Composition for reducing fugitive dust for spray paint

Abstract

The present invention discloses a composition for preventing fugitive dust for spray paint, which comprises about 5 to 23 parts by weight of a rubber polymer, about 1 to 10 parts by weight of a filler, about 1 to 10 parts by weight of a tackifier, and about 20 to 95 parts by weight of a solvent for dissolving the above components, wherein the rubber polymer comprises about 60 % by weight or more of an acid-resistant rubber polymer. That is, the rubber polymer may contain less than about 40 % by weight of a non-acid-resistant rubber polymer. It is preferable that the above rubber polymer is a mixture of an acid-resistant rubber polymer and a non-acid-resistant rubber polymer in a weight ratio of about 3:1. The above composition may contain a small amount of a coupling agent and a stabilizer as paint additives. The coupling agent may be contained in an amount of about 1 to 3 parts by weight, and the stabilizer may be contained in an amount of about 1 to 3 parts by weight relative to the entire composition.

Description

[Corrected under Rule 26, 18.07.2025]COMPOSITION FOR REDUCING FUGITIVE DUST FOR SPRAY PAINT

[0001] The present invention relates to a spray paint used for painting building materials such as iron plates, interior and exterior walls of buildings, etc. More specifically, the present invention relates to a composition for preventing fugitive dust for spray paint, which significantly reduces fugitive dust by mixing it with paint when spraying paint, and can also be used by mixing it with acidic paint. The present invention also includes a spray paint containing the said composition for reducing fugitive dust.Background

[0002] When painting the interior and exterior walls or ceilings of various buildings or civil engineering structures, specific products (objects) manufactured at industrial sites, and construction materials such as steel plates, the method of spraying liquid paint is widely known. However, when spraying paint, a significant portion of the paint particles are scattered in the form of dust.

[0003] When spraying paint, if the paint particles are scattered, the paint is lost, and the paint particles scattered in the form of dust in the air cause dust pollution problems.

[0004] In order to solve the above problems, the inventor of the present invention developed a composition of a dust suppressant that can be mixed into spray paint and used, and was granted a patent under KR Patent No. 619100. The fugitive dust prevention composition of this patent is composed of about 5 to 23 parts by weight of a rubber polymer, about 1 to 10 parts by weight of a filler, about 1 to 10 parts by weight of a tackifier, and about 20 to 95 parts by weight of a solvent for dissolving the above components. And, the rubber polymer is selected from natural rubber (NR), chloroprene rubber (CR), nitrile butadiene rubber (NBR), and styrene butadiene rubber (SBR), the filler uses an organic filler or an inorganic filler, and the tackifier is selected from phenol resin, alkyd resin, melamine resin, ABS resin, vinyl chloride resin, ketone resin, fluoro-resin, acrylic resin, epoxy resin, xylene resin, and maleic resin. When about 3 to 10 % by weight of the said fugitive dust prevention composition is mixed into paint and used, the fugitive dust during spray painting can be significantly reduced.

[0005] The said fugitive dust prevention composition of the above KR Patent No. 619100 can be applied to all alkaline, neutral or weakly acidic paints. However, the inventor found that it cannot be applied to strongly acidic cases such as zinc paint. That is, in strongly acidic paints, a problem occurred in which the fugitive dust prevention composition (anti-fugitive dust composition) is hardened. In particular, a problem occurs in which the rubber polymer component, which is the main component of the anti-fugitive dust composition, hardens making spraying impossible.

[0006] The inventor of the present invention noticed the above-mentioned problems of the anti-fugitive dust composition of the above KR Patent No. 619100, and developed a new anti-fugitive dust composition of the present invention that can also be used in strongly acidic paints.Summary of the Invention

[0007] The objective of the present invention is to provide a composition for preventing fugitive dust from flying away when spraying paint, which can be mixed into paint to prevent air pollution problems as much as possible.

[0008] Another objective of the present invention is to provide a composition for preventing fugitive dust, which can contribute to cost reduction by minimizing paint loss by preventing fugitive dust from being generated when spraying paint as much as possible.

[0009] Still a further objective of the present invention is to provide a spray paint composition capable of significantly reducing fugitive dust by mixing the fugitive dust prevention composition of the present invention with paint.

[0010] Stille a further objective of the present invention is to provide a composition for preventing fugitive dust that can be used not only for alkaline, neutral or weakly acidic paints but also for strongly acidic paints such as zinc paints to significantly reduce fugitive dust.

[0011] The above and other objectives of the present invention can be achieved by the present invention which will be described below.

[0012] A composition for preventing fugitive dust for spray paint according to the present invention comprises about 5 to 23 parts by weight of a rubber polymer, about 1 to 10 parts by weight of a filler, about 1 to 10 parts by weight of a tackifier, and about 20 to 95 parts by weight of a solvent for dissolving the above components, wherein the rubber polymer comprises about 60 % by weight or more of an acid-resistant rubber polymer. That is, the rubber polymer may contain less than about 40 % by weight of a non-acid-resistant rubber polymer. It is preferable that the above rubber polymer is a mixture of an acid-resistant rubber polymer and a non-acid-resistant rubber polymer in a weight ratio of about 3:1. The above composition may contain a small amount of a coupling agent and a stabilizer as paint additives. The coupling agent may be contained in an amount of about 1 to 3 parts by weight relative to the total composition, and the stabilizer may be contained in an amount of about 1 to 3 parts by weight relative to the total composition.

[0013] The acid-resistant rubber polymers include chlorosulfonated polyethylene (CSP) and fluororubber (FR), and the non-acid-resistant rubber polymers include natural rubber (NR), chloroprene rubber (CR), nitrile butadiene rubber (NBR), and styrene butadiene rubber (SBR).

[0014] The anti-fugitive dust composition of the present invention can be used not only for alkaline, neutral or weakly acidic spray paints but also for strongly acidic spray paints such as zinc paints. The above-mentioned anti-fugitive dust composition is mixed into spray paint in a range of about 3 to 10 % by weight when used

[0015] Hereinafter, the specific details of the present invention will be described below.

[0016] The composition of the present invention for preventing fugitive dust can prevent air pollution problems by preventing fugitive dust generated when spraying paint to the greatest extent possible, contribute to cost reduction by reducing paint loss due to fugitive dust, and has the effect of being usable not only for alkaline, neutral, or weakly acidic paints but also for strongly acidic paints.Detailed Description of the Invention

[0017] The present invention relates to a composition for preventing fugitive dust, which significantly reduces fugitive dust when mixed into paint and used in painting building materials such as iron plates, interior and exterior walls of buildings, etc. with spray paint, and which can be used not only in alkaline, neutral, or weakly acidic paints but also in strongly acidic paints.

[0018] A composition for preventing fugitive dust for spray paint according to the present invention comprises about 5 to 23 parts by weight of a rubber polymer, about 1 to 10 parts by weight of a filler, about 1 to 10 parts by weight of a tackifier, and about 20 to 95 parts by weight of a solvent for dissolving the above components, wherein the rubber polymer comprises about 60 % by weight or more of an acid-resistant rubber polymer. That is, the rubber polymer may contain less than about 40 % by weight of a non-acid-resistant rubber polymer. It is preferable that the above rubber polymer is a mixture of an acid-resistant rubber polymer and a non-acid-resistant rubber polymer in a weight ratio of about 3:1. The above composition may contain a small amount of a coupling agent and a stabilizer as paint additives. The coupling agent may be contained in an amount of about 1 to 3 parts by weight relative to the total composition, and the stabilizer may be contained in an amount of about 1 to 3 parts by weight relative to the total composition.

[0019] The anti-fugitive dust composition of KR Patent No. 619100 can be used by mixing it with alkaline, neutral or weakly acidic paint. However, in the case of strongly acidic paints such as zinc paint, there was a problem in which the anti-fugitive dust composition hardened. In particular, the rubber polymer component, which is the main component of the anti-fugitive dust composition, hardens and cannot be sprayed. To solve these problems, the rubber polymer of the present invention must contain at least about 60 % by weight of an acid-resistant rubber polymer. That is, the rubber polymer may contain less than about 40 % by weight of a non-acid-resistant rubber polymer. When the acid-resistant rubber polymer content is less than about 60 % by weight, the paint begins to harden.

[0020] The above acid-resistant rubber polymers include chlorosulfonated polyethylene (CSP) and fluororubber (FR). Chlorosulfonated polyethylene is a rubber elastomer containing about 25 to 43 % by weight chlorine and about 0.9 to 1.3 % by weight sulfur, and has excellent acid resistance and color stability. Fluororubber also has excellent acid resistance, corrosion resistance, and heat resistance. Non-acid-resistant rubber polymers include natural rubber (NR), chloroprene rubber (CR), nitrile-butadiene rubber (NBR), and styrene-butadiene rubber (SBR).

[0021] All commonly used organic or inorganic fillers can be used as fillers. It is desirable to use a filler that has good compatibility with rubber polymers.

[0022] A tackifier is a component that improves the adhesion of paint particles to be sprayed, and a resin component as a tackifier is preferably used. When mixing, a resin that carries electricity to counteract the static electricity of the rubber polymer is preferable, and such resins include phenol resin, alkyd resin, melamine resin, ABS resin, vinyl chloride resin, ketone resin, fluoro-resin, acrylic resin, epoxy resin, xylene resin, maleic resin, etc.

[0023] As a coupling agent, a silane coupling agent or a titanium coupling agent is effective, and as a stabilizer, a heat stabilizer and a UV stabilizer are used to increase the heat stability and UV stability of the paint to be applied. Of course, coupling agents and stabilizers are optional components in the anti-fugitive dust composition of the present invention. If the paint composition contains a sufficient amount of coupling agent or stabilizer or if such properties are not required, coupling agent or stabilizer may not be used.

[0024] A thinner can be preferably used as a solvent for mixing the above rubber polymer, filler, tackifier, coupling agent, stabilizer, etc.

[0025] The anti-fugitive dust composition of the present invention can be used not only for alkaline, neutral or weakly acidic spray paints but also for strongly acidic spray paints such as zinc paints. The above-mentioned anti-fugitive dust composition is mixed into spray paint and used in a range of about 3 to 10 % by weight.

[0026] It was shown that the spray paint containing the anti-fugitive dust composition of the present invention has the effect of reducing the amount of fugitive dust by about 50 to 80% compared to conventional spray paint not containing it.

[0027] The above components can be prepared by adding them together to a solvent, thinner, and mixing them in a mixer, and this method can be easily performed by a person skilled in the art to which the present invention belongs.

[0028] The task can also be performed in stages for more efficient mixing. For example, a tackifier can be added to a rubber polymer and mixed, then filler and thinner can be added to the mixture and mixed, and finally, a necessary coupling agent and / or stabilizer can be added and mixed to produce a final composition.

[0029] The present invention will be further specified by the following examples, which are merely specific embodiments of the present invention and are not intended to limit or restrict the scope of the protection of the present invention.

[0030] Examples 1-5: Preparation of a composition for preventing fugitive dust

[0031] A composition of an anti-dust agent for spray paint according to Examples 1-5 was prepared according to the composition in Table 1 below.

[0032] Example 1Example 2Example 3Example 4Example 5Solvent (thinner)7070707070Filler77777Tackifier77777Rubber polymerAcid resistant16131084Non-acid resistant036812

[0033] In the compositions of Examples 1-5, 70 parts by weight of thinner as a solvent, 7 parts by weight of filler, 7 parts by weight of phenol resin as a tackifier, and 16 parts by weight of rubber polymer were mixed. In Examples 1-5, chlorosulfonated polyethylene (CSP) was used as an acid-resistant rubber polymer, and chloroprene rubber (CR) was used as a non-acid-resistant rubber polymer, and the experiment was conducted while changing the contents of these components.Examples 6-10: Preparation of paints for spraying

[0034] 7 parts by weight of the anti-fugitive dust composition prepared in Examples 1-5 was mixed with 93 parts by weight of a strongly acidic zinc paint to prepare spray paints corresponding to each of Examples 6-10, respectively. In Examples 6-8, wherein the acid-resistant rubber polymer was contained in an amount of 60 % by weight or more within the rubber polymer, the paint did not harden. However, in Examples 9-10, wherein the acid-resistant rubber polymer was contained in an amount of less than 40 % by weight within the rubber polymer, the paint hardened.

[0035] Since the anti-fugitive dust composition of the present invention contains an acid-resistant rubber polymer in an amount of 60 % by weight or more based on the total rubber polymer, even if it is mixed with a strongly acidic spray paint, the paint does not harden.

[0036] Simple modifications or changes of the present invention can be easily utilized by those skilled in the art, and all such modifications or changes can be considered to be included in the scope of the present invention.

Claims

1.An anti-fugitive dust composition for spray paint comprising about 5 to 23 parts by weight of a rubber polymer, about 1 to 10 parts by weight of a filler, about 1 to 10 parts by weight of a tackifier, and about 20 to 95 parts by weight of a solvent for dissolving the above components, wherein the rubber polymer comprises about 60 % by weight or more of an acid-resistant rubber polymer.2.The composition of claim 1, wherein the rubber polymer contains less than about 40 % by weight of a non-acid-resistant rubber polymer.3.The composition of claim 2, wherein the acid-resistant rubber polymer is chlorosulfonated polyethylene (CSP) or fluoro rubber (FR), and the non-acid-resistant rubber polymer is natural rubber (NR), chloroprene rubber (CR), nitrile butadiene rubber (NBR), or styrene butadiene rubber (SBR).4.The composition of claim 3, wherein the acid-resistant rubber polymer and the non-acid-resistant rubber polymer are mixed in a weight ratio of about 3:1.5.The composition of claim 3, further comprising about 1 to 3 parts by weight of a coupling agent or about 1 to 3 parts by weight of a stabilizer based on the entire composition.6.A spray paint composition wherein about 3 to 10 % by weight of the composition of any of the claims 1-5 is mixed into a spray paint.7.The composition of claim 6, wherein the spray paint is alkaline, neutral, or acidic.