 parts by weight of the composition (c). If the mixing ratio of the divalent or higher valent metal salt without @ stinging acid is less than type 2 breaking i, the desired effect will be small.

Furthermore, even if 100 parts by weight is used, there is no significant difference in the effect.
The effects of I4 salts vary depending on the type of inorganic weak acid and the type of metal. For example, hydrated zinc silicate and calcium aluminate have the effect of shortening the water life, while zirconium silicate, calcium zirconate, calcium titanate, and the like have the same effect on water resistance. Moreover, it is effective in improving the hardness of calcium tungstate. Furthermore, calcium ferrate, zinc ferrate, manganese ferrate, and the like are effective in improving M-proof properties. ,Also,
For example, calcium salts generally contribute to improving water resistance, but zinc salts are generally more effective in improving sinterability than in improving water resistance. Korekeosora <, Ca-0 and zn-
Besides the difference in chemistry with o.

This may be due to the difference in coordination ability between the calcium atom and the zinc atom with respect to the acid concentration. Therefore, depending on the application of the paint and the requirements for the performance of the coating film, it may be recommended to use a mixture of at least 412 valent metal salts of the above-mentioned inorganic weak acids.

Next, a method for producing an inorganic paint according to the present invention will be explained.

That is, the fired product (A) obtained by the above-mentioned production method, a water-soluble silicate powder, and a water-soluble silicon phosphate powder are mixed as desired, and then this mixture is processed by a ball mill or the like. The composition (c') for inorganic paints of the present invention is obtained by pulverizing preferably to a #'1200 mesh size. This composition (c) is mixed uniformly with a desired amount of at least one of divalent gold and fluorine of not more than 200 mesh of an inorganic weak acid to form a composition for an inorganic paint according to the present invention. CD). These compositions (c) or (D) must be added with an extender pigment such as clay or diatomaceous material.
Coloring pigments, anti-rust pigments, various metal powders, organic paraboloids (c”)
Spray coating used for coating synthetic resin paints, etc.
It is applied using a brush or roller coating method, and then air-dried or baked to form a coating film.

C) Effects of the present invention) The inorganic paint of the present invention has excellent workability of 1/1".

The resulting coating film has high Fi, hardness E, and heat resistance, is nonflammable, and has excellent water resistance and flammability.

It has good adhesion to inorganic and gold/Q coated objects, and has antirust effect on metallic coated objects. Therefore, as a use of the inorganic paint of the present invention, F.
i, Concrete, mortar, asbestos slate, asbestos cement perlite board, pulp cement board, rock wool board, and other inorganic building materials, 1L natural stone, glass, ceramic ware, roof roofing, and other applications that require heat resistance. Painting of various metals.

A wide range of applications in the fields of machinery, electricity, architecture, civil engineering, etc., such as coatings for bridges, private cars, ships, cypress manufacturing plants, and cypress electrical products that are expected to have anti-corrosion properties, and as a substitute for whitewashers. It has its uses.

EXAMPLES The present invention will be explained below with reference to examples, but the present invention is not limited to the following examples.

Example 1 100 yt parts of a homogeneous mixture of 47 parts by weight of zinc oxide and 53 parts by weight of zircon, each less than 200 mesoz.
After uniformly mixing 10 parts of carborane with a weight of 0.00 mesh or less and firing in an electric furnace at a temperature of 1200°C for 3 hours or more, cooling and pulverizing to a size of 200 mesh or less, the desired fired product is obtained. (A) was obtained. 10 parts of the baked product (A).

100 parts by weight of Water Glass No. 1 Powder 100 Me Sauche,
MIZ of 200 mesh or less manufactured by Mizusawa Kasei Kohata Co., Ltd.
UKANEX-30053 & u parts, Filling T 41 as 2 (weigh 51 parts of kaolin clay of 10 mesh or less, 50 parts 'f for 100 parts by weight of the total solid content above)
After adding it part of water, the mixture was stirred and mixed using a glass bead for 15 minutes, and then applied to an aluminum plate and an iron plate. After being dry to the touch, it was baked and hardened in an electric furnace at a temperature of 160° C. for 1 tts. Each oval burnt material used in the 11 examples below C, MIZ
UKANEX-300゜Kaolin clay is 20 each
It is a powder of n mesh or less, and water glass is a powder of 100 mesh or less. , and the heavy f part is abbreviated as part).

Example 2 100 parts of a homogeneous mixture of 31 parts of zinc oxide and 69 parts of zircon, each having less than 200 meshes, and 10 parts of carborane of less than 200 meshes were mixed with fy3-1, and heated in an electric T at a temperature of 1200°C. After heating and firing for more than an hour, the mixture was cooled and pulverized to 200 meshes or less to obtain the desired fired product. 10 parts of the fired product, 10 parts of water glass No. 1 powder %M
Weighed 5 parts of IZUKA-NEX-30 and 5 parts of kaolin clay, added 50 parts of water to 100 parts of the total solid content, and stirred and mixed for 15 minutes with a glass bead.
．． It was applied to an aluminum plate and a steel plate.

After it was dry to the touch, it was cured by baking at a temperature of 160° C. for 1 hour in an electric press.

Example 3 100 parts of a homogeneous mixture of 18 parts of zinc oxide and 82 parts of zircon, each having a mesh size of 200 or less, and 2,710 parts of carbo having a mesh size of 2()O or less were mixed uniformly, and the mixture was heated in an electric furnace.
After heating and firing at a temperature of 200° C. for 3 hours or more, the mixture was cooled and ground to 200 meshes or less to obtain the desired fired product. 10 parts of the fired product, 10 parts of ykff ux No. 1 powder, 5 parts of MIZUKANEX-300, 5 parts of kaolin clay
After adding 50 parts of water to 100 parts of the total solid content, the mixture was stirred and mixed using a glass bead for 15 minutes, and then applied to an aluminum plate and an iron plate. After being dry to the touch, it was baked and hardened in an electric furnace at a temperature of 160° C. for 1 hour.

Example 4: 100 parts of a homogeneous mixture of 65 parts of zinc oxide and 35 parts of silica sand, each having 200 mesh or less, and 10 parts of carborane, each having 200 mesh or less, were mixed uniformly and heated in an electric furnace for 120 parts.
After heating and firing at least 3 parts at a temperature of 0° C., the mixture was cooled and pulverized to 200 meshes or less to obtain the desired fired product.

10% of the fired product, 10M of water glass No. 1 powder, +VIIZUKANE
X-3005 part, kaolin clay 5 evil scale -:.

50 parts of water was added to 100 parts of the total solid content, stirred and mixed using a glass bead for 15 minutes, and then applied to an aluminum plate and a steel plate. After drying to the touch, place in electric oven 1
Bake hardening was carried out at a temperature of 60° C. for 1 hour and 111 hours.

'#旌f115゜each fi2 (10 mesh, 100 parts of a mixture of 50 parts of zinc oxide and 50 parts of acid clay under 200 mesh N, and 10 parts of carboxylic acid under 200 mesh N) The five pieces were combined, heated and fired in an air furnace at a temperature of 120QC for 3 hours, cooled, and ground to less than 200 mesh to obtain the desired fired product. 10 parts of the fired product, 10 parts of water glass No. 1 powder, MI ZUKANEX-800
Weigh and needle 5 parts and 5 parts of kaolin clay.

After adding 50 parts of water to 100 parts of the total solid content, the mixture was stirred and mixed using a glass bead for 15 minutes.

Example 6 100 parts of a homogeneous mixture of 50 parts of zinc oxide and 50 parts of kaolin clay, each having 200 mesh or less, and 2710 parts of carbo having 200 mesh or less were mixed in a car, and heated in an electric furnace at a temperature of 1200°C for 3 hours. After heating and firing for a limited period of time, the product was cooled and ground into pieces of 200 mesh or less to obtain the desired fired product. Weighed 10 parts of the fired product, 10 parts of water glass No. 1 powder, 5 parts of MIZU-KANEX-300, and 5 parts of kaolin clay, and added 5 parts to 100 parts of the total solid content.
After adding 0 parts of water, the mixture was stirred and mixed using a glass bead for 15 minutes, and then applied to an aluminum plate and a steel plate. After being dry to the touch, it was baked and hardened in an air oven at a temperature of 160° C. for 1 hour.

Example 7 100 parts of a homogeneous mixture of 50 parts of zinc oxide and 50 parts of shirasu with a mesh size of 200 or less were mixed in one piece with 10 parts of carborane with a mesh size of 200 or less, and heated in an electric furnace for 120 parts.
After heating and baking at a temperature of 0"C (7) for 3 hours or more, cool and grind under 200 mesh sJA to obtain the desired baked product. ] 1° 10 parts of the above baked product, 1 part of water fj whitebait Weighed 10 parts of the last issue, 5 parts of MIZUKANEX-300, and 5 parts of kaolin clay.

After adding 50 parts of water to 100 parts of the above total solid content, the mixture was stirred and mixed in a glass bead for 15 minutes, and then applied to an aluminum plate and a steel plate. After drying to the touch, it was placed in an electric oven. 1
6. Baking and hardening for 1 time at a temperature of n'C and 7? -7 Example 8゜The fired product obtained in Example 3 and 'A/, 71. 'B $
ψ made 44i at 114: weight with the loser 11, ratio 1 = 1
10 parts of carna mixture, 10 parts of Mizugara x No. 1 powder, MI
Weigh 5 parts of ZUKANEX-300 and 5 parts of kaolin clay.

After adding 50 parts of water to 100 parts of the total solid content, the mixture was stirred and mixed using a glass bead for 15 minutes, and then applied to an aluminum plate and an iron plate. After drying to the touch, place in an electric oven for 16 days.
Bake hardening was performed at a temperature of 0° C. for 1 hour.

Example 9 100 parts of a carbonaceous mixture of 31 parts of zinc oxide and 69 parts of zircon, each having up to 200 meshes, and 9 lO of rexite
After heating and firing in an electric furnace at a temperature of 1200° C. for 3 hours or more, the mixture was cooled and pulverized to 200 meshes or less to obtain the desired fired product. 19 parts of the fired product,
Water glass No. 1 powder lO part, MIZUKANEX-300
S part.

Weigh Kaolin V-5 [total solid content of 100%
After 50 parts of water was added to each part, the mixture was stirred and mixed using a glass bead for 15 minutes, and then applied to an aluminum plate and an iron plate. After drying to the touch, heat at 160°C in an 11t air oven.
Example 1 A homogeneous mixture of 65 g of zinc oxide and 35 parts of silica sand, baked and hardened for 10° each, and 10 parts of oxxisite, each having a mesh size of 200 mesh or less, was mixed uniformly and heated in a 111-air furnace. After heating and firing on a 35101 iron plate at a temperature of 1,200° C., the mixture was cooled and ground to less than 200 meshes to obtain the desired fired product. 10 parts of the above phosphorus parabolite, 1 part of water glass No. 1 powder
0 m, MIZUKANEX-3005, 5 parts of kaolin clay was weighed in JP+ amount, and after adding 50 parts of water to 100 parts of the above solid content, 15 parts of water was added using glass beads.
The mixture was stirred and mixed for a few minutes and then hardened onto an aluminum plate and a steel plate. After being dry to the touch, it was baked and hardened in an electric furnace at a temperature of 160° C. for 1 hour.

Example 11゜10 parts of the fired product obtained in Example 2, 1 part of water glass No. 1 powder
Part 0, MIZUKANEX-3 (1053B.

Calcium titanate, 5 parts of kaolin clay, 5 parts of kaolin clay, 200 mts as a gold salt on a bivalent inorganic weak acid, 4+
After adding 50 parts of water to 100 parts of the above total solid content, the mixture was stirred for 15 minutes using a glass bead, and then applied to an aluminum 9mm plate and an iron plate. After drying to the touch,
Bake hardening was performed in an electric furnace at a temperature of 16°C for 15 minutes.

Example 12゜Baked product obtained in Example 2] (1 part, water glass No. 1 powder 10°Cm, MIZUKANgX-3005g.

Weigh out 2.5 parts of zirconium silicate, 2.5 parts of calcium zirconate, and 5 parts of kaolin clay, each having a value of 200 M Sos or less, as a divalent or higher gold pA salt of an inorganic weak acid, and make 100 parts of the above total solid content. After adding 50M water to the mixture, the mixture was stirred and mixed using a glass bead for 15 minutes, and then applied to an aluminum plate and an iron plate. When dry to the touch, it was baked and hardened in an electric furnace at a temperature of 160° C. for 1 time.

Example 13゜＄10 parts of the fired product obtained in Example 2, 1 part of water glass No. 1 powder
0 parts, MIZLIKANh:X -:ll 00 5
m, #1 as a metal ring on a divalent inorganic weak acid, respectively.
20 (2.5 parts of zirconium silicate of 1 mesh or less,
Weigh out 2.5 parts of calcium stannate and 5 parts of kaolin clay, add 50 parts of water to 100 parts of the above solid content, and then use a glass bead for 15 minutes. 0 parts of ) were mixed and applied to an aluminum plate and an iron plate.

After it was dry to the touch, it was baked and hardened in an electric furnace at a temperature of 16 n°C for 1 hour.

Actual MI 4 Examples 14°1■++4, 10 parts of fired product, 10 parts of water glass No. 1 powder, MIZUKANEX-3005N.

Weigh out 5 parts of calcium titanate 5FA% kaolin clay of 200 mesh or less as a divalent or higher gold kA mound of an inorganic weak acid, add 50 parts of water to 100 parts of the above total solid content, and then add glass. The mixture was stirred and mixed for 15 minutes using a pease and then coated on an aluminum plate. After being dry to the touch, it was baked and hardened in an electric furnace at a temperature of 160'C for 1 hour.

Example 115゜Real #4 - Obtained by treating exactly the same formulation in exactly the same way, except that 10 parts of the fired product obtained in Example 6 was used instead of 10 parts of the fired product used in #1114. The paint was applied to an aluminum plate. After being dry to the touch, it was baked and hardened in an electric furnace at a temperature of 16°C (16°C) for 1 hour.

Example 16゜Instead of 10 parts of the fired product used in Example 14, 11 parts of the fired product was used.
A paint obtained by treating the same formulation in exactly the same manner except that 10 parts of the fired product obtained at 0.0% was used was applied to an aluminum plate and an iron plate. 1'F: After touch drying, 1 in electric furnace
Baking was carried out at a temperature of 60 DEG C. for 1 hour, and 10 parts of the fired product (obtained in Example 9) and 5 parts of water glass No. 1 a powder 10M, MIZUKANg, <-30n.

Calcium stannate 5 as a divalent or higher valent metal salt of an inorganic weak acid
Weighed 5 parts of kaolin clay to give the total solid content of 1 part as above.
After adding 50 parts of water to 00 parts, the mixture was stirred and mixed using a glass bead for 15 minutes, and then applied to an aluminum plate and an iron plate. After drying to the touch.

Bake hardening was performed in an electric furnace at a temperature of 160° C. for 1 hour.

Example 18゜A paint obtained by treating the same formulation in the same manner except that 10 parts of the fired product obtained in Example 9 was used instead of the fired product used in Example fl114 was applied to an aluminum plate. After it was dry to the touch, it was partially smoked and sanded in an electric oven at a temperature of 160°C.

Fruit 7ais119°T obtained in Example 12? The paint was applied to the glass plate. After drying to the touch, it was cured with Ml for 1 hour at 160° C. in an oven.

Regarding the sample obtained in Example 1 above, coating film performance evaluation M
Show the result to the first discipline.

Table 1: Paint film performance evaluation results Table 1 (continued) Table 1 (continued) The evaluation method of each Mji film performance is as follows.

1. Burnable iron plate: A test piece obtained by coating on an iron plate with a thickness of 0.3" was folded 180° with the coating film outside, and the appearance of the coating film was judged by visual observation.

Stage: No cracks Good: Slight cracks observed: Too many cracks, poor: Peeling of paint film Aluminum plate: Test piece applied to a 0.2 mm thick aluminum plate. The film was bent iso' with the heavy film outside, then returned to its original position, and the same operation was repeated.The appearance of the paint film was visually evaluated.

Excellent: No major cracks after 2 or more repetitions = Some cracks can be seen after 2 repetitions = Many cracks after 2 repetitions Not acceptable: Cracks can be seen after 1 time 2. Treat the water resistance test piece in boiling water for 2 hours. After that, judgment was made by visual observation.

8 = No change at all: Good: No change: No change: No significant change 3, VFI adhesion Judgment was made in accordance with the JISK-5400 test method.

4. Lead fik Judgment was made using the lead cage scratch test method of JISK-54110.

5. Heat resistance After the specimens were treated in an electric furnace at 500°C for 21114 hours.

The appearance of the coating film was determined by visual observation 69.

Claims (1)

[Claims] 1. (a) (i) a source of zinc oxide; (ii) at least one natural mineral containing 10% or more of silicon dioxide by weight; and (iii) at least one of a colmanite compound or ulexite. (b) at least one water-soluble silicate; and (c) at least one silicon polyphosphate. An inorganic paint containing (a), (b), and (c) as essential components as main elements for forming a coating film. 2. A composition containing (a), (b), and (c) of claim 1 as essential components and at least one divalent or higher valent metal salt of an inorganic weak acid as essential components of the main elements for forming a coating film. Inorganic paint.