JPS6212932B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to agricultural vinyl chloride resin coating materials. More specifically, it has excellent weather resistance,
The present invention also relates to an agricultural vinyl chloride resin coating material that has an excellent effect of suppressing fog generation near the inner surface of the coating material and has an excellent sustainability of the effect. Agricultural vinyl chloride resin coating materials in film or sheet form are currently popular because they have excellent heat retention, transparency, strength, workability, etc., and are relatively inexpensive compared to other agricultural coating materials. It has become a typical agricultural covering material. However, since the base resin of vinyl chloride resin coating materials is hydrophobic, when used as a coating material in the form of a film or sheet, water vapor inside a greenhouse or tunnel comes into contact with the inner surface of the coating material. Here, it condenses into fine water droplets,
It has the disadvantage that it adheres to the inner surface of the dressing. Water droplets that adhere to the inner surface of the covering material not only obstruct the penetration of sunlight into the greenhouse or tunnel, but also fall onto the plants being cultivated, damaging them and even causing disease. Become. In order to solve the above-mentioned drawbacks of vinyl chloride resin coating materials, hydrophilic substances are applied to the surface of the coating material,
Methods have been adopted in which an antifogging agent is blended with a base resin to form a film or sheet to uniformly wet the inner surface of the coating material, or to quickly flush away water droplets that have condensed and adhered to the inner surface of the coating material. In particular, the latter method of blending an antifogging agent into a base resin to form a film or sheet has been widely adopted. The antifogging agents used in this technique are generally polyhydric alcohol higher fatty acid esters such as glycerin or sorbitan. however,
Even under a covering material containing such an antifogging agent, if there is a large temperature difference between the inside and outside of the covering material, a phenomenon in which fog is generated near the inner surface of the covering material is often observed. This fog phenomenon often occurs in late autumn or winter, which is the most important period for greenhouse cultivation, tunnel cultivation, and other facility cultivation. The exact cause of the fog phenomenon is not known, but the temperature inside the greenhouse or tunnel,
Humidity, temperature of the soil inside the house or tunnel, moisture content, amount of solar radiation to the house or tunnel, degree of hydrophilicity of the wet surface of the covering material, etc. all interact subtly, and the humidity inside the house or tunnel causes temperature changes. It is presumed that this is due to the fact that the moisture adheres smoothly to the surface of the coating material and does not flow, and some of the moisture becomes atomized near the inner surface of the coating material. According to observations by the present inventors, it has been found that such a fog generation phenomenon occurs near the ground surface in a greenhouse or tunnel, near cultivated plants, and near the inner surface of the covering material. Furthermore, the cladding material and the inner surface of the cladding material are cooled by the drop in outside temperature, creating a temperature difference between them and the inside of the house, and the warm, humid air inside the house is moved near the inner surface of the cladding material due to natural convection. It has been found that when moving, water vapor that cannot be contained in the air condenses into minute water droplets, which become mist and spread inside the house or tunnel by natural convection. If the mist-like minute water droplets that are once generated evaporate and disappear again during natural convection, the fog will not spread into the house or tunnel, but if the rate of evaporation and disappearance is slow, the fog will spread throughout the house or tunnel. It was also found that there was a thick fog. Such fog generation phenomenon wets the leaves, stems, flowers, fruits, etc. of useful crops grown in greenhouses or tunnels, causing the occurrence of diseases or even aiding the spread of diseases. Also, if the cultivated crops become wet, the heat necessary to dry them is required, which causes disadvantages such as the need for more fuel for heating the greenhouse or tunnel. Furthermore, since the visibility inside the greenhouse becomes poor, there are also disadvantages such as a decrease in the efficiency of agricultural work. In order to overcome these disadvantages, conventional methods have been to use colored synthetic agricultural resin films or cover the soil inside greenhouses or tunnels with mulching film in order to soften temperature changes inside greenhouses or tunnels. Reduce water evaporation by reducing water evaporation, improve irrigation time (for example, watering later in the evening, adjust the area and amount of water to be watered, etc.), and improve irrigation methods and equipment. Such measures have been taken. However, neither method was effective in completely suppressing the fog generation phenomenon. Regarding a method of suppressing the generation of fog near the inner surface of a covering material when agricultural covering material is used, a technique of blending a fluorine-containing surfactant into a base synthetic resin is described in JP-A-57-14648. is proposed. According to experiments conducted by the present inventors, when a covering material containing a fluorine-based surfactant is spread on an outdoor greenhouse, the effect of suppressing fog generation is remarkable immediately after spreading, but after long-term use, It has been found that there is a drawback that the fluorine-based surfactant is washed away or decomposed, and the fog generation suppressing effect is not sustained. In order to maintain the fog generation suppressing effect, it is possible to increase the amount of fluorine-based surfactant added, but this may cause problems such as lowering the transparency of the film or sheet or discoloring the film or sheet. , Additives plate out during film or sheet production (additives precipitate on the roll surface when forming into a film by calendar molding)
occurs, significantly deteriorating the appearance of the film or sheet. Furthermore, if a large amount is added, bleed-out (the additive blowing out on the surface of the film or sheet) may occur, causing the films or sheets to adhere to each other and making it difficult to separate the adhered films or sheets. I found out. By the way, in order to prevent photodeterioration of vinyl chloride resin films or sheets used as coating materials for greenhouses or tunnels due to sunlight, etc., ultraviolet absorbers and/or antioxidants are added to the base resin. The technology has been widely adopted (e.g., Special Publication No. 48-37459, Special Publication No. 47383, No. 53)
Please refer to the publication number etc. ). However, according to the experiments of the inventor of the present invention, although these conventionally proposed techniques improve weather resistance slightly, they do not achieve a sufficiently satisfactory effect of improving weather resistance. I found out. The present inventor has conducted intensive studies with the aim of providing an agricultural vinyl chloride resin coating material that has excellent weather resistance and a long-lasting effect of suppressing fog generation near the inner surface of the coating material. , which led to the completion of the present invention. However, the gist of the present invention is that per 100 parts by weight of vinyl chloride resin, 1 to 10 parts by weight of tricylenyl phosphate and 0.5 to 0.5 parts by weight of epoxy compound.
7 parts by weight and 0.01 to 2 parts by weight of a fluorine-containing compound and formed into a film or sheet.It has excellent weather resistance, has an effect of suppressing fog generation near the inner surface of the coating material, and has a long-lasting effect. It is an agricultural vinyl chloride resin coating material with excellent properties. The present invention will be explained in detail below. In the present invention, the vinyl chloride resin includes not only polyvinyl chloride but also copolymers containing vinyl chloride as a main component. Monomers that can be copolymerized with vinyl chloride include vinylidene chloride, ethylene, propylene, acrylonitrile,
Examples include vinyl acetate, maleic acid, itaconic acid, acrylic acid, methacrylic acid, but are not limited to the examples. The vinyl chloride resin may be produced by any of the conventionally known production methods such as suspension polymerization, emulsion polymerization, emulsion-suspension polymerization, solution polymerization, and bulk polymerization. In the tricylenyl phosphate that can be used in the present invention, the two methyl groups on each of the three benzene rings may be located at any position relative to each other. The blending amount of tricylenyl phosphate is 1 to 10 parts by weight per 100 parts by weight of vinyl chloride resin. If the amount of tricylenyl phosphate is less than 1 part by weight, the weather resistance of the vinyl chloride resin film will not improve even if it is used in combination with an epoxy compound. On the other hand, if the amount of tricylenyl phosphate is more than 10 parts by weight, other physical properties during and after film molding, such as processability and heat resistance, will decrease, and the weather resistance improvement effect will gradually decrease. Undesirable. The preferred range of blending amount is 3 to 7 parts by weight. In the present invention, the epoxy compounds include epoxidized soybean oil, epoxidized linseed oil, epoxidized fish oil, epoxidized tall oil fatty acid ester, epoxidized tallow oil, epoxidized polybutadiene, epoxy methyl stearate, -butyl, -2-ethylhexyl, -stearyl, tris(epoxypropyl) isocyanurate, epoxidized castor oil,
Epoxidized safflower oil, epoxidized linseed oil butyl fatty acid, 3-(2-xenoxy)-1,2-
Epoxypropane, bisphenol-A diglycidyl ether, vinylcyclohexene diepoxide, dicyclopentadiepoxide, 3,4-
Examples include epoxycyclohexyl-6-methylepoxycyclohexanecarboxylate. The blending amount of these epoxy compounds is 0.5 to 7 parts by weight per 100 parts by weight of vinyl chloride resin. If the amount of the epoxy compound blended is less than 0.5 part by weight, even if tricylenyl phosphate is used in combination, not only the desired improvement in weather resistance cannot be expected, but also the heat resistance during and after film molding. This results in a decrease in On the other hand, if the amount of the epoxy compound exceeds 7 parts by weight, bleed-out will occur and the films will stick to each other, making it difficult to remove the films that have adhered to each other. Further, when the film is used to cover a house or a tunnel, dirt, dust, etc. adhere to the adhesive substance that has bleed out, causing contamination, and the light transmittance of the film is significantly reduced. Furthermore, the problem arises that the weather resistance of the film is significantly reduced due to harmful components adhering to the film surface. A particularly preferred amount of the epoxy compound is 2 to 5 parts by weight. According to the present invention, a fluorine-containing compound is added and blended into a synthetic resin agricultural covering material. Examples of fluorine-containing compounds include compounds represented by the following general formula. (1) RfBF In this formula, Rf represents a fluorinated hydrocarbon in which some or all of the hydrogen atoms of an alkyl group are replaced with fluorine atoms, and B represents -CO- or -SO ₂ -. These Rf and B have the same meaning in the following general formula. (2) RfOH (3) In this formula, R ¹ represents -C ₂ H ₄ -, -C ₃ H ₆ -, R ² represents a hydrogen atom or a lower alkyl group, and n represents an integer. These R ¹ and R ² have the same meaning in the following general formula. (Four) In this formula, a represents an integer. (Five) In this formula, both b and c represent integers. (6) RfCOOM In this formula, M represents a hydrogen atom, an alkali metal, an alkaline earth metal, or -NH ₄ . M has the same meaning also in the following general formula. (7) (8) (9) RfSO ₃ M (10) RfCH ₂ OC _n H _2n SO ₃ M In this formula, m represents an integer. (11) In this formula, R'f represents a fluorinated hydrocarbon which may not be the same as Rf, in which some or all of the hydrogen atoms of an alkyl group are replaced with fluorine atoms. (12) (13) In this formula, R ² ′ and R ² ″ represent a hydrogen atom or a lower alkyl group which may not be the same as R ² .
R ² ′ and R ² ″ do not have to be the same. HX represents an acid. R ² ′ and R ² ″ have the same meaning in the following general formula. (14) In this formula, X represents a halogen acid group. (15) (16) The above-mentioned fluorine-containing compounds can be used alone or in combination of two or more. The amount of this fluorine-containing compound added to the synthetic resin agricultural coating material is not critical and can be varied over a wide range depending on the type of fluorine-containing compound to be blended and the type of vinyl chloride resin. can. In general, the amount can be at least 0.01 part by weight per 100 parts by weight of vinyl chloride resin, and although the upper limit of the blending amount is not strictly limited, if it is blended in too large a amount,
Usually, 2.0 parts by weight or less is sufficient since problems such as bleed-out to the surface of the coating material, coloring of the coating material itself, and reduction in transparency may occur. The preferred range of blending amount is 0.02 per 100 parts by weight of synthetic resin material.
~1.0 parts by weight. As described above, the agricultural vinyl chloride resin coating material according to the present invention includes a vinyl chloride resin as a base, tricylenyl phosphate as a first component, an epoxy compound as a second component, and an epoxy compound as a third component. However, before forming into a film or sheet, other resin additives such as plasticizers, lubricants, heat stabilizers, antioxidants, ultraviolet absorbers, etc. may be added as necessary. Pigments, dyes, etc. can be added. Examples of plasticizers that can be used include phthalic acid derivatives such as di-n-octyl phthalate, di-2-ethylhexyl phthalate, dibenzyl phthalate, diisodecyl phthalate, didodecyl phthalate, and diundecyl phthalate; and diisooctyl isophthalate. Isophthalic acid derivative; G-n
- Adipic acid derivatives such as butyl adipate and dioctyl adipate; maleic acid derivatives such as di-n-butyl maleate; citric acid derivatives such as tri-n-butyl citrate; itaconic acid derivatives such as monobutyl itaconate; butyl oleate, etc. Oleic acid derivatives; examples include ricinoleic acid derivatives such as glycerin monoricinoleate. The above plasticizers may be used alone or in combination of 30 to 30 parts by weight per 100 parts by weight of vinyl chloride resin.
It is blended in a range of 60 parts by weight. The antistatic agent or antifogging agent that can be incorporated into the coating material of the present invention is mainly a nonionic surfactant, such as sorbitan surfactants such as sorbitan monostearate, sorbitan monopalmitate, and sorbitan monobenzoate. agent;
Glycerin-based surfactants such as glycerin monolaurate, diglycerin monopalmitate, and glycerin monostearate; Polyethylene glycol-based surfactants such as polyethylene glycol monostearate and polyethylene glycol monopalmitate; Alkylene oxide adducts of alkyl phenols ; Examples include esters of sorbitan/glycerin condensates and organic acids. These surfactants can be used alone or in combination of two or more. Examples of lubricants or heat stabilizers that can be incorporated into the coating material according to the present invention include polyethylene wax,
Liquid paraffin, stearic acid, zinc stearate, fatty alcohol, calcium stearate,
barium stearate, barium ricinoleate,
Examples include dibutyltin dilaurate, dibutyltin dimaleate, phenols, organic phosphorite compounds, β-diketone compounds, and piperidine-based hindered amine compounds. Specific examples of organic phosphite compounds include:
Examples include compounds represented by the following general formula () or (). That is, (In the formula, R ₁ , R ₂ and R ₃ each represent alkyl, aryl, arylalkyl, alkylaryl, or an alkyl group having an ether bond.) Examples of alkyl groups constituting acid zinc salts include methylethyl, propyl, isopropyl,
Butyl, isobutyl, sec-butyl, tertiary-butyl,
amyl, neobentyl, isoamyl, hexyl,
Isohexyl, heptyl, octyl, isooctyl, 2-ethylhexyl, decyl, isodecyl,
lauryl, tridecyl, _C12 - _C15 mixed alkyl,
stearyl, cyclopentyl, cyclohexyl,
Examples include cyclooctyl, cyclododecyl, 4-methylcyclohexyl and the like. Examples of aryl groups include phenyl, naphthyl, and the like. Examples of arylalkyl groups include benzyl, β-phenylethyl, γ-phenylpropyl, β-phenylpropyl, and the like. Examples of alkylaryl groups include tolyl, xylyl, ethyl phenyl, butylphenyl, tert-butylphenyl, octylphenyl, isooctyl phenyl, tert-octylphenyl, nonylphenyl, 2,4-di-tert-butylphenyl, and the like. Examples of the alkyl group having an ether bond include furfuryl, tetrahydrofurfuryl, 5-methylfurfuryl, and α-methylfurfuryl, or methyl, ethyl, isopropyl, butyl,
Isobutyl, hexyl, cyclohexyl, phenyl cellosolve residue; Methyl, ethyl, isopropyl, butyl, isobutyl carbitol residue; Triethylene glycol monomethyl ether, -monoethyl ether, -monobutyl ether residue; Glycerin 1,2-dimethyl ether, -1,3-dimethyl ether, -1,3-diethyl ether, -1-ethyl-2-propyl ether residues; nonylphenoxypolyethoxyethyl, lauroxypolyethoxyethyl groups, etc. It will be done. These organic phosphite compounds preferably have a melting point of 150 to 230°C and an apparent specific volume of 3 to 15 ml/g. Examples of piperidine-based hindered amine compounds include compounds represented by the following general formula (). That is, [In the () formula, R ₄ to ₇ represent an alkyl group having 1 to 4 carbon atoms, n represents an integer of 1 to 4, and R represents a mono- to tetraacyl group derived from a mono- to tetravalent carboxylic acid. ] This is a compound represented by The hindered amine compound represented by the above formula () includes 4-acetoxy-2,2,6,
6-tetramethylpiperidine, 4-stearoyloxy-2,2,6,6-tetramethylpiperidine, 4-acryloyloxy-2,2,6,6-
Tetramethylpiperidine, 4-(phenylacetoxy)-2,2,6,6-tetramethylpiperidine, 4-(phenoxyacetoxy)-2,2,
6,6-tetramethylpiperidine, 4-cyclohexanoyloxy-2,2,6,6-tetramethylpiperidine, 4-benzoyloxy-2,2,
6,6-tetramethylpiperidine, 4-(o-chlorobenzoyloxy)-2,2,6,6-tetramethylpiperidine, 4-(m-chlorobenzoyloxy)-2,2,6,6-tetramethyl Piperidine, 4-(p-chlorobenzoyloxy)-
2,2,6,6-tetramethylpiperidine, 4-
(o-toluoyloxy)-2,2,6,6-tetramethylpiperidine, 4-isonicotinoyloxy-2,2,6,6-tetramethylpiperidine, 4-(2-furoyloxy)-2,2 ,6,
6-tetramethylpiperidine, 4-(β-naphthoyloxy)-2,2,6,6-tetramethylpiperidine, bis(2,2,6,6-tetramethyl-4-piperidyl)oxalate, bis(2 ，
2,6,6-tetramethyl-4-piperidyl)malonate, bis(2,2,6,6-tetramethyl-4-piperidyl)adipate, bis(2,2,
6,6-tetramethyl-4-piperidyl) sebagate, bis(2,2,6,6-tetramethyl-4
-piperidyl) fumarate, bis(2,2,6,
6-tetramethyl-4-piperidyl)hexahydrophthalate, bis(2,2,6,6-tetramethyl-4-piperidyl)terephthalate, tris(2,2,6,6-tetramethyl-4-piperidyl)benzene -1,3,5-tricarboxylate, tris(2,2,6,6-tetramethyl-4
-piperidyl)triazine-2,4,6-tricarboxylate, tris(2,2,6,6-tetramethyl-4-piperidyl)nitrilotriacetate, tris(2,2,6,6-tetramethyl-
4-piperidyl)butane-1,2,3-tricarboxylate, tetrakis(2,2,6,6-tetramethyl-4-piperidyl)propane-1,
1,2,3-tetracarboxylate, tetrakis(2,2,6,6-tetramethyl-4-piperidyl)butane-1,2,3,4-tetracarboxylate, tetrakis(2,2,6,6 -tetramethyl-4-piperidyl)propane-1,1,
3,3-tetracarboxylate, tetrakis(2,2,6,6-tetramethyl-4-piperidyl)ethene-1,1,2,2-tetracarboxylate, tris(2,2,6,6-tetra Methyl-4-piperidyl)-2-acetoxypropane-
1,2,3-tricarboxylate, tris(2,2,6,6-tetramethyl-4-piperidyl)-2-hydroxy-propane-1,2,3-
Examples include tricarboxylate. Examples of ultraviolet absorbers that can be incorporated into the coating material of the present invention include hydroquinone ultraviolet absorbers, salicylic acid ultraviolet absorbers, benzophenone ultraviolet absorbers, bendtriazole ultraviolet absorbers, and the like. The amounts of the above various resin additives excluding plasticizers are as follows:
The amount can be selected within the range of 0.1 to 5 parts by weight based on 100 parts by weight of the vinyl chloride resin. In order to blend the first component, second component, third component, and other resin additives if necessary, into the base vinyl chloride resin, mixing techniques,
For example, ribbon blender, Banbury mixer,
A method using a supermixer or other compounding machine or mixer can be adopted. In order to manufacture the coating material according to the present invention, a composition is prepared by mixing a first component, a second component, a third component, and, if necessary, various resin additives with a vinyl chloride resin as a base. It is formed into a film or a sheet by a film-forming or sheet-forming technique known per se. Known film forming techniques include calendar molding, T-die extrusion, inflation molding, and solution casting. The film or sheet may be transparent, satin finished, semi-matte finished, or the like. If the thickness of the coating material according to the present invention is too thin, the strength will be insufficient, which is undesirable.On the other hand, if it is too thick, it will be difficult to form a film, and the subsequent handling (cutting the film and joining it into a house shape, etc.) The range of 0.05 to 0.5 mm, particularly preferably 0.075 mm, is
It is preferable to set it in the range of ~0.3mm. As described above, the covering material according to the present invention can be used for cultivating useful plants by covering greenhouses, tunnels, etc. in the same manner as conventionally used as covering materials for greenhouses or tunnels. . The agricultural vinyl chloride resin coating material according to the present invention exhibits the following effects and has extremely great agricultural utility value. (1) When the agricultural vinyl chloride resin coating material according to the present invention is used to cover agricultural greenhouses or tunnels, fog generation near the inner surface of the coating material is avoided, as is clear from the examples below. effectively suppressed. Its suppressive effect is extremely strong, and it can virtually completely suppress the occurrence of fog even in late autumn and winter, when it has traditionally been said that fog occurs frequently, and it has a remarkable effect on preventing the occurrence and spread of diseases on useful plants. be. (2) The agricultural vinyl chloride resin coating material according to the present invention uses tricylenyl phosphate and an epoxy compound in combination, so there is no change in appearance even when used outdoors for a long time, and the coating material remains unchanged. There is little decrease in strength and it has excellent weather resistance. (3) The agricultural vinyl chloride resin coating material according to the present invention maintains its fog generation suppressing effect over a long period of time due to the synergistic action of the three components blended into the base resin. (4) In the agricultural vinyl chloride resin coating material according to the present invention, the amounts of the three components to be combined are selected within a specific range, so the transparency of the coating material is not sacrificed, and the additive plate Problems such as out and bleed out do not occur. Hereinafter, the present invention will be explained in detail based on Examples, but the present invention is not limited to the following examples unless it exceeds the gist thereof. Examples 1 to 10, Comparative Examples 1 to 6

[Table] Quantity

[Table] Listed in the table.
The raw materials and resin additives were weighed. After mixing these with a super mixer for 10 minutes,
The mixture was kneaded on a roll heated to 180°C, and a film with a thickness of 0.1 mm was produced using an L-shaped calender. A fog generation test and a weather resistance evaluation test were conducted on the 16 types of films produced as described above using the following methods. (1) Fog generation test A field with a width of 5.4 m and a ridge height of 3 was installed in Isshi District, Mie Prefecture.
16 pipe houses with a length of 15 m and a depth of 15 m were constructed, each of which was coated with one of the above films (11/1980).
10th of the month). While growing spinach inside the greenhouse, we visually observed and evaluated the occurrence of fog inside the greenhouse. The fog generation status was evaluated for 5 days immediately after covering the pipe house with film (November 17, 1980).
(Sunday to November 21st), 5 months after coating
days (February 16 to February 20, 1981), and 5 days 12 months after coating (November 1981)
It was held three times from the 16th to November 20th. The degree of fog occurrence was observed 12 times a day every hour from 7 a.m. to 6 p.m., and the results are shown in Table 1 as numerical values as "fog occurrence evaluation." The numerical values of "fog generation evaluation" have the following meanings. "1": No fog is observed inside the house, or a slight amount of fog is generated only near the inner surface of the film. “2”…There is fog throughout the house, but 15
The back of the house m ahead can be clearly identified. “3”…A slightly thick fog appears throughout the house, 15
A state where it is not possible to clearly identify the back of the house m ahead. "4"...Dense fog has formed throughout the house, making it impossible to discern the back of the house from 15 meters away. "Average value" means the average value of the values for five days during which the fog formation situation was observed, and "highest value" means the highest value observed during the five days. (2) Evaluation of weather resistance At a farm in Nagoya City, Aichi Prefecture, the 16 types of films mentioned above were spread on a closed roof-type house facing south and tilted at 45 degrees to the plane (1975). (August 10, 2016), three months after deployment, 6
After 9 months, 9 months, and 12 months, the appearance of each film was visually observed and evaluated. The results are shown in Table 1. The numerical values of "weather resistance evaluation" have the following meanings. “1”…No change observed in appearance. "2"...Slight brown spots are observed. "3"... Brown spots are observed here and there. "4"...Many brown spots are observed. "5"... Brown spots are observed on the entire surface.

[Table] From Table 1, the following is clear. (1) When the agricultural vinyl chloride resin coating material according to the present invention is used as a greenhouse coating, the generation of fog near the inner surface of the coating material is effectively suppressed. (2) Since the agricultural vinyl chloride resin coating material according to the present invention contains tricylenyl phosphate and an epoxy compound in combination with the base resin,
It shows extremely excellent weather resistance. (3) The agricultural vinyl chloride resin coating material according to the present invention maintains its fog generation suppressing effect over a long period of time due to the synergistic action of the three components blended into the base resin. (4) On the other hand, in films in which none of the three components is blended (Comparative Example 1), and in films in which one or two of the three components are blended (Comparative Examples 2 to 6), the components to be blended are Depending on the combination, some may be effective in suppressing fog generation, while others may exhibit excellent weather resistance.
Excellent weather resistance, excellent fog generation suppression effect, and
There is no product that maintains its fog generation suppression effect over a long period of time.

Claims (1)

[Claims] 1. Per 100 parts by weight of vinyl chloride resin, 1 to 10 parts by weight of tricylenyl phosphate, 0.5 to 7 parts by weight of epoxy compound, and 0.01 to 0.01 parts by weight of fluorine-containing compound.
2 parts by weight of agricultural vinyl chloride resin coating, which is made into a film or sheet, and has excellent weather resistance, and has an excellent fog generation suppressing effect near the inner surface of the coating material and a long-lasting effect. Material.