JPH08134378A - Coating material for surface preparation, coating material for finishing and coating material for surface preparation and finishing - Google Patents

Abstract

PURPOSE: To provide a surface preparation coating material having the function of a sealing material and the function of a surface preparation material. CONSTITUTION: This coating material for surface preparation consists of a compounded emulsion composed mainly of an emulsion, an extender pigment and a thickener, having a viscosity value of 10,000-1,000,000cps measured by a Brookfield 8 viscometer at a rotor rotation speed of 20rpm at 20 deg.C and containing 50-99wt.% of residue left after heating at 110 deg.C for 3hr. The coating material has the function of a sealing material to mend the joint or crack and the function of a surface preparation material to form a surface layer and is useful for the preparation of the coating surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating material for adjusting a base, a coating material for a finish, and a coating material for both a base adjustment and a finish, which are composed of an emulsion type compound.

[0002]

2. Description of the Related Art Conventionally, in finishing an outer wall, a sealing material is filled in a joint portion or a crack repairing portion of the outer wall, and after the sealing material is filled, a finishing material is applied to the building for waterproofing. It has improved durability and aesthetics. Usually, different materials are used as the sealing material and the finishing material, and the manufacturers are often different from each other. For this reason, poor adhesion may occur between the sealing material and the finishing material, or the plastic material of the sealing material may migrate to the finishing material, resulting in early contamination of the sealing material portion and an unsightly appearance. There was a chance Sealing material mail
Both the car and the finishing material manufacturers are improving the materials to solve the above problems, but the current situation is that they have not been solved yet. In particular, the same contractor rarely carries out the construction of the sealing material and the construction of the finishing material, and there is a case that the curing period of the sealing material does not depend on the manufacturer's specifications. Usually, hair crack (about 0.5mm)
The main material of the finish coating material is used for repairing the crack width (less than the crack width), but if the crack is large, cut it into a U-shaped cross section and then apply a sealing material to repair it. To be done.

[0003]

As described above, the prior art is as follows.
There is room for improvement in the early adhesion due to mutual adhesion and transfer of plastic material when applying the finishing material after painting the sealing material, and the same operator applies the sealing material and the finishing material. There is room for improvement such as construction not complying with the manufacturer's specifications. Therefore, the present invention has been made to solve the above-mentioned conventional inconvenience, and one coating material has a plurality of functions so that, for example, a sealing material and a base adjusting material can be applied with one coating material. , It is easy to install. That is, an object of the present invention is to provide an undercoat adjusting coating material having a sealing function of a sealing material and an undercoat adjusting function of an undercoat adjusting material. Another object of the present invention is to provide a finishing coating material having a sealing function and a waterproof material function. Further, another object of the present invention is to provide a coating material having both a sealing function, a base adjustment function, and a waterproof material function, which can be used for the base adjustment and the finish coating of the surface to be coated and the finish coating. To provide.

[0004]

In order to solve the above-mentioned problems, the present inventor has found that a sealing material and a base adjusting material, a sealing material and a finishing coating material, or a sealing material and a base adjusting material and a finishing material. As a result of diligent research on each prescription of a material that also serves as a coating material, a coating material that satisfies the sealing material function and can also be used as a base conditioning material, and a finishing material that satisfies the sealing material function A coating material that satisfies the functions of a coating material and a sealing material that can be used and can also be used as a base conditioning material and a finishing coating material can be developed, and the present invention is based on this result.

That is, the invention of claim 1 for attaining the above-mentioned object comprises an emulsion, an extender pigment, and a thickener as main components, and a rotor of a B8 type rotational viscometer at 20 rpm and 20 ° C.
Viscosity value is 1000 to 100000 cps and 110 ℃ 3
It is composed of an emulsion-based compound having a heating residue of 50 to 99% by weight (hereinafter, simply abbreviated as%) for a time, and functions as a sealing material for repairing joints or cracks and forms an underlayer. It has a function of an undercoat adjusting material, and is used for adjusting the undercoat of a surface to be coated.

In order to achieve the above-mentioned object, the invention of claim 2 has an emulsion, an extender pigment, a thickener and a fiber as main components, and has a viscosity value at 20 rpm and 20 ° C. at a rotor of a B8 type rotational viscometer. Is 1000 to 100000 cps, and the residue after heating at 110 ° C for 3 hours is 50 to 99%. It forms a sealing material function for repairing joints or cracks and a waterproof layer. It has a waterproof material function and is used for finish coating of the surface to be painted.

In order to achieve the above-mentioned object, the invention of claim 3 has an emulsion, an extender pigment, a thickener and a fiber as main components, and a rotor of a B8 type rotational viscometer at 20 rpm.
, The viscosity value at 20 ℃ is 1000 to 100000cps, and
It is composed of an emulsion-type compound having a heating residue of 50 to 99% at 110 ° C for 3 hours, and has a function as a sealing material for repairing joints or cracks and a function as a base conditioning material for forming a base layer. It has a waterproof material function for forming a waterproof layer, and is used for adjusting the base of the surface to be coated and for finishing.

The emulsion used in the present invention includes:
Acrylic acid, acrylic acid ester, methacrylic acid, methacrylic acid ester, acrylonitrile, acrylamide, isoprene, styrene, butadiene, ethylene, vinyl chloride, a homopolymer or copolymer such as vinyl acetate.
In the case of 50%, it is 5 to 90%, preferably 10 to 80%. When the emulsion content is less than 5%, various physical properties are deteriorated. If it exceeds 90%, the volatile content increases and the wall thickness decreases. The resin content of the emulsion is not limited to 50%, and it is possible to use, for example, 40% or 60%, in which case the resin content is 50%.
It can be used within the above-mentioned range after being converted so that it becomes the same amount as in the case of%.

As the extender pigment, calcium carbonate, clay, talc, mica, barium sulfate, aluminum hydroxide, titanium oxide and the like are used, and the content thereof is 95% or less, preferably 20 to 20%. 90%. When the content of extender pigment exceeds 95%, various physical properties are poor and the pigment cannot be used. If necessary, a thickener, a dispersant, a film-forming aid, an antifreezing agent, an antifungal agent, an antiseptic agent, or a fiber may be added. The plasticizer can be blended as necessary within a range that does not lead to contamination of the finish coating material.

The heating residue is 50 to 99%, preferably 60 to 90%.
The range of% is good. If the heating residue is 50% or less, the meat becomes thin as a sealing material, and if it exceeds 99%, the elongation becomes poor. The viscosity is 10000 CPS or more, preferably 5000 to 1000, as measured by a B8 type rotational viscometer at 20 rpm and 20 ° C.
It is 000 CPS. If the viscosity is less than 10000 CPS, there is a disadvantage that slack occurs when applied as a sealing material, and if it exceeds 1000000 CPS, it becomes difficult to apply and the workability deteriorates.

[0011]

The features of the present invention are, as described above, the sealing material and the base conditioning material, the sealing material and the waterproof layer for finishing, and the sealing material.
By including the same material for the ring material, the undercoating material and the finish coating material, there is no problem of adhesion between the sealing material and the finish coating material, and early contamination due to transfer of the sealing material to the plastic material. Can be installed by the same builder.

[0012]

Next, embodiments of the present invention will be described. The coating materials of Examples 1, 2 and 3 were prepared with the formulations shown in Table 1. The coating material can be easily prepared by mixing the respective components by a conventional mixing means until they become uniform. The emulsion of Example 1 is Kanebo NSC strain AD80,
The emulsion of Example 2 was a commercial product of Mitsubishi Kagaku BS-FS Co., Ltd. 80DN, and the emulsion of Example 3 was a commercial product of Dainippon Ink and Chemicals Inc. ER405. Kao Corporation's Demol EP was used as the anionic dispersant, Daigen Kogyo Co., Ltd.'s Neugen EA170 was used as the nonionic dispersant, and Rome & Haas Japan strain's primer was used as the thickener. Le ASE 60 was used. The extender pigment has an average particle size of calcium carbonate of 7μ.
And an average particle size of 2 μm was used.

[0013] The viscosity, heating residue and elongation of the prepared coating materials of Examples 1, 2 and 3 were measured and the results are shown in Table 2. Moreover, the filling properties and patterns of the coating materials of Examples 1, 2, and 3 at the time of filling the joints.
Table 2 shows the results of the test of the resin (unevenness pattern) forming property and the substrate adhesion to the mortar substrate and the acrylic resin enamel substrate.

[0014]

The method of measuring viscosity, heating residue and elongation,
The test methods for the joint filling property, the pattern forming property, and the base adhesion property were as follows. Viscosity: Measured at B8H type rotational viscometer, rotor 20 rpm, 20 ° C. Residue after heating: Residue after heating at 110 ° C for 3 hours. Elongation: Measured at 20 ° C according to JIS A6910. Joint filling property: A joint having a width of 1 cm and a depth of 1 cm was filled with a spatula and its workability and slack were investigated. Pattern formability: An uneven pattern is formed on a predetermined plate,
The quality of pattern formation is visually judged. Substrate adhesion: Check the adhesion under standard conditions according to JIS A6910.

On the other hand, a commercially available product was similarly tested as a comparative example. That is, Comparative Example 1 is Ruffton Seal (Suzuka Fine Co., Ltd., product name of sealing material), Comparative Example 2 is Rafton Elastic Plasaf (Suzuka Fine Co., Ltd., product name of substrate conditioning material), Comparative Example 3 Is Ruffton Jumbo (Suzuka Fine Co., Ltd., product name of finish coating material). The test results of Comparative Examples 1, 2, and 3 are shown in Table 3.

[0017]

From Table 2, it is recognized that Example 1 is a coating material having the functions of a sealing material and a finish coating material, and satisfies the elongation, the joint filling property and the pattern forming property.
It can be seen that Example 2 is a coating material having the functions of a sealing material and a base adjusting material, and satisfies the elongation, the joint filling property, and the base adhesion property. Example 3 is a coating material having the functions of a sealing material, a finish coating material and a ground control material, and it can be seen that it satisfies elongation, joint filling property, pattern forming property, and ground adhesion property. On the other hand, Comparative Examples 1 to 3 are existing coating materials and all have only a single function.

[0019]

As described above, according to the first aspect of the present invention, it is possible to perform not only the ceiling but also the good underlayer adjustment on the surface to be coated. According to the invention of claim 2, the ceiling and the waterproof layer can be coated on the surface to be coated. According to the third aspect of the present invention, the same paint can be applied to the surface to be coated to apply the sealing, the base adjustment, and the waterproof layer. In the present invention, since a single coating material has a plurality of functions such as a sealing material and an undercoating material, the coating of the surface to be coated is different from the conventional case in which the coating material having each single function is overcoated. Is easy to construct. According to the present invention, the same contractor can easily perform construction.

Claims (3)

[Claims] 1. An emulsion, an extender pigment, and a thickener as main components, a B8 rotational viscometer rotor 20 rpm, a viscosity value at 20 ° C. of 10,000 to 100,000 cps, and a heating residue of 110 ° C. for 3 hours. It is composed of an emulsion type compounding agent of 50 to 99% by weight, and is a sealant for repairing joints or cracks.
An undercoating coating material having a ring material function and an undercoating material function for forming an underlayer, which is used for the undercoating adjustment of a surface to be coated. 2. A rotor of a B8 type rotational viscometer, which has an emulsion, an extender pigment, a thickener and a fiber as main components, and a rotation speed of 20 rpm,
Viscosity value at 20 ℃ is 1000 to 100000cps, and 110
It consists of an emulsion-type compound whose heating residue for 3 hours at 50 to 99% by weight, and has a sealing material function for repairing joints or cracks and a waterproof material function for forming a waterproof layer. However, it is a finish coating material that is used to finish the surface to be coated. 3. A B8 type rotary viscometer rotor 20 rpm, which comprises an emulsion, an extender pigment, a thickener and a fiber as main components.
Viscosity value at 20 ℃ is 1000 to 100000cps, and 110
It consists of an emulsion-type compound having a heating residue of 50 to 99% by weight for 3 hours at ℃, and has a function as a sealing material for repairing joints or cracks and a function as a base conditioning material for forming a base layer. , A coating material for both base adjustment and finish coating, which has a waterproof material function for forming a waterproof layer and is used for the base adjustment and finish coating of a surface to be coated.