JPS60199075A - Anticorrosive paint of heat resistance and heat insulation - Google Patents

Abstract

PURPOSE:An anticorrosive paint of iron materials that contains titanate salt, silicon resin binder and anticorrosive agent, thus being suitably used in room heater, cooking utensils, heat sources or high-temperature reactor, because it has high heat resistance, heat insulation, high corrosive resistance even under saline atmosphere. CONSTITUTION:(A) A titanate salt, preferably alkali metal such as Li, Na, or K titanate or alkaline earth metal such as Mg or Ca titanate, (B) a silicone resin binder such as organopolysiloxane, (C) anticorrosive agent, preferably suberate salt or nitrogenzoate salt, when needed, (D) inorganic filler are used, preferably in amounts of 25-2,000pts.wt. of component B, 1-100pts.wt. of component C, per 100pts.wt. of component A and 10-90wt% of component D, based on component A, when needed, colorants and organic solvents are admixed, to give the objective paint.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high-temperature, heat-resistant, heat-insulating, rust-preventing paint that is excellent in high-temperature heat-resistant heat-insulating properties and also has excellent rust-preventing properties in environments where iron-based members are severely corrosive, such as in a salt water atmosphere.

(Prior art) Insulating materials are important materials from the viewpoint of resource and energy conservation, especially for heaters, which are often made of iron-based materials,
The walls of kitchen appliances, heating heat sources, high-temperature reaction towers, heat storage devices used for heat transport, piping, etc. are exposed to high-temperature atmospheres, and in many cases are exposed to salt water or corrosive gas environments such as sulfur dioxide gas. However, preventing heat dissipation from the walls of these vessels and preventing overheating accidents are important issues in terms of energy conservation, occupational safety and health, and disaster prevention. The development of a heat insulating material was desired. Since such heat insulating materials must have heat resistance that can withstand an atmosphere of 200 to 400°C, it is considered difficult to use organic materials, and various inorganic heat insulating materials have been developed.

From the viewpoint of heat insulating materials, various types of organic heat insulating materials with closed cell structures such as polyurethane foam, polystyrene foam, and polyethylene foam have been developed, and are considered suitable as heat insulating materials. However, the heat resistance temperature during long-term use is 150°C or less.

On the other hand, inorganic heat insulating materials include inorganic binders such as calcium silicate and alkali silicate filled with lIH materials such as asbestos, heat insulating molded products with a partially foamed structure, or simply glass fiber, asbestos, rock wool, etc. Insulation methods have been adopted in which inorganic fibers are used to cover the walls of the vessel, but it is difficult to apply to complex shapes, and insulation work tends to be carried out on-site, making it impossible to completely implement the design. This makes it difficult to confirm that this is the case. Furthermore, these insulation methods utilize the insulation effect that exists in the darkness of the insulation material such as the wall of the vessel, and utilizes this microscopic air layer.
Although this has the effect of lowering the temperature of the outer surface of the insulation material that is not in contact with the high-temperature side heat source, the insulation material absorbs excess heat from the high-density side heat source, resulting in a large energy loss. A major drawback of these conventional inorganic insulation materials is that they can only be applied to the outer surface of the vessel wall of the high-temperature heat source to be protected.Bg! Heat loss due to thermal conduction of the material cannot be prevented, and the inner surface of the vessel wall is compensated for, causing the vessel g! There has been a desire to develop a heat insulating paint that reduces heat loss through heat conduction through materials. However, the development of paints with excellent high-temperature resistance, especially binders, is a major challenge in the paint industry. However, it has good adhesion with metal, bending resistance,
Water resistance, chemical resistance, and ability to prevent the infiltration of salt water, corrosive gases, etc. are insufficient, and on the other hand, as mentioned above, organic binders often have a commonly used heat-resistant concentration of less than 150'CiX. .

As an organic binder, organopolysiloxane binders are known to have excellent heat resistance at temperatures above 200°C, and although they are widely used as heat-resistant paints, there are various limitations in the application conditions. However, it has only been used as a high-temperature heat-resistant paint, but it has not led to the development of a heat-insulating and rust-preventing paint that has excellent high-temperature heat resistance and heat insulation properties, and also has rust prevention properties for iron-based parts. Ta.

The present inventors had previously completed inventions related to solar heat shielding coating compositions and fireproof heat insulating coatings as heat insulating coatings that utilize alkali metal titanates, particularly potassium titanate, but as a result of further research, they realized that resource saving, When developing a heat-insulating and rust-preventing paint that has excellent high-temperature resistance from an energy-saving perspective and can be applied to the inner surface of vessel walls if necessary, we focused on the composition of the paint, its heat-insulating properties, heat resistance, and especially its rust-prevention properties for iron-based components. I was able to complete the present invention after learning that there were improvements, such as adhesive properties, that only those who were actually involved in the development could understand.

(Structure of the Invention) The present invention relates to a high-temperature, heat-resistant, heat-insulating, rust-preventing paint comprising a titanate, a silicone resin binder, and a rust preventive agent. As needed,
One or more types of inorganic fillers selected from high-density fillers, high refractive index fillers, platy mineral fillers, and other ordinary fillers, colorants, ammonium chloride, etc. are blended. Good too.

[Embodiments of the invention]

The titanate of the present invention is preferably an alkali metal titanate or an alkaline earth metal titanate. Examples of the alkali metal titanate include lithium titanate, sodium titanate, potassium titanate, rubidium titanate, cesium titanate, and francium titanate.
820 ・nTloz (H-Li, Ha, Rb, C
s, Fr, and n are indicated by positive numbers. Examples of alkaline earth titanate salts include beryllium ditanate, magnesium titanate, calcium titanate, strontium titanate, barium titanate, radium titanate, and LIIL nTloz (L-Be, Hg, Ca
.

Sr, Ba, Ra, n is a positive real number), and all are used in the form of fibrous crystals, crystal powders, crushed products of melts, or powders thereof. Although any shape may be used, a fibrous titanate having a high refractive index is particularly suitable in the present invention.

Furthermore, by treating titanate crystals with an inorganic acid such as hydrochloric acid, washing with water, and drying, titanate with a part of alkali metal atoms or alkaline earth gold WI4 atoms extracted can be obtained. However, with heat-resistant paint using this,
Compared to heat-resistant paints using titanates, a product with superior high-temperature heat resistance and excellent physical properties of the coating film can be obtained.

The silicone resin binder of the present invention includes an organopolysiloxane binder, a polyacryloxyalkylalkoxysilane binder, a polyvinylsilane binder, and the like. , polydimethylsiloxane, polydiphenylsiloxane, polymethylphenylsiloxane containing at least 11 or more substituents such as allyl group, human oxyl group, alkoxy group having 1 to 4 carbon atoms, amino group, mercapto group, etc. Straight silicone resins such as copolymers, epoxy-modified silicone resins made by reacting straight silicone resins with epoxy resins, polyester-modified silicone resins made from condensates of straight silicone resins and polybasic acids and polyhydric alcohols, straight silicone resins and fatty acids. ,
Synthesis of polybasic acid and polyhydric alcohol or alkyd-modified silicone resin made by reacting straight silicone resin with alkyd resin, straight silicone resin and melamine formaldehyde resin, urea formaldehyde resin Guanamine resin made by reacting benzoguanamine, acetoguanamine, etc. with formaldehyde A silicone resin binder made of one or a mixture of two or more of straight silicone resins such as amino resin-modified silicone resins and modified silicone resins, which are reacted with polydimethyl For siloxane binders, the CH3/St ratio is 1.2 or more and 1.9
Below, those having 1.3 to 1.8 are particularly preferred, and polydiphenylsiloxane, polymethylphenylsiloxane and copolymers thereof, and copolymers of polydimethylsiloxane and polydiphenylsiloxane and/or polymethylphenylsiloxane are preferred. Phenyl group-containing polysiloxane compounds such as polymers can be used alone as the binder of the present invention, but modified silicone resins such as epoxy-modified silicone resins, polyester-modified silicone resins, alkyd-modified silicone resins, and amino resin-modified silicone resins When one or a mixture of two or more of these is used as a binder, excellent heat-resistant adhesive strength, particularly heat-resistant adhesive strength at 200 to 300°C, is improved. In addition, when a modified silicone resin or a mixture of a modified silicone resin and a straight silicone resin is used as a binder, the polysiloxane component is 20% or more, preferably 3% or more.
It is preferable that the binder component contains 0% by weight or more, and if the polysiloxane component is 201i% by weight or more, 200'
It has extremely excellent heat resistance even at grades C and above. In the present invention, organopolysiloxane binders include epoxy resins, polyester resins, alkyd resins, amino resins, acrylic resins, and ethylene-vinyl acetate copolymers, which are commonly used as paint binders. It can be used in combination with an organopolysiloxane binder as long as the polysiloxane component in the binder does not fall below 20% by weight.

As the polyacryloxyalkylalkoxysilane binder used in the present invention, general (R is 1 to 1 carbon atoms)
0 monovalent hydrocarbon group, R' is hydrogen or a monovalent hydrocarbon group having 1 to 12 carbon atoms, Rn is a divalent hydrocarbon group having 2 to 1 o carbon atoms, and n is an integer of 1 to 3. ) or these acryloxyalkylalkoxy/X silane compounds and the general formula OH2=O, a(X 4; t
H, CH3 or Gt Cj, Y hahydrogen, Cj, a group selected from a monovalent hydrocarbon group having 1 to 10 carbon atoms, a vinylphenyl group, a pyridyl group, 2-oxo-1-pyridiny,
(where R' is the same as above, a group selected from 2N-methylol group and N-alkoxymethylol group)].

Mention may be made of polymers obtained from reaction with one or a mixture of two or more β-unsaturated compounds or derivatives thereof in the presence of free radical initiators and organic solvents.

Examples of monovalent hydrocarbon groups suitable for R and R' in the acryloxyalkylalkoxysilane compound include:
For example, methyl, ethyl, propyl, butyl, pentyl,
Alkyl groups such as hexyl, octyl, decyl, aryl groups such as phenyl, naphthyl, tolyl, xylyl, cumenyl, ethylphenyl, benzyl, α-phenylethyl,
Examples of suitable divalent hydrocarbon groups as R' include ethylene, trimethylene, tetramethylene,
Examples include hexamethylene and octamethylene.

Examples of suitable α,β-unsaturated compounds or derivatives thereof represented by (Y is the same as above) include vinyl chloride, vinylidene chloride, vinyl acetate, vinyl propionate, vinyl butyrate, styrene, vinyltoluene, divinylbenzene,
Vinyl compounds such as vinylpyridine and vinylpyrrolidone,
Acrylonitrile, methacrylonitrile, methyl acrylate, ethyl acrylate, butyl acrylate,
Acrylic acid esters such as 2-ethylhexyl acrylate and lauryl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate,
Methacrylic acid esters such as 2-ethylhexyl methacrylate and lauryl methacrylate, acrylic acid, acrylamide, N-methylol acrylamide, N
-methoxymethylacrylamide, N-butoxymethylacrylamide, glycidyl acrylate, 2- and droxyethyl acrylate, methacrylic acid, methacrylic acid amide, N-methylolmethacrylamide, N-methoxymethylmethacrylamide, N-butoxymethylmethacrylamide, Glycidyl methacrylate, 2
- and acrylic and methacrylic compounds having reactive groups such as droxyethyl methacrylate.

In the polyacryloxyalkylalkoxysilane binder used in the present invention, at least 201% by weight of the acryloxyalkylalkoxysilane compound in the binder.
The content is preferably 30% by weight or more, and acryloxyalkylalkoxysilane compounds have particularly excellent heat resistance within this range.

In the polyacryloxyalkylalkoxysilane binder used in the present invention, acrylic and methacrylic compounds having reactive groups, particularly acrylamide and its derivatives such as N-methylolacrylamide, N-methoxymethylacrylamide, and N-butoxymethylacrylamide, are used. In addition, it is preferable that glycidyl methacrylate, 2- and droxyethyl methacrylate, etc. are contained in the binder in an amount of 5 to 20% by weight, and it is especially preferable that acrylonitrile is contained as another compound in an amount of 5 to 301% by weight. suitable.

The characteristics of using a polyacryloxyalkylalkoxysilane binder are that it gives favorable results in terms of adhesion to metals, coating film flexibility, water resistance, boiling water resistance, and weather resistance. 20-50% by weight of acrylonitrile 5-30〃 Reactive acrylic compound 5-20〃 Ester of acrylic acid or methacrylic acid 5-60% by weight of a copolymer composition, and the intrinsic viscosity in dimethylformamide solution at 30°C [η A polyacryloxyalkylalkoxysilane binder having a value of 0.5 to 2.0 is suitable in terms of adhesiveness, water resistance, weather resistance, and heat resistance.

In the binder used in the present invention, the vinyl silane compound represented by the general formula: % (where % is the same as above) can also be used alone or together with 0%='<"x (X 1Y
The polymer is produced from the reaction with one or a mixture of two or more α,β-unsaturated compounds or derivatives thereof in the presence of a free radical initiator and an organic solvent. The binder used in the present invention can also be obtained by replacing these vinyl silane compounds equivalently with an acryloxyalkylalkoxysilane compound or by mixing them.Suitable examples of the vinyl silane compounds of the present invention are shown below. and Rf are methyl, ethyl, propyl or butyl groups, and Rn is ethylene, trimethylene or tetramethylene group.

The rust preventive agent in the present invention includes lead salts of aliphatic monobasic acids, aliphatic dibasic acids, aromatic 11-basic acids, aromatic dibasic acids, aminocarboxylic acids, 1-hydroxybenzotriazole, and tannic acid. , zinc salt or chromium salt are preferred, and one or a combination of two or more of them is used.

Also, examples of aliphatic monobasic acids include caproic acid, caprylic acid,
Examples include capric acid, lauric acid, myristic acid, etc.
Examples of the aliphatic dibasic acids include speric acid, azelaic acid, and sebacic acid. Further, as the aromatic monobasic acid, 0-1■-1p-nitrobenzoic acid, 2,4- or 3.
5-dinitrobenzoic acid, o-, s-, p-aminobenzoic acid, cinnamic acid, nitrocinnamic acid, O-, -, p-toluic acid, cumic acid, p-tert-butylbenzoic acid, Examples of aromatic dibasic acids include phthalic acid and nitrophthalic acid.

In addition, as aminocarboxylic acids, 2-ethylhexylaminopropionic acid, cyclohexylaminopropionic acid,
Examples include aminolauric acid, aminomyristic acid, aminocaprylic acid, aminocapric acid, and aminopalmitic acid.

Paints containing these anti-rust agents are penetrating anti-rust paints for iron-based parts, and can be applied to not only unexposed iron-based parts, but also parts that have already developed rust and are thoroughly cleaned (rust-removed). ), it still exhibits sufficient rust prevention performance in a high-temperature atmosphere and in the presence of salt water and/or corrosive gas.

The high-temperature heat-resistant heat-insulating and rust-preventing paint of the present invention contains, in addition to the titanate and silicone resin binder and rust preventive agent of the present invention, commonly used colorants, inorganic fillers, organic solvents, etc. They can be obtained by using them in combination, but it is particularly preferable to use them together with inorganic fillers such as high-density fillers, high refractive index fillers, and plate-shaped mineral fillers.

High-density fillers that can be applied to the present invention are particularly suitable for specific gravity 2.
8 or higher, such as dolomite, aragonite, apatite, spinel,
Powders and solids of corundum, zircon-based minerals, or synthetic minerals: fused phosphorus fertilizers or similar compositions produced by the same method, frits, and even high-density glass powder granules, fibers, and foams. can be given.

In addition, the high refractive index filler is preferably one with a refractive index of 1.50 or more, and all the high-density fillers exemplified above have a refractive index of 1.50 or more, and are inorganic materials that can be suitably used in the present invention. It is a filler.

Dolomite (
SG 2.8-2.9, n 1.50-1.68) Magnesite (SG 3.0-3.1, 11.51-1.7
2) Aragonite (SG 2.9-3.0, n 1.5
3-1.68) Apatite (SG 3.1-3.2.
11.63~1.64) Spinel (SG 3.5~2
．． 6911.72~1.73) Corundum (SG 3
．． 9-4.0. n 1.76-1.77) Zircon (
SG 3.9-4.1, n 1.79-1.81) Silicon carbide (SG 3.17 12.65-2.691) Powder of crushed natural and synthetic minerals, and also as solid solution Phosphorous fertilizer is suitable.Also, as a platy mineral filler,
There are minerals such as clayey and micaceous minerals, and natural and synthetic mica powders are particularly suitable.

The inorganic fillers used in the present invention can be used alone or mixed in any proportion, but in particular, apatite, zircon sand, zircon flour, synthetic spinel, corundum, etc. are available at relatively low cost, and as solid solutions. Frit is readily available, and fused phosphorus or its analogs are inexpensive materials that can be processed into granules, fibers, and foams, making them suitable for improving insulation and reinforcing coatings. be.

Also, commonly used as the inorganic filler of the present invention@
It is also possible to use ordinary fillers such as zero pigments and extender pigments, but it is also effective to use inorganic minute hollow bodies with a high refractive index such as shirasu balloons and alumina balloons.

The heat-insulating and rust-preventing paint of the present invention is characterized by the combination of titanate, a silicone resin binder, a rust preventive, and if necessary, a colorant, an inorganic filler, an organic solvent, etc., and a mixture thereof. Particular attention should be paid to the ratio. In the present invention, the ratio of the titanate to the silicone resin binder is 25 to 2000 parts, particularly 50 to 1000 parts, per 100 parts (by weight, the same shall apply hereinafter) of the titanate.
Furthermore, it is suitable to use 100 to 500 parts.

The mixing ratio of these cannot be strictly specified depending on the type of silicone resin binder used, but in general, titanate 10
The silicone resin binder is 25 to 2000 parts per 0 parts.
It is preferable that the binder has a high bonding strength and functions as a coating film, and also has an excellent heat insulating effect.

The ratio of the titanate to the rust inhibitor is preferably 1 to 100 parts, particularly 3 to 90 parts, per 100 parts of the titanate. If the amount of the rust preventive agent is too small (less than 1 part), no rust prevention properties can be expected, and even if it is used in excess of 100 parts, there will be no major harm, but no improvement in rust prevention performance can be expected, and it is also economically disadvantageous. This is an internal matter.

In addition, when an inorganic filler is used in the present invention, the titanate is 10 to 90 parts, the inorganic filler is in the range of 90 to 10 parts, and the binder is 25 to 2,000 parts per 100 parts of these in total.
In particular, 50 to 1000 parts, more preferably 100 to 500 parts. It should be noted that there is an interaction between the proportions of the titanate and the inorganic filler, and especially excellent heat insulation properties are exhibited when the titanate and the inorganic filler are blended in a proportion of 20 to 70 parts and 80 to 30 parts of the inorganic filler.

The heat-insulating rust-preventing paint of the present invention is composed of a mixed dispersion of a titanate, a silicone resin binder, a rust preventive agent, and if necessary a colorant, an inorganic filler, and an organic solvent. After mixing the organic solvent solution with titanate, rust preventive, coloring agent, inorganic filler, curing aid for commonly used silicone resin binders, dispersant, viscosity modifier, etc. It can be produced by mixing and dispersing with a high-speed U-rotation mixer, roll mill, ball mill, sand mill, etc.

In addition, as a method for forming a coating film made of the heat-insulating and rust-preventing paint of the present invention, the paint of the present invention can be coated using the coating methods normally used, such as spacing, air spray coating, airless press coating, and even dipping coating. At this time, a diluting solvent may be added if necessary. A coating film of the heat-insulating rust-preventing paint of the present invention can be obtained by heating and drying the coated product using this method at 150 to 200°C for about 20 to 120 minutes in a room or, if necessary, at 150-200°C.

The present invention will be explained below with reference to Examples, but the present invention is not limited to these Examples.

Example 1 Fibrous potassium titanate (Tismo D manufactured by Ogaki Chemical Co., Ltd.)
80 parts of zinc azelate, 90 parts of Zircosand, and 1 part of Aerosil R972 (manufactured by Degussa) were mixed with epoxy modified silicone resin (TSR194 (non-volatile content: 50%),
In addition to 152 parts (manufactured by Toshiba Silicone N), a portion of xylene was further added, and premixing was performed for about 30 minutes using a disper.

Next, main dispersion was carried out using a water-cooled three-roll mill, and then the remaining xylene was added and dissolved until uniform using a disper. A steel plate (JIS G 31
41.5 PCC-b, 1. Ox 70x 150al)
Then, this steel plate was left outdoors to generate a thin coating, and then it was applied twice with air spray (application 1130M).
vl/time, and a second coat was applied about 24 hours later) to prepare a test board.

Corrosion resistance was determined by conducting a salt water spray test (240 hours) on each sample board, one after leaving it for 7 days at room temperature and curing it, and the other after heating it at 200℃ for 200 hours after 7 days of curing. The state of rust formation was observed.

Evaluation was performed based on the following criteria.

O: Almost no 0: Slight spot rust Δ: Occurrence A specimen was obtained by curing at room temperature for 7 days.

This specimen was connected to the exhaust port of a hot air drying oven with an exhaust temperature of 200° C., and changes in the surface temperature of the coating film were measured, and evaluation was made based on the concentration and time at which equilibrium was reached.

The results are shown in Table 1.

Incidentally, zinc azelaate is prepared as IIIL by the following method.

Ta.

(1) Caustic soda 400 parts by weight (2) Deionized water 5600 n (3) Azelain @ 941 II (4) Brine zinc (pure Jl [90%) 682 # (5)
A solution of caustic soda was prepared from (1) and (2) in deionized water, and (3) was gradually added to this solution while stirring to dissolve and obtain a transparent liquid.

The alkaline solution of (3) prepared in II was mixed with (4) and (
It was gradually added to the aqueous solution obtained from step 5) to obtain a white precipitate. This precipitate was separated by filtration under reduced pressure, and the precipitate was washed with deionized water and the filtration was repeated until almost no white precipitate reaction was observed in the silver nitrate aqueous solution. The precipitate thus obtained was dried in hot air drying 3 until the weight loss became constant to obtain a sample (yield 31: 1240 parts).
.

Example 2 Primers were used in accordance with Example 1. Namely Tismo D1 zinc cinnamate, apatite powder, WG
Mica #325 (manufactured by English Mica) was used as the first
The door listed in the table was weighed and added to 130 parts of Resin 2. A portion of a mixed solvent of 120 parts of cellosolve acetate and 45 parts of xylene was premixed in a disper for about 30 minutes, and then main dispersion was performed in the roll mill.

Next, the remaining solvent was added and dissolved using a disper to obtain the main ingredient of the primer. For 465 parts of this main agent, 1 part of curing catalyst
A uniform solution of 84 parts was applied to a new steel plate and a rusted steel plate according to Example 1 by air spraying, and after curing and heat treatment in the same manner as in Example 1, each test was conducted. Incidentally, zinc cinnamate was prepared according to the uJ method for zinc azelaate described in Example 1 and used.

Examples 3 to 6 After preparing the paints shown in Table 1 according to Example 1, test plates were prepared and various tests were conducted.

However, in the case of Example 4, since it is a heat-curing resin,
After heat treatment at 200° C. for 120 minutes, the sample was tested.

Tismo L is potassium hexatitanate hydrate III manufactured by Ohita Kagaku, and strontium titanate was prepared by the present inventors.

Comparative Examples 1 to 2 For comparison with Examples, zinc chromate and molybdenum acid salts, which are commonly used as rust-preventing pigments, were used and prepared according to the recipe in Table 1 according to Example 1. Then, test plates were prepared using these paints according to the procedure described in Example 1.

Resin 1: Epoxy-modified silicone resin manufactured by Toshiba Silicone ■, TSR-194 (non-volatile content 50%) Resin 2: Polyester-modified silicone resin manufactured by Bayer Japan ■, aays++onUD460 (non-volatile content 6)
0%) Resin 3: Toray Silicone ■ Addition-polymerized silicone resin for the chin, SP 7268 (Non-volatile content: 99.3%) Resin 4: Straight silicone resin made by Toray Silicone ■, SH805 (Non-volatile content: 50x) Resin 5 : Flukyd modified silicone resin, 5A-4 (non-volatile content 50%) manufactured by Shin-Etsu Chemical ■ Curing catalyst 1: Dismodule Z-4730 manufactured by Sumitomo Bayer Urethane Co. Curing catalyst 2: SRX 212 curing catalyst manufactured by Toray Silicone ■! [3: Commercially available mixture of cobalt, manganese and lead salt solutions of octylic acid The rust inhibitors used in the comparative example were all manufactured by Japan Inorganic Chemical Industry Co., Ltd.
The filler, Hisilite H32, is manufactured by Showa Light Metal.
belongs to.

In order to further investigate the long-term corrosion resistance, the paint prepared in Example 1 was test coated on the evaporation and hot water line pipes of an oil tanker and some of the flanges, valves, bolts and cylinder blocks attached thereto. As a result, almost no changes were observed even after about half a year. These parts are constantly under high heat (160-180°C) and are exposed to seawater, so conventional coating agents cannot
Rust or peeling of the paint film occurred in 1 to 2 months. From these results, it is clear that the paint of the present invention has excellent heat resistance and rust prevention properties, and is also extremely useful from the viewpoint of resource conservation.

Claims (1)

[Scope of Claims] 1. A high-temperature, heat-resistant, heat-insulating, rust-preventing paint comprising a titanate, a silicone resin-based thickener, and a rust preventive agent. 2. The high-temperature, heat-resistant, heat-insulating, rust-preventing paint according to claim 1, wherein the titanate is an alkali gold 11 titanate or an alkaline earth metal titanate. 3. Claim 1 comprising one or more inorganic fillers selected from high-density fillers, high refractive index fillers, platy mineral fillers, and other ordinary fillers. High-temperature, heat-resistant, heat-insulating, and rust-preventing paint as described in Section 1. 4. The high-temperature, heat-resistant, heat-insulating, and rust-preventing paint according to claim 1 or 3, which contains a colorant or an organic solvent as required. 5. The high-temperature heat-resistant heat-insulating rust-preventing paint according to claim 2, wherein the alkali metal titanate salt is a lithium salt, sodium salt, potassium salt, rubidium salt, cesium salt, or heptadium salt. 6. The high-temperature heat-resistant heat-insulating rust-inhibiting paint according to claim 2, wherein the alkaline earth metal titanate salt is a beryllium salt, a magnesium salt, a calcium salt, a strontium salt, a barium salt, or a radium salt. 7 The rust inhibitor is an aliphatic dibasic sm, an aromatic 11basic acid salt,
Claim 1 consisting of one or more of aromatic dibasic acid salts, aliphatic monobasic acid salts, aminocarboxylic acid salts, 1-hydroxybenzotriazole salts, or tannic acid salts
High-temperature, heat-resistant, heat-insulating, and rust-preventing paint as described in Section 1. 8. The high temperature heat resistant heat insulating rust preventive paint according to claim 7, wherein the rust preventive salt is a lead salt, zinc salt or chromium salt. 9 Aliphatic dibasic acid salts are sperate, azelate, and sebacate; aromatic monobasic acid salts are nitrobenzoate, dinitrobenzoate, aminobenzoate, and cinnamate. , nitrocinnamate, toluate, cumate, p-tert-butylbenzoate, aromatic 2
Basic salts are heptalates and nitrophthalates, aliphatic monobasic salts are caproates, caprylates, caprates, laurates, and myristates, and aminocarboxylic acid salts are diesters. - The high temperature according to claim 7 or 8, which is ethylhexylaminopropionate, aminolaurate, aminomyristate, aminocaprylate, aminocaprate, aminobalmitate. Heat-resistant, heat-insulating and anti-rust paint. 10. The high temperature heat resistant heat insulating rust preventive paint according to claim 1, wherein 25 to 2000 parts by weight of a silicone resin binder and 1 to 100 parts by weight of a rust preventive agent are blended with 100 parts by weight of the titanate. 11. The high-temperature, heat-resistant, heat-insulating, and rust-preventing paint according to claim 3, wherein the inorganic filler is in the form of granules, micro hollow bodies, or foamed granules. 12 10 to 90 parts by weight of titanate, 90 to 10 parts by weight of inorganic filler, and 1 to 90 parts of rust preventive! 25 to 20001181 parts and silicone resin binder! A high-temperature, heat-resistant, heat-insulating, and rust-preventing paint according to claim 3, which is a mixture of: