Anti-slip coating composition, aerosol anti-slip coating

Abstract

To provide a non-slip coating composition that can form a non-slip coat having a high coefficient of friction and further having tackiness added thereto.SOLUTION: A non-slip coating composition according to the present invention contains a binder containing styrene butadiene elastomer and terpene resin, and solvent, where, the binder preferably contains the styrene butadiene elastomer and the terpene resin at a weight ratio of 65:35-95:5. The coating composition preferably contains the binder and the solvent at a weight ratio of 10:90-40:60.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to an anti-slip coating composition and an aerosol anti-slip coating containing the coating composition as a base liquid. [Background technology]

[0002] Conventionally, anti-slip mechanisms have been known that prevent loads from slipping off carts, pallets, etc. when handling loads using the carts, pallets, etc. Examples of anti-slip mechanisms include rubber sheets and anti-slip paints that use glass particles or silica particles as pigments. These prevent the load from slipping off by increasing the coefficient of friction of the surface of the cart, etc. (the surface on which the load is placed) that comes into contact with the load.

[0003] However, the above-mentioned anti-slip mechanism is effective when the frictional force is large, and therefore has the problem that it does not provide sufficient frictional force when handling small or light loads, resulting in a small anti-slip effect.

[0004] In addition, cited document 1 discloses technology related to anti-slip paint, and shows that by mixing foamed silicon carbide particles into the paint, the particles can be made to have a convex shape on building materials, which has the effect of preventing falls and improving workability. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-162758 Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been proposed in view of the above circumstances, and has as its object to provide an anti-slip coating composition that can form an anti-slip coating film having a large coefficient of friction and further having adhesive properties. [Means for solving the problem]

[0007] The present inventors have conducted extensive research to solve the above-mentioned problems, and as a result have found that by preparing a coating composition by dissolving a binder (viscous liquid component) containing a styrene-butadiene elastomer and a terpene resin in a solvent, the coefficient of friction of the formed coating film can be increased, adhesion can be imparted, and an excellent anti-slip effect can be achieved, which led to the completion of the present invention.

[0008] (1) A first aspect of the present invention is an anti-slip coating composition containing a styrene-butadiene elastomer, a binder containing a terpene resin, and a solvent.

[0009] (2) A second aspect of the present invention is an anti-slip coating composition according to the first aspect of the present invention, wherein the binder contains the styrene-butadiene elastomer and the terpene resin in a weight ratio of 65:35 to 95:5.

[0010] (3) A third aspect of the present invention is an anti-slip coating composition according to the first or second aspect of the present invention, which contains the binder and the solvent in a weight ratio of 10:90 to 40:60.

[0011] (4) A fourth aspect of the present invention is an aerosol anti-slip paint comprising a base liquid made of any one of the anti-slip paint compositions of the first to third aspects and a propellant.

[0012] (5) A fifth aspect of the present invention is an aerosol anti-slip paint according to the fourth aspect, wherein the propellant is a liquefied gas or a compressed gas. [Effects of the Invention]

[0013] According to the present invention, it is possible to provide an anti-slip coating composition that can form an anti-slip coating film having a large coefficient of friction and further having adhesive properties. DETAILED DESCRIPTION OF THE INVENTION

[0014] Specific embodiments of the present invention (hereinafter referred to as "present embodiments") will be described in detail below. Note that the present invention is not limited to the following embodiments, and various modifications are possible within the scope of the present invention.

[0015] 1. Anti-slip coating composition The anti-slip coating composition of this embodiment is applied to the surface of a cart or pallet made of a base material such as metal or plastic, i.e., the surface on which the load (material) is placed on the cart, for example, during cargo handling operations using the cart or pallet, to form an anti-slip coating.

[0016] Specifically, the anti-slip coating composition contains a binder and a solvent, and the binder is characterized by containing at least a styrene-butadiene elastomer and a terpene resin.

[0017] By incorporating a binder containing a styrene-butadiene elastomer and a terpene resin, the coefficient of friction of the formed anti-slip coating can be increased primarily by the styrene-butadiene elastomer, while the terpene resin can provide adhesiveness. As a result, when the anti-slip coating is applied to the surface of a cart or the like to form an anti-slip coating, the grip of the anti-slip coating is improved, effectively preventing loads from slipping off the cart or the like.

[0018] [binder] In the anti-slip coating composition, the binder is a viscous liquid component that dissolves in a solvent (described later) to form the composition. When the anti-slip coating composition is applied to a target surface, the solvent volatilizes and an anti-slip coating film consisting mainly of the binder component is formed.

[0019] As described above, the binder is characterized by containing a styrene-butadiene elastomer and a terpene resin, which increases the coefficient of friction of the formed anti-slip coating and provides adhesion, thereby improving the anti-slip effect.

[0020] The binder is not limited to being composed of only two components, the styrene-butadiene elastomer and the terpene resin, but may contain other resins and other components as long as the effects are not impaired.Furthermore, the styrene-butadiene elastomer and the terpene resin are not limited to being composed of only one type each, but may be composed of a combination of multiple types.

[0021] (styrene butadiene elastomer) The styrene-butadiene elastomer is not particularly limited, and conventionally known ones can be used. The weight average molecular weight of the styrene-butadiene elastomer is also not particularly limited, but is preferably in the range of 10,000 to 50,000.

[0022] By including a styrene-butadiene elastomer in the anti-slip coating composition, the coefficient of friction of the anti-slip coating film formed can be effectively increased.

[0023] (terpene resin) Terpene resins are polymers of terpene monomers, such as α-pinene, β-pinene, dipentene, limonene, myrcene, alloocimene, ocimene, α-phellandrene, α-terpinene, γ-terpinene, terpinolene, 1,8-cineole, 1,4-cineole, α-terpineol, β-terpineol, γ-terpineol, and sabinene.

[0024] Terpene resins also include terpene phenolic resins obtained by polymerizing a terpene compound (terpene monomer) and a phenolic compound (phenol monomer) as raw materials, and aromatic modified terpene resins obtained by modifying a terpene resin with an aromatic monomer. Examples of phenolic compounds include phenol, cresol, xylenol, catechol, resorcinol, hydroquinone, and bisphenol A. Examples of aromatic monomers include styrene, α-methylstyrene, p-styrene, 3,4-dimethylstyrene, o-divinylbenzene, p-divinylbenzene, α-chlorostyrene, p-chlorostyrene, 2,4-dichlorostyrene, vinyltoluene, and 1-vinylnaphthalene.

[0025] By including a terpene resin in the anti-slip coating composition, the coefficient of friction of the anti-slip coating film formed can be increased and adhesiveness can be imparted to the film.

[0026] (Weight ratio of styrene butadiene elastomer to terpene resin) In the binder, the styrene-butadiene elastomer and the terpene resin are contained in a weight ratio of preferably 65:35 to 95:5, and more preferably 80:20 to 90:10.

[0027] If the weight ratio of styrene butadiene elastomer to terpene resin is less than 65:35, i.e., if the styrene butadiene elastomer content is low, the adhesion will be too high, which may result in a decrease in film-forming ability and a decrease in durability of the coating.On the other hand, if the weight ratio of styrene butadiene elastomer to terpene resin is greater than 95:5, i.e., if the terpene resin content is low, the adhesion will decrease and the anti-slip effect based on the gripping power of the anti-slip coating may not be fully achieved.

[0028] (additives) The anti-slip coating composition according to the present embodiment can contain various additives to the extent that their effects are not impaired. Specifically, additives can be selected from rust inhibitors, such as neutral metal sulfonates of alkali metal salts, alkaline earth metal salts, and zinc salts, antioxidants, corrosion inhibitors, antifoaming agents, hard-cake inhibitors, anti-settling agents, and various other additives. The content of each of these additives can also be determined arbitrarily depending on the performance required.

[0029] [solvent] The solvent dissolves the binder component to form the coating composition. When the anti-slip coating composition is applied to a target surface, the solvent that constitutes the coating composition volatilizes, forming an anti-slip coating film that is mainly composed of the binder component.

[0030] The solvent is not particularly limited as long as it is an organic solvent that can dissolve and disperse the binder components described above. Specific examples include solvents selected from aliphatic hydrocarbons, alicyclic hydrocarbons, alcohols, glycol ethers, and the like, or any combination thereof. The solvent is preferably an organic solvent selected from aliphatic hydrocarbons, alicyclic hydrocarbons, or any combination thereof, more preferably an alicyclic hydrocarbon such as cyclohexane, methylcyclohexane, or ethylcyclohexane, and particularly preferably methylcyclohexane.

[0031] (weight ratio of binder to solvent) The content of the solvent in the anti-slip coating composition is preferably determined arbitrarily so that the binder component can be dissolved well and an anti-slip coating film having a sufficient anti-slip effect can be formed.

[0032] Specifically, for example, in an anti-slip coating composition, the binder and solvent can be in a weight ratio of 10:90 to 40:60. If the weight ratio of the binder to the solvent is less than 10:90, i.e., if the binder component content is low, the binder can be dissolved well in the solvent, but an anti-slip coating may not be formed properly. Also, a coating with the desired thickness may not be formed. On the other hand, if the weight ratio of the binder to the solvent is greater than 40:60, i.e., if the solvent content is low, the binder component may not be sufficiently dissolved in the solvent.

[0033] ≪2. Aerosol anti-slip paint≫ The anti-slip coating composition described above can be used as a base liquid and combined with, for example, a propellant to produce an aerosol anti-slip coating (agent).

[0034] [Base liquid] The base liquid is an active ingredient in the aerosol anti-slip paint and is composed of the above-mentioned anti-slip paint composition. The details of the anti-slip paint composition are as described above, so further description here is omitted.

[0035] [Propellant] The propellant is used to spray the active ingredients in the aerosol anti-slip paint in the form of an aerosol. The propellant is not particularly limited as long as it is compatible with the anti-slip paint composition (base liquid) and the additives added as needed, and any propellant commonly used in aerosol products can be used.

[0036] Specifically, for example, liquefied gases such as liquefied petroleum gas (LPG) and dimethyl ether (DME), compressed gases such as carbon dioxide gas and nitrogen gas, and propane gas can be used.

[0037] The propellant content can be set appropriately depending on the type of propellant used and the performance required for the intended area. For example, when liquefied gas is used as the propellant, the content can be in the range of approximately 40% to 70% by mass relative to 100% by mass of the total paint. Furthermore, when compressed gas or the like is used as the propellant, the content can be in the range of approximately 0.5% to 5% by mass relative to 100% by mass of the total paint.

[0038] [Additives] In addition to the anti-slip coating composition as the base liquid, various additives can be contained in the aerosol anti-slip coating composition within the range that does not impair the function of the anti-slip coating composition. Specific examples of the additives include rust inhibitors, antioxidants, corrosion inhibitors, anti-foaming agents, hard cake inhibitors, anti-settling agents, etc., similar to the additives described above. [Example]

[0039] The present invention will be explained in more detail below by showing examples, but the present invention is not limited to the following examples in any way.

[0040] [Aerosol anti-slip paints of Examples and Comparative Examples] (Preparation of base solution) Each raw material was dissolved in a solvent to prepare a solution (base solution) so as to obtain the coating composition shown in Table 1 below. A true solvent was selected depending on the raw material so that the raw material would not precipitate. For example, in Example 1, methylcyclohexane was selected as the solvent for styrene butadiene elastomer A (Asaprene T438, manufactured by Asahi Kasei Corporation), and the elastomer was dissolved therein to prepare a 10% concentration solution.

[0041] The following raw materials were used: Styrene butadiene elastomer A: Asaprene T438 (manufactured by Asahi Kasei Corporation) Styrene butadiene elastomer B: Asaprene T126S (manufactured by Asahi Kasei Corporation) Styrene butadiene elastomer C: Asaprene T437 (manufactured by Asahi Kasei Corporation) Styrene butadiene elastomer D: KRATON D1155-JOP (Kraton) Chlorinated polyolefin: Hardlen 13LP (manufactured by Toyobo Co., Ltd.) Chlorosulfonated polyethylene: TOSO-CSM TS-340 (manufactured by Tosoh Corporation) Chloroprene rubber: Cemedine CS4503F (manufactured by Cemedine) Aromatic modified terpene resin: YS Resin TO-125 (Yasuhara Chemical Co., Ltd.) Terpene phenol resin: YS Polyster T160 (Yasuhara Chemical Co., Ltd.)

[0042] (Preparation of aerosol paint) Next, a liquefied gas mixture was prepared by mixing dimethyl ether (DME) and liquefied petroleum gas (LPG) in a weight ratio of 70:30. The base liquid and the liquefied gas mixture were filled into a pressure-resistant container in a ratio of 40:60, and an aerosol component was attached to produce an aerosol paint.

[0043] (Creating test pieces) Polypropylene (75mm x 30mm x 2mm) was prepared, and the prepared aerosol paint was sprayed onto it to a uniform film thickness (10μm). It was then left at room temperature for 1 hour to prepare a test piece with an anti-slip coating.

[0044] [evaluation] The friction coefficient was measured using the prepared test pieces with Tribogear. The sliding angle when the load slid off the anti-slip coating was also measured. The test conditions were as follows: (Measurement of coefficient of friction) Testing machine: Tribogear (surface property testing machine) Counterpart: ABS plate (25mm x 25mm x 2mm) Load: 50g Speed:300mm / min Travel distance: 10mm (Measurement of sliding angle) Testing machine: Applying the sliding mode of an automatic contact angle meter Counterpart: 50g SUS weight Measurement conditions: Increase the angle at 1° / s and measure the angle at which the weight falls

[0045] [result] Table 1 below shows the composition of the paint (binder component composition) and the evaluation results.

[0046] [Table 1]

[0047] As shown in Table 1, in Examples 1 to 8, which contained at least a styrene-butadiene elastomer and a terpene resin as binder components constituting the paint, both the static and dynamic coefficients of friction were high. Furthermore, the sliding angle was also larger than in the comparative example, demonstrating that the sliding of loads could be effectively prevented.

[0048] In Example 8, as described above, both the static and dynamic friction coefficients were high, but the anti-slip coating formed was sticky and had inferior film-forming properties compared to the coatings of the other Examples.

Claims

1. a binder comprising a styrene butadiene elastomer and a terpene resin; a solvent; The binder contains the styrene-butadiene elastomer and the terpene resin in a weight ratio of 65:35 to 80:

20. Anti-slip coating composition.

2. The binder and the solvent are contained in a weight ratio of 10:90 to 40:

60. The anti-slip coating composition of claim 1.

3. A base liquid comprising the anti-slip coating composition of claim 1 or 2; a propellant, Aerosol anti-slip paint.

4. The propellant is a liquefied gas or a compressed gas. The aerosol anti-slip paint according to claim 3.

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