Subsurface concealing paint and painted object

Technical Field

The present invention relates to substrate shielding paint, and is provided with a shielding coating formed on the substrate film of the coating material.

Background Art

All along, in order to cover the matrix or next spreads the paint film , usually carry out will only use titanium oxide as the pigment coating on the substrate of the operation of above them. However, when using the substrate coating, cover power of titanium oxide is not full, therefore, in order to make the improved cover power , by thickening the base coating film thickness to deal with.

On the other hand, as the cost is reduced, to reduce the VOC for the thin coating film. Therefore, in Japan extra Kaiping 08-164358, Gazette (Patent literature 1) and Japanese extra Kaiping 10-137677 of (Patent literature 2) the proposed: in the above-mentioned such in the coating of the substrate, in order to make its further improve cover power , in addition to the titanium oxide, also with the aluminum sheet. However, even using this method, do not necessarily fully also cover power , still requires further cover power improved.

Literature of the prior art

Patent literature

Patent literature 1: Japanese extra Kaiping 08-164358, the

Patent document 2: Japanese extra Kaiping 10-137677, the

Content of the invention

Subject to be solved by the invention

The invention was made in view of the above-mentioned such a situation, the purpose is to, provide excellent cover power shielding paint of the substrate.

The means for solving the subject

The present inventors in order to solve the above problem and found researches, as in existing coating the substrate with a titanium oxide and an aluminum sheet respectively coating purposes, the means such as by increasing its use level to improve existing cover power limit, therefore, from the completely different repeatedly review the point of view of, and completed the present invention.

In other words, the substrate of the present invention is characterized in that the shielding of the coating, which comprises composite white pigment and resin substrate shielding paint, the composite white pigment comprising a plate-like base material and 1st attached to the surface of the white pigment, the sheet-shaped substrate is made of metal, metal-coated material and carbon material a arbitrary kind in, the 1st the shape of the white pigment is particles.

In this, preferably, the white pigment of the above-mentioned 1st and 2nd 1st the coexistence of the compounds of compounds adhere to the surface of the sheet-shaped substrate, is the 1st compound having 2 or more carboxyl groups with a compound, the 2nd compound has 1 or more amino compounds.

Furthermore, preferably, the 1st compound is unsaturated carboxylic acid polymer, the 2nd compound as having 1 or more amido amine, in addition, preferably, the compound is 1st the flax-seed oil fatty acid or soybean oil fatty acid is polymerized polymeric carboxylic acid, or the flax seed oil fatty acid or soybean oil fatty acid, with acrylic acid is polymerized polymeric carboxylic acid, the 2nd compound is selected from the group consisting of ethylene diamine, metaphenylene diamine, tetramethylene diamine, pentamethylene diamine, hexamethylene diamine, 1, 12-twelve alkylamine , alicyclic diamine, alicyclic triamine, polyamine, alicyclic four amine and fat ring at least 1 amine.

Furthermore, the sheet-shaped substrate is preferably made of aluminum, the 1st white pigment is preferably TiO₂.

Furthermore, in the shielding paint preferably this substrate, in addition to the above-mentioned composite white pigment also includes other than 2nd white pigment. It should be explained that, the invention also relates to the above-mentioned substrate with a shielding coating formed by the coating of the coating film.

The effect of this invention

Shielding paint substrate of the present invention show excellent cover power the effect of such extremely favorable.

Mode of execution

The following, the detailed description of the invention.

<基底 遮蔽 涂料>

Shielding paint substrate of this invention comprising a composite white pigment and resin. White pigment comprising composite shielding coating of the substrate can be expected to the appearance of the white display, aims to reduce the coating of the color of the impact of the coating. By this purpose can be clear, composite white pigment and the latter the "white" white pigment 1st and 2nd "white" white pigment is only conceptual content, does not exclude having gray, blue, pale yellow, the color of the farm. However, shielding paint substrate of the present invention can also be shown by containing other coloring pigment and coloring.

In the invention as long as shielding paint substrate containing composite white pigment and resin the two, it may also include other optional ingredient. As such other components, for example can be enumerated pigment dispersants, antifoaming agents, anti-settling agent, a curing catalyst, additive, other coloring pigment and the solvent.

In this shielding coating in the substrate, relative to the resin 100 parts by mass, and is suitable for containing 50-200 parts by mass, preferably 100-140 parts by mass of a composite white pigment. The composite white pigment content is smaller than 50 parts by mass, sometimes unable to display adequate cover power , even more than 200 parts by mass is not variable.

Furthermore, the containing other components, so long as they can exhibit the effect of the present invention, can include any content of the above-mentioned other component.

Shielding paint substrate of the invention is to cover the matrix or coated on the surface of the substrate layer and the coated substrate shielding paint, therefore, directly or indirectly, to the substrate is the substrate of the shielding paint, usually, in the substrate is formed over the shielding coating layer 1 layer or multi-layer of a coating on the final coating.

It should be explained that, in the present invention, into a visible light transmittance of 0% at the time, the substrate (the above-mentioned of the so-called substrate or base layer) are covered. However, according to the use, need not necessarily be a visible light transmittance of 0%.

<复合 白色 颜料>

Shielding substrate of this invention comprising in the coating in the composite white pigment, comprising a plate-like base material and 1st attached to the surface of the white pigment. In this case, the substrate of the present invention non-like existing shielding paint and coating the substrate of the sheet-like base material and which contains a white pigment 1st, through containing white pigment 1st attached to the surface of the sheet-like base material of the composite white pigment, can be and has improved tremendously cover power whiteness.

Composite white pigment of the present invention having such a composition, thus the sheet substrate cover power and 1st the whiteness of the white pigment, the synergistic role, to become highly both high cover power composite and whiteness of white pigment.

In such a composite white pigment, with respect to the sheet-like base material 100 parts by mass, preferably in a white pigment 1st 1-200 parts by mass, more preferably in order to 5-100 attached to the amount of parts by mass. The 1st white pigment according to the adhesion of the sheet-like base material of the appropriate adjustments specific surface area. Attached to the same is less than 1 when the parts by mass, the resulting composite white pigment is sometimes not sufficient whiteness, in addition, the amount is greater than 200 when parts by mass, sometimes in the manufacturing process such as [...] operability remarkably reduced.

Furthermore, such a composite white pigment has 1-100μm, more preferably 5-50μm, further preferably 5-20μm is the average particle size. Average particle size of less than 1 µm time, sometimes in the manufacturing process, such as significantly reduce operability [...] , if the average particle size greater than 100 µm, will damage the smoothness of the surface of coating film. In particular for automobile in use as the shielding coating of the substrate, the film thickness thin paint film from even if the coating film also can maintain the point of view of smoothness of the surface, preferably an average particle size of 20 µm the following. It should be explained that, in the present invention, refer to the average particle size, is based on the use of such known laser diffraction particle size distribution of the particle size distribution measuring method, the average volume calculated the volume average particle diameter of the obtained.

In this, 1st white pigment is attached to the surface of the sheet-like base material of the has no particular limitation, can be enumerated using [...]this strength , physical adsorption of the charge, and the like, collects the chemical adsorption and the like of other compounds. Wherein the white pigment is preferably compound 1st 1st and 2nd coexistence of the compound, the surface of the adhered to the sheet substrate.

The above-mentioned 1st compound as having 2 or more carboxyl groups with a compound, is essentially acid. Relative to this, the 2nd compound with 1 or more amino compounds, essentially alkali. Therefore, if these 1st and 2nd compound compound are respectively in order to pre-attached to a sheet-like substrate and 1st the state of the surface of the white pigment are mixed, is sharply generate acid-alkali of agglomeration of the acids, sometimes cannot make the 1st white pigment selectively attached to the sheet-like base material of the surface.

Relative to this, if the white pigment in 1st 1st and 2nd compound compound attachment for the coexistence of the surface of the sheet-like base material of the, is surprisingly found that: the above-mentioned such coherencies completely no, 1st white pigment is firmly adhered to the surface of the substrate. Although the detailed mechanism is unknown, but perhaps is that: the 1st and 2nd compound of compound under the state of agglomeration of, and in the macro condensed-state before each piled in the surface of a sheet substrate, the bulk side intake (Japanese: [...]) for 1st white pigment, the result is that through the 1st and 2nd the role of the compound of compound, 1st white pigment firmly attached to the surface of the substrate.

In this case, in the present invention, white pigment 1st attached to the sheet-like base material of the not only the surface of said white pigment 1st and coming into direct contact with the substrate, also expressed in the 1st and/or 2nd compound of compounds to other compound between the two for the state of the 1st white pigment to the sheet-like base material in such a manner for. Therefore, white pigment 1st "in the 1st and 2nd compound of coexistence, is attached to the surface of the sheet-like base material of the" mean, comprising physically 1st white pigment and flaky substrate direct contact and adhere to the way, in the 1st and 2nd compound compound and/or between the two clamped to the state of the 1st attached to the white pigment in the form of a sheet-like base material of the two. It should be explained that, in the present invention, it is believed that: is provided with a plurality of 1st attached to white pigment 1 a way on the surface of the sheet-like base material of the, compound and 1st 2nd compound through or not through the 1st white pigment present in the sheet-like substrate.

As stated above this 1st compound having 2 or more carboxyl groups with a compound, with the latter of the synergistic effect compound 2nd, 1st and the white pigment is attached to the role of the sheet-like base material of the surface. As long as the 1st compound as having 2 or more carboxyl groups with a compound, can be used without particular limitation, 1 the carboxyl group number in the molecule no particular limitation to the upper limit of.

As such 1st compound, preferably has 2 or more carboxyl group of the carboxylic acid, more preferably has at least 1 more than one double bond and 2 more than one carboxyl group of the carboxylic acid or its polymer, or dibasic acid. Furthermore, as such a polymer, preferably the unsaturated carboxylic acid polymer, heat polymerization especially preferred carboxylic acid. The so-called thermal polymerization carboxylic acid means, having a double bond of the 1 or more is obtained by thermal polymerization of a carboxylic acid having 1 or more double bond and 2 more than one carboxyl group of the carboxylic acid.

As such unsaturated carboxylic acid polymer of the examples of the initial raw materials, can be cited as the compound having a double bond group and a carboxyl group of 3- octylenic acid , 10- undecylene acid, oleic acid, linoleic acid, elaidic acid , acrylic acid, linolenic acid, or as the effects of the fatty acid mixture of tall oil fatty acid, palm oil fatty acid, rice-bran oil fatty acid, linseed oil fatty acid, soybean oil fatty acid, and so on, these can be respectively used alone or 2 or more kinds combined to use.

As such unsaturated carboxylic acids more preferred examples of polymer, can be instantiated: the flax seed oil fatty acid or soybean oil fatty acid is polymerized polymeric carboxylic acid; the linseed oil fatty acid or soybean oil fatty acid, with acrylic acid is polymerized polymeric carboxylic acid; polymerized the tall oil fatty acid, such as a polymeric carboxylic acid, in particular can be instantiated as a thermal polymerization of a carboxylic acid, the flax seed oil fatty acid or soybean oil fatty acid thermal polymerization thermal polymerization of a carboxylic acid, the flax seed oil fatty acid or soybean oil fatty acid, with acrylic acid thermal polymerization, thermal polymerization of a carboxylic acid.

Furthermore, as such market of polymeric carboxylic acids, can enumerate HARIDIMER200, HARIDIMER300, DIACID1550 (the tradenames, Harima into corporate), Pripol1017 (tradenames, corporate Uniqema), Empol1008 (tradenames, corporate Cognis), Unidyme27 (tradenames, corporate ArizonaChemical), Bersadime216 (tradenames, corporate HenkelJapan).

Examples of a dibasic acid, the second acid is preferably selected their own, pimelic acid , suberic acid , azelaic acid, sebacic acid, phthalic acid, isophthalic acid, terephthalic acid, acetone dicarboxylate, dodecane two acids , petrosilane two acid, twenty carbon two alkene two acids , ethyl octadecane diacid , dimethyl petrosilane two acid, eighteen carbon two alkene two acids , heteroploid twenty-two carbon two alkene two acids , heteroploid docosane two acids , heteroploid 20 carbon two alkene two acids , butyl suberic acid , two alkoxy carbonyl heteroploid docosahexenoate acid two alkene two at least 1 kind of dibasic acid.

In this, composite white pigment contained in the amount of the compound of 1st according to the use of the sheet-like base material of the surface area and the use of the amount of white pigment, 1st different, with respect to the sheet-like base material 100 parts by mass, preferably 0.1-30 parts by mass, particularly preferably 0.5-20 parts by mass. If less than 0.1 parts by mass, it does not enable the 1st white pigment sufficiently attached to sheet the surface of the substrate, even if more than 30 parts by mass the effect has not changed, the situation of existence of economically disadvantaged.

The above-mentioned of the 2nd compound with 1 or more amino compounds, the above-mentioned 1st through the synergistic effect of the compound, thus has the white pigment 1st attached to the role of the sheet-like base material of the surface.

As long as the 2nd compound as having 1 or more amino compounds, can be used without particular limitation, 1 of the base Figure of the ammonia in the molecule there is no defined upper limit. As such 2nd compound, is particularly preferably has 1 or more amino group of an amine. The reason for this is, 1st white pigment has the special firmly attached to the role of the sheet-like base material of the surface. It should be explained that, in the present invention said amino is, from ammonia, primary amine or secondary amine to remove the hydrogen 1 price of the functional group.

And, as with 1 or more amido amine, preferably has 2 or more amido amine, more specifically, can be enumerated is selected from ethylene diamine, metaphenylene diamine, tetramethylene diamine, pentamethylene diamine, hexamethylene diamine, 1, 12-twelve alkylamine , alicyclic diamine, alicyclic triamine, alicyclic four amine and fat ring polyamine (amino in the number of 5 or more) at least 1 amine.

In this, composite white pigment contained in the amount of the compound of 2nd according to the use of the sheet-like base material of the surface area and the use of the amount of white pigment, 1st different, with respect to the sheet-like base material 100 parts by mass, preferably 0.1-30 parts by mass, particularly preferably 0.5-20 parts by mass. If less than 0.1 parts by mass, the white pigment 1st not fully adhere to the sheet-like base material of the surface, if greater than 30 parts by mass a coherencies, sometimes unable to make the white pigment 1st fully adhere to the sheet-like base material of the surface.

<片状 基材>

Composite white pigment of the present invention contained in the substrate is made from a sheet of metal, the metal-coated material and carbon material a in arbitrary kind of. In this, the so-called "sheet", as long as the shape is deemed to be sheet-like, are not particularly limited.

The average thickness of the sheet-like base material of the there is no particular limitation, is preferably 0.02 µm more, especially preferably 0.1 µm the above. Furthermore, the average thickness thereof is preferably set to 5 µm the following, if it is 2 µm the following is more preferred. The average thickness is 0.02 µm the above, the easiness of in the process of manufacture of hand, an average thickness of 5 µm the following, the coating film of the coating composition, such as the appearance of the hand.

As the above-mentioned metal example, can enumerate aluminum, zinc, silver, copper, iron, nickel, in the metal titanium and comprising at least 1 kind of alloy (such as SUS (stainless steel), bronze and the like), and the like. Among them, sheet-like base material of the present invention is preferably formed by having very high cover power , cheap and small specific gravity and easy treatment of the aluminum.

Furthermore, as the examples of materials of the coating metal, can be cited inorganic compound particles through the (glass, mica, and alumina or titanium oxide, and ceramic particles or the like) such as the surface of the plated metal material duplicate above of illustration. Such circumstances, the metal formed as a layered, and the shape of the particles of the white pigment of the latter obviously difference 1st. Furthermore, inorganic compound particles such as mica (mica) through the in this way is coated with metal can for the first time as the sheet-like base material of the present invention, in the state of not being coated with metal (that is, the monomer such as mica (mica)) lower, due to low cover power , therefore cannot be used as the sheet-like base material of the present invention.

Furthermore, as the above examples of the carbon material, can be enumerated graphite, graphene and the like. Such carbon material is also can be the above-mentioned illustration of the metal-coated.

Such a sheet-like base material of the average particle size is preferably 1 µm the above, in particular if it is 5 µm above more preferably. Furthermore, the average particle size is preferably 100 µm the following, more preferably 50 µm the following, further preferably 20 µm the following. The average particle size is 1 µm the above, in the manufacturing process to the processing in the, usually reveal the tendency of the difficult to condense, in addition, the average particle size is 100 µm the following, as at the time of the coating use rough surface coating film can be prevented. In particular as automobile substrate for shielding paint when in use, the average particle size is 20 µm the following, even when reducing the film thickness thin paint film can be maintained in the surface smoothness of the coating film is preferred.

On the other hand, show the above-mentioned such as long as the aspect ratio, the average thickness of the sheet-like substrate is not particularly limited, is preferably 0.02 µm more, especially preferably 0.1 µm the above. Furthermore, the average thickness thereof is preferably set to 5 µm the following, if it is 2 µm the following is more preferred. The average thickness is 0.02 µm the above, in the process of manufacture of the easiness of the processing in the hand, an average thickness of 5 µm when the, hand in the appearance of the coating film. It should be explained that, an average particle size of as mentioned above, by using laser diffraction method is based on the well-known method, such as determining the particle size distribution of the particle size distribution, the average is calculated of the volume thereof. Furthermore, the average thickness, according to the sheet-like base material of the calculated cover power and density.

It should be explained that, in the sheet-like base material of the surface can also be appropriately pre-implementation of the following processing, i.e., inorganic compound or organic compound to play the water resistance, chemical resistance, weathering resistance, the processing of the functions. Especially the use of the aluminum of the base material when acted as a sheet-shaped base material, aluminum is easy to be connected with the water, acid, alkali reaction, thus sometimes preferred implementation of these processing.

<第一 白色 颜料>

1st white pigment of the present invention attached to the above-mentioned sheet-like base material of the surface, the shape of a particle. In this, the so-called "the shape of the particles is" expressed, with, for example, existing pearlescent pigment of in the, as a continuous layered covered by a layer of sheet-like base material of the covering of the surface of different, as long as it has the meaning, the particle shape and non-limited to a specific shape. Although the detailed mechanism is unknown, but perhaps is: the 1st and/or 2nd compound clip to the sheet substrate between 1st under the state of white pigment, white pigment, 1st attached to the sheet-like base material, whereby the 1st white pigment particle shapes of the attachment for the state of the surface of the sheet-like base material of the, and compared with the layered covering, the leapfrog cover power. In other words, the invention is characterized in that, the shape of the particles of the white pigment is attached to the 1st sheet-like base material of the surface.

As such 1st of the white pigment of the present invention, is preferably selected from the group consisting of barium sulfate, magnesium oxide, calcium carbonate, silica, mica, titanium oxide, aluminum in the 1 or more. In other words, 1st of the present invention can be to separate white pigment 1 kind of, or to be 2 or more kinds combined in the form of the surface of the adhered to the sheet substrate.

Furthermore, the 1st of the present invention the white pigment, the above illustration, particularly preferably titanium oxide (TiO₂). Its reason is that it has very excellent whiteness.

It should be explained that, this 1st the average particle diameter of the white pigment is not particularly limited, is preferably 0.01-2 µm, more preferably 0.01-1 µm. The particle size thereof is 0.01 µm the above, 1st the danger of white pigment, it is difficult to disperse small, particle size is 2 µm less, it is difficult to uniformly adhere to the small risk of the surface of the substrate.

<保护层>

For the present invention of the composite white pigment, can be formed on the surface of the protective layer. By using such a protective layer covering the composite white pigment on the surface of the whole or a part of the, can make the 1st further improve the adhesiveness of the white pigment. More preferably such a protective layer of the composite-coated surface of the white pigment.

Such a protective layer is preferably formed by having at least 1 polymerizable double bond of the monomer and/or oligomer obtained by the free radical polymerization of the resin, or is selected from Al, Si, Ti, Cr, Zr, and Ce Mo at least 1 kind of element oxide or hydroxide form.

<第二 白色 颜料>

Shielding coating of the present invention in the substrate, in addition to the above-mentioned composite white pigment can also include other than 2nd white pigment. The 2nd white pigment is not attached to the above-mentioned sheet-like base material of the surface with the white pigment 1st different. In other words, the 2nd white pigment is not attached to the sheet-like base material of the surface, and separate shielding coating contained in the substrate.

Such a 2nd white pigment is in the chemical composition of the above-mentioned 1st on the same pigment white pigment, can be independently 1 or combined 2 or more and include the shielding coating in the substrate. Furthermore, with the above-mentioned is the same as the 1st white pigment.

The substrate of this invention comprising such a 2nd shielding coating of the white pigment, there is no particular limitation to the content of, relative to the composite white pigment 100 parts by mass, can be designed into a 100-1000 parts by mass. Such a 2nd with the addition of the white pigment of the coating film to maintain whiteness and the membrane thickness of the effect of the cost can be reduced.

Such a 2nd the average particle diameter of the white pigment is not particularly limited, is preferably 0.01-2 µm, more preferably 0.01-1 µm. The particle size thereof is 0.01 µm the above, it is difficult to disperse 2nd the danger of white pigment small, particle size is 2 µm less, damage of the surface of the coating film is less risk of the smoothness.

<树脂>

As a substrate of this invention comprising shielding in the coating resin, there is no particular limitation, the defining can not use this kind of use in the resin of the existing known.

As such a resin, for example, can be instantiated thermosetting acrylic resin/melamine resin, thermosetting acrylic resin/CAB (cellulose acetate butyrate)/ melamine resin, thermosetting polyester (alkyd) resin/melamine resin, thermosetting polyester (alkyd)/ CAB/melamine resin, isocyanate curable urethane resin/normal temperature curing type acrylic resin, water thinned acrylic emulsion/melamine resin and the like.

<其他 成分>

The substrate of the present invention as long as shielding paint containing composite white pigment and the resin, it can include the aforesaid such other optional ingredient.

As such other components, for example, the solvent can be no particular limitation to the use of the existing use in a well-known solvent. Can be enumerated for example: water, alcohol series , glycol series, series, ester, etc. hydrophilic solvent (for example methanol, ethanol, isopropanol, n-propanol, T-butanol, n-butanol, isobutanol, ethyl cellosolve, butyl cellosolve, butyl carbitol , propylene glycol n-butyl ether, propylene glycol monomethyl ether, dipropylene glycol monomethyl ether, propylene glycol single propyl ether , acetone, ethyl acetate, propyl acetate, etc.), aromatic series, alicyclic series, oily solvent such as a hydrocarbon solvent (benzene, toluene, xylene, hexane, heptane, cyclohexane, octane, benzine and the like), and the like.

It should be explained that, with respect to the contained in the base shielding paint resin 100 parts by mass, the content of such a solvent can be 100-140 parts by mass.

<制造 方法>

Shielding paint substrate of the present invention used in a composite white pigment as long as the composition of the above-mentioned such, the manufacturing method thereof is not particularly limited.

For example, can be through the sheet-like substrate, compound 1st, and 2nd 1st manufacturing by mixing white pigment. This case, the sheet-like substrate, compound 1st, and 2nd 1st white pigment according to the mixing sequence is what, its sequence has no particular limitation. For example, all of the components can be a filling and mixing, can also be added sequentially one side of one side of each ingredient mixed. Furthermore, 1st white pigment can be added directly, can also be used for adding in advance of the dispersion machine 1st white pigment.

It should be explained that, on the occasion of the above-mentioned mixing, in order to make the ingredient dispersed or dissolved, it is preferred to use a solvent. Furthermore, as the mixing method, can be used in the slurry state mixed with a stirrer, can also be used under the state of the mixer to mix the kneading machine.

Furthermore, in addition to the above manufacturing method, the following method can also be adopted: for example, the 1st white pigment in the amino-containing compound (such as the 2nd compound with 1 or more amino compounds) in the presence of, or in the amino compound with an the presence of a chelating compound, dispersed in the non-polar solvent, the surface of the white pigment in the 1st form, include molecules having 2 carboxyl group of the amino and has no coating of the amino compound, or containing the amino compound with an coating of the chelate compound, generating surface treatment after 1st white pigment dispersion, 1st in the surface treatment of the dispersion of white pigment added and mixing the sheet substrate, the surface of the sheet-like base material of the surface treatment is attached to the 1st white pigment.

Furthermore, the following method can also be adopted: the 1st with the white pigment and the role of the sheet-like base material is adhered to a specific compound, and sheet-like substrate in the organic solvent, of the filter the filter and maintain the filter cake or not the original slurry and 1st of the white pigment in the presence of organic solvent, mixing mixing or stirring mixing, the 1st attached to white pigment on the surface of the sheet-like substrate, wherein such as the above-mentioned specific compound, as the aforesaid of the 1st compounds having 2 carboxyl group of a compound of the above, having a double bond of the 1 or more thermal polymerization of a carboxylic acid having 1 or more double bond and 2 more than one carboxyl group of the carboxylic acid.

Furthermore, as other method, can be manufactured by the following method: the 1st with a white pigment and the role of the sheet-like base material is adhered to a specific compound, an organic compound having a phosphate, an organic compound having a phosphate with the sheet-shaped substrate in the organic solvent, of the filter the filter and maintain the filter cake or not the original slurry and 1st of the white pigment in an organic solvent mixing is performed in the presence of mixing or stirring and mixing, so that the 1st attached to white pigment on the surface of the sheet-shaped substrate.

The obtained by these methods further according to the desired composite white pigment dispersed in the organic solvent mixing, and adding radical polymerizable unsaturated carboxylic acid, then, added with 3 or more free radical polymerizable double bond monomer and a polymerization initiator of the polymerization, thereby to remove the surplus organic solvent, compound white pigment to the resin film is formed on the surface of the.

And, the substrate of the present invention as described above, the use of shielding paint manufacturing composite white pigment, therefore, can be no particular limitation to the method for preparing the prior known manufacturing.

<涂敷物>

The invention also relates to a substrate using the above-mentioned such shielding paint to form a coating film (that is, substrate shielding coating layer) of the coating material. As mentioned above, shielding substrate of the present invention the shielding paint is used for in the base body or a base substrate layer coated on the surfaces of the coating and coating, therefore, directly or indirectly, to the substrate is the substrate of the shielding paint, usually, in the substrate is formed over the shielding coating layer 1 layer or a multi-layer coating on the final coating.

In this, as a base coating material of this invention, such as metal, plastic and other organic material, concrete, ceramic, inorganic material, paper, wood and the like, there is no particular limitation to its material. Furthermore, there is no particular limitation to the shape of, for example, automobile, vehicle, ship, bridge, tower, building and other three-dimensional structure, plate, foil, paper, cloth, film, such as a planar shape.

Furthermore, shielding paint with the substrate to form a coating film (that is, substrate shielding coating layer) there is no particular limitation to the thickness of the, even with such as 15-25μm can also play the thickness is formed, such as full cover power. This indicates that the: relative to the existing types of substrate layer needs 35-45μm in the thickness of the, coating film of the present invention with a thin thickness is still displayed excellent cover power. It should be explained that, such a film can be through the "multi-angle spectral colorimeter (tradenames: " X-RiteMA-68II the [...] , corporate X-Rite) measured L* value is 80 or more (L* values represent a coating of white degrees (lightness), numerical the high representing white degrees (lightness) high).

Shielding of the substrate of the present invention method for coating onto a substrate, can be no special limit the use of well-known coating method, an arbitrary method can be adopted.

It should be explained that, in the use of the invention substrate shielding paint formed between the coating film and the substrate, can also be formed according to the desired use of the invention-containing composite white pigment white the coating film.

Embodiment

The following, listed in the embodiment detailed description of the invention, but the invention is not limited to this.

<embodiment 1>

<复合 白色 颜料 的 制造>

In the three-port flask add benzine 300 ml, and to which is added aluminum particles as a sheet-like base material of the (tradenames: "AluminumpasteCS420   [...] (metal content of 65%, an average particle size of 8 µm), oriental aluminum Corporation systems) 153.8g, and 1st compound as the acrylic acid and soybean oil fatty acid thermal polymerization of a polymeric carboxylic acid (tradenames: " DIACID1550   [...] , Harima chemical Corporation systems) 20.0g, heating and cooling to normal temperature after mixing, filter it, therefore carry on the degreasing process. Therefore, the 1st compound for degreasing treatment sheet-like base material.

Furthermore, as the solvent is added to the mixer the benzine 400 ml, white pigment as a 1st TiO₂ (tradenames: "CR-90-2 the (an average particle size of 0.25 µm) [...] , Ishihara industries Corporation systems) 70.0g, the above-mentioned degreasing the treated sheet substrate 200.0g, the same above mentioned 1st compound 20.0g, and 2nd compound as alicyclic polyamine (tradenames: " AdekastabLA-67 the [...] , corporate ADEKA) 20.0g, in 0-150 ° C for 1 minutes -1 hour of stirring, therefore, 1st white pigment containing compounds and 1st 2nd in the coexistence of a compound attached to the surface of the sheet-like base material of the composite white pigment slurry.

Next, the above-mentioned composite containing white pigment slurry 640g by adding to a benzine 1000 ml of the three-port flask, further adding acrylic acid 1.0g and stirring. Furthermore, adding trimethylolpropane trimethylacetophenone acrylate 30.0g and azobisisobutyronitrile 10.0g respective dissolved in petroleum ether 150 ml solution of the, heating (50-150 ° C) and stirring (30 minutes -8 hours) after cooling to normal temperature, filter it, so as to obtain on the surface of a protective layer of a resin composite white pigment of the present invention.

<基底 涂料 的 制备>

The coating resin (trade name: "ACRIC# 2000Clear   [...] , Kansai Paint Corporation systems) 67.0g, with respect to the resin component 100 parts by mass to 120 parts by weight (phr) of 2nd white pigment as TiO₂ (tradenames: " TIPAQUECR-50 the (an average particle size of 0.25 µm) [...] , Ishihara industries Corporation systems) is added to stainless steel-bottled with the diameter of 2 mm in the ball mill zirconium oxide bead , to 40rpm to make it rotate 3 hours so as to pulverize, obtain the base coating.

<基底 遮蔽 涂料 的 制备>

With respect to the substrate in the coating resin component of 100 parts by mass, to the above-mentioned is the coating of the substrate by adding the above-mentioned composite white pigment 10 parts by weight (phr), the use of mixer uniformly stirred, so as to obtain the base shielding paint.

<涂敷物 的 制造>

The use of an automatic spray gun from the substrate shielding paint to approximates 200cc, atomization pressure 3.0kgf/cm², gun distance 30 cm, room temperature 27 °C, room humidity 45% conditions, and as the matrix of the test paper coating cover power , so as to obtain with on the substrate with the substrate of a coating formed shielding paint coating.

The coating the thickness of the film is 25 µm, measuring the above-mentioned membrane (matrix) when on the film, the visible light transmittance of 0%. Furthermore, the above-mentioned measuring cover power test paper (matrix) when on the film, the X-rite L* value is 87 the above (with reference to the following table 1).

It should be explained that, the above-mentioned L* value using the multi-angle spectral colorimeter (tradenames :" X-RiteMA-68II the [...] , corporate X-Rite) according to table 1 recorded in the measuring angle to be measured. The higher the value of L* value, white degrees that the higher (lightness). Furthermore, visible light transmittance using permeability measuring apparatus (trade name :" Z-1001DP the [...] , making the electric industry co, ltd. of Japan) is measured. The smaller the value of the visible light transmittance, said higher cover power. Furthermore, the thickness of the coating film by using an electromagnetic film thick idea (tradenames :" LE-300J the [...] , Corporation Kett Institute of science systems) to be measured.

<embodiment 2>

In the embodiment 1 in, the substrate shielding paint in the content of the composite white pigment to 20phr, the thickness of the coating film 15 µm, in addition, with all the other embodiment 1 similarly operation, by having on the substrate with the substrate of a coating formed shielding paint coating. For the obtained coating film, with the embodiment 1 similarly measuring visible light transmissivity and X-rite L* value of. The results are shown in table 1 in.

<embodiment 3>

In the embodiment 1 in, the 2nd compound as alicyclic polyamine 20.0g replace for ethylamine 20.0g, in addition, with all the other embodiment 1 similarly operation, by having on the substrate with the substrate of a coating formed shielding paint coating. For the obtained coating film, with the embodiment 1 similarly measuring visible light transmissivity and X-rite L* value of. The results are shown in table 1 in.

<embodiment 4>

In the embodiment 1 in, the 2nd compound as alicyclic polyamine 20.0g replaced for the hexamethylene diamine 20.0g, in addition, with all the other embodiment 1 similarly operation, by having on the substrate with the substrate of a coating formed shielding paint coating. For the obtained coating film, with the embodiment 1 similarly measuring visible light transmissivity and X-rite L* value of. The results are shown in table 1 in.

<comparative example 1>

In the embodiment 1 in, substrate shielding coating does not contain composite white pigment, in addition, with all the other embodiment 1 similarly operation, by having on the substrate with the substrate of a coating formed shielding paint coating. For the obtained coating film, with the embodiment 1 similarly measuring visible light transmissivity and X-rite L* value of. The results are shown in table 1 in.

<comparative example 2>

In the embodiment 1 in, replace substrate shielding paint composite white pigment, which contain 10phr embodiment of 1 the 1st used in white pigment, in addition, with all the other embodiment 1 similarly operation, by having on the substrate with the substrate of a coating formed shielding paint coating. For the obtained coating film, with the embodiment 1 similarly measuring visible light transmissivity and X-rite L* value of. The results are shown in table 1 in.

<comparative example 3>

In the embodiment 1 in, replace substrate shielding paint composite white pigment, which contain 10phr embodiment 1 used in the sheet-like base material, in addition, with all the other embodiment 1 similarly operation, by having on the substrate with the substrate of a coating formed shielding paint coating. For the obtained coating film, with the embodiment 1 similarly measuring visible light transmissivity and X-rite L* value of. The results are shown in table 1 in.

<comparative example 4>

In the embodiment 1 in, replace substrate shielding paint composite white pigment, which contain 10phr of the mica (tradenames :" Iriotec8800   [...] , corporate Merck), in addition, with all the other embodiment 1 similarly operation, by having on the substrate with the substrate of a coating formed shielding paint coating. For the obtained coating film, with the embodiment 1 similarly measuring visible light transmissivity and X-rite L* value of. The results are shown in table 1 in.

By table 1 can be clearly, the substrate of the embodiment of the shielding coating of a coating formed of the film compared with the comparative example, exhibits excellent cover power. Therefore, the substrate of the invention can be confirmed that the shielding coating has excellent cover power.

As mentioned above, the embodiment of this invention described and embodiments, the above-mentioned each embodiment, and a proper of the embodiment of the combination is also initially envisaged.

The disclosed embodiments and examples should be considered in all respect is instantiated, and the content of non- limitation. The scope of the invention and is not a description of the above-mentioned technical scheme, the technical scheme is also intended to include the equivalent meaning and all within the scope of the change.