Plasticizer composition and vinyl chloride resin composition comprising same

Abstract

The present invention relates to a plasticizer composition and a vinyl chloride resin composition comprising same. Specifically, the present invention relates to: a plasticizer composition having excellent thermal stability and weather resistance; and a vinyl chloride resin composition comprising same.

Description

Plasticizer composition and vinyl chloride resin composition containing the same

[0001] Cross-citation with related application(s)

[0002] This application claims the benefit of priority based on Korean Patent Application No. 10-2024-0191751 filed December 19, 2024, and all contents disclosed in the literature of said Korean patent applications are incorporated herein as part of this specification.

[0003]

[0004] The present invention relates to a plasticizer composition and a vinyl chloride resin composition containing the same. Specifically, the present invention relates to a plasticizer composition having excellent thermal stability and weather resistance, and a vinyl chloride resin composition containing the same.

[0005]

[0006] Vinyl chloride resin (PVC resin) is widely applied in various fields due to its high utility, resulting from its excellent cost competitiveness, and its ability to be molded in diverse ways due to its rigid and flexible properties. Additives are commonly used as auxiliary materials to facilitate the processing of vinyl chloride resin and improve the performance of the final product. These additives include plasticizers, stabilizers, fillers, and blowing agents, which are mixed during the resin manufacturing process to produce the final resin. Among these, plasticizers enable the production of a wide variety of products by increasing the flexibility of the resin.

[0007] Plasticizers are classified into phthalate, epoxy, and polyester types according to their molecular structural formulas. Among them, phthalate plasticizers are the most commonly used representative plasticizers due to their excellent compatibility with vinyl chloride resin and high plasticization efficiency. Phthalate plasticizers are substances in which various alkyl groups are substituted into a phthalate structure. Examples of phthalate plasticizers include DEHP (di-2-ethylhexyl phthalate), DINP (di-isononyl phthalate), DIDP (di-isodecyl phthalate), and DBP (di-butyl phthalate).

[0008] Despite the aforementioned advantages, research has shown that phthalate plasticizers are endocrine disruptors harmful to the human body; they have been classified as hazardous substances, leading to a demand for alternative components. Research on eco-friendly plasticizers was initiated to replace phthalate plasticizers. Representative examples include terephthalate plasticizers, epoxide plasticizers, vegetable oil plasticizers, cyclohexane plasticizers, and mixtures thereof. Among eco-friendly plasticizers, a general-purpose product is DOTP (di-octyl terephthalate), which is based on terephthalic acid. However, as toxicity remains an issue and it cannot replace phthalate plasticizers in terms of quality, research on cyclohexane plasticizers has recently been underway.

[0009] A representative cyclohexane-based plasticizer is DEHCH (di(2-ethylhexyl)cyclohexane dicarboxylate). DEHCH exhibits excellent hardness properties and poses fewer environmental issues compared to phthalate-based plasticizers. However, DEHCH presents challenges regarding low-temperature stability, volatility, and thermal stability. To address these properties, research is being conducted on plasticizer compositions incorporating various additional substances. Nevertheless, further research is required on plasticizer compositions designed to improve thermal stability and weather resistance.

[0010]

[0011] One embodiment of the present disclosure aims to provide a plasticizer composition and a vinyl chloride resin composition comprising the same.

[0012] Specifically, the first embodiment of the present disclosure aims to provide a plasticizer composition having excellent physical properties such as thermal stability and weather resistance, and a vinyl chloride resin composition containing the same.

[0013]

[0014] One embodiment of the present disclosure provides a plasticizer composition comprising a cyclohexane dicarboxylate-based compound and a non-petroleum-based compound.

[0015] In addition, another embodiment of the present disclosure provides a vinyl chloride resin composition comprising the plasticizer composition.

[0016] In addition, another embodiment of the present disclosure provides a vinyl chloride resin molded article comprising the vinyl chloride resin composition.

[0017]

[0018] The terms used in this specification are used merely to describe exemplary embodiments and are not intended to limit the invention.

[0019] A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0020] In this specification, terms such as “comprising,” “comprising,” or “having” are used to describe the features, numbers, steps, components, or combinations thereof that are implemented, and do not exclude one or more other features, numbers, steps, components, combinations thereof, or the possibility of addition.

[0021] The present invention is capable of various modifications and may take various forms, and specific embodiments are illustrated and described in detail below. However, this is not intended to limit the invention to the specific disclosed forms, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0022] The present invention will be described in detail below.

[0023]

[0024] The plasticizer composition according to the present invention includes a cyclohexane dicarboxylate-based compound and a non-petroleum-based compound.

[0025] The above cyclohexane dicarboxylate-based compound can be represented by the following chemical formula 1.

[0026] [Chemical Formula 1]

[0027]

[0028] In the above chemical formula 1,

[0029] R1 and R2 can each be independently selected from straight-chain or branched-chain alkyl groups having 4 to 12 carbon atoms.

[0030] The compound represented by [Chemical Formula 1] above may be represented by [Chemical Formula 1-1] to [Chemical Formula 1-3] below, depending on the position of the carboxylate group substitution on cyclohexane.

[0031] [Chemical Formula 1-1]

[0032]

[0033] [Chemical Formula 1-2]

[0034]

[0035] [Chemical Formula 1-3]

[0036]

[0037] The above [Chemical Formula 1-1] is a cyclohexane-1,4-dicarboxylate-based compound, the above [Chemical Formula 1-2] is a cyclohexane-1,3-dicarboxylate-based compound, and the above [Chemical Formula 1-3] is a cyclohexane-1,2-dicarboxylate-based compound.

[0038] In addition, in the above chemical formulas 1-1 to 1-3, R3 to R8 are each a butyl group, an isobutyl group, a pentyl group, a hexyl group, a heptyl group, a 2-ethylhexyl group, an octyl group, a nonyl group, an isononyl group, a 2-propylheptyl group, a decyl group, or an isodecyl group.

[0039] For example, in a cyclohexane-1,4-dicarboxylate-based compound, if R3 and R4 are the same, it may be di(butyl)cyclohexane-1,4-dicarboxylate, di(isononyl)cyclohexane-1,4-dicarboxylate, etc.; if R3 and R4 are different, it may be butyl(2-ethylhexyl)cyclohexane-1,4-dicarboxylate, butyl(isononyl)cyclohexane-1,4-dicarboxylate, etc.

[0040] According to one embodiment of the present invention, among the components of the plasticizer composition, the cyclohexane dicarboxylate-based compound may be a compound in which R3 and R4 are both 2-ethylhexyl groups in the cyclohexane-1,4-dicarboxylate-based compound. This compound has the structure of [Chemical Formula 1-4] below and is di(2-ethylhexyl)cyclohexane-1,4-dicarboxylate (di(2-ethylhexyl)cyclohexane-1,4-dicarboxylate, DEHCH).

[0041] [Chemical Formula 1-4]

[0042]

[0043] According to one embodiment of the present invention, in the plasticizer composition, the cyclohexane dicarboxylate-based compound is selected from the group consisting of di(2-ethylhexyl)cyclohexane-1,4-dicarboxylate, di(isononyl)cyclohexane-1,4-dicarboxylate, di(2-propylheptyl)cyclohexane-1,4-dicarboxylate, di(decyl)cyclohexane-1,4-dicarboxylate, and di(isodecyl)cyclohexane-1,4-dicarboxylate. It may include one or more types.

[0044]

[0045] One of the components of the plasticizer composition according to the present invention, a non-petroleum compound, may be a compound having 14 to 22 carbon atoms and 3 to 8 chlorine atoms.

[0046] Specifically, the non-petroleum compound may be a chlorinated bio-oil. The chlorinated bio-oil may include chlorinated vegetable oil, chlorinated animal oil, or chlorinated discarded bio-oil. Specifically, the non-petroleum compound may be a chlorinated alkyl ester compound. For example, it may be a compound such as Bio-based chlorinated paraffin; Methyl 3-octyloxiraneoctanoate (CAS # 2566-91-8); or chlorinated Fatty acids, tallow, Me esters (CAS # 68440-29-9).

[0047] The above-mentioned chlorinated vegetable oil may include chlorinated vegetable oils such as soybean oil, castor oil, linseed oil, palm oil, tall oil, tung oil, grapeseed oil, olive oil, jojoba oil, poppyseed oil, cottonseed oil, canola oil, wheat germ oil, peanut oil, and walnut oil. The above-mentioned animal oil may include chlorinated tallow, lard, lamb fat, poultry oil, butter, whale oil, etc. Additionally, discarded bio-oil refers to oil that is discarded after being used in food preparation, whether vegetable, animal, or both; for example, it may include waste cooking oil, which may be recycled and chlorinated for use.

[0048] Chlorinated bio-oil can be obtained by chlorinating ester compounds known in the art.

[0049]

[0050] The plasticizer composition according to the first embodiment of the present disclosure includes the non-petroleum compound together with the cyclohexane dicarboxylate-based compound, thereby improving permeability, haze, elongation, and migration resistance characteristics compared to conventional phthalate-based plasticizers, while maintaining excellent hardness, tensile strength, and thermal stability characteristics.

[0051]

[0052] A plasticizer composition according to one embodiment of the present invention may include 10 to 90 parts by weight of the non-petroleum compound with respect to 100 parts by weight of the plasticizer composition. Specifically, with respect to 100 parts by weight of the plasticizer composition, the non-petroleum compound may be included in an amount of 10 parts by weight or more, 20 parts by weight or more, 30 parts by weight or more, or 40 parts by weight or more to 90 parts by weight or less, 80 parts by weight or less, 70 parts by weight or less, 60 parts by weight or less, or 50 parts by weight or less.

[0053] If too much non-petroleum compound is included, there may be issues such as increased initial coloration and slightly lower thermal stability. On the other hand, if too little non-petroleum compound is included, there may be issues such as lower tensile strength and inferior haze characteristics.

[0054] Specifically, the plasticizer composition of the first embodiment of the present disclosure may be a two-component composition comprising only a cyclohexane dicarboxylate-based compound and a non-petroleum-based compound.

[0055] That is, when the non-petroleum compound is included in an amount of 10 to 90 parts by weight per 100 parts by weight of the plasticizer composition, the remainder is cyclohexane dicarboxylic acid.

[0056]

[0057] According to one embodiment of the present invention, the plasticizer composition can be prepared by mixing and blending the cyclohexane dicarboxylate-based material and the non-petroleum-based compound.

[0058]

[0059] In addition, the present invention provides a vinyl chloride resin composition comprising the plasticizer composition. A vinyl chloride composition comprising the plasticizer composition according to one embodiment of the present invention may have improved thermal stability and weather resistance.

[0060] Throughout the entire disclosure, the term "vinyl chloride resin composition" refers to a vinyl chloride monomer alone, or a (co)polymer formed by copolymerizing a vinyl chloride monomer and a comonomer copolymerizable therefrom. In addition, it may be prepared by polymerization methods such as suspension polymerization, micro-suspension polymerization, emulsion polymerization, or mini-emulsion polymerization by mixing a suspending agent, a buffering agent, and a polymerization initiator.

[0061] In addition, the vinyl chloride resin composition according to one embodiment of the present invention may contain, with respect to 100 parts by weight of the vinyl chloride resin composition, the plasticizer composition in an amount of 10 parts by weight or more to 200 parts by weight or less, preferably 10 parts by weight or more, 20 parts by weight or more, 30 parts by weight or more, 40 parts by weight or more, or 50 parts by weight or more to 200 parts by weight or less, 180 parts by weight or less, 150 parts by weight or less, 120 parts by weight or less, 100 parts by weight or less, 80 parts by weight or less, or 60 parts by weight or less. If the plasticizer composition is included in a relatively small amount, it may be difficult to achieve desired physical properties, and if the plasticizer composition is included in a relatively large amount, there may be problems such as low viscosity, making processing difficult, and tackiness appearing on the surface of the product.

[0062] A vinyl chloride resin composition comprising a plasticizer composition of one embodiment of the present invention has a transmittance of 93 or higher, a haze of 1.5% or lower, an initial colorability (initial Yellow Index) of 8 or lower, a hardness (Shore A) of 83 or lower, and a tensile strength of 170 kgf / cm² 2 The above may include an elongation of 360% or more, thermal stability of 90 minutes or more, migration resistance of 0.7 or less, and weather resistance (Yellow Index after 20 days of storage) of 15 or less.

[0063] The measurement method for each of the above physical properties is as described in the experimental examples below.

[0064] Specifically, a vinyl chloride resin composition comprising a plasticizer composition of one embodiment of the present invention may have a thermal stability of 90 minutes or more and 120 minutes or less. Specifically, the vinyl chloride resin composition may have a thermal stability of 90 minutes or more, 95 minutes or more, 100 minutes or more, or 103 minutes or more to 120 minutes or less, 110 minutes or less, or 105 minutes or less. In this case, thermal stability is a value measured by the time it takes for a vinyl chloride resin specimen to carbonize at 180°C using a Mathis Oven.

[0065] The vinyl chloride resin composition of the present disclosure can satisfy the above range by including a plasticizer composition comprising a cyclohexane dicarboxylate-based compound and a non-petroleum-based compound, thereby improving thermal stability.

[0066] The polyvinyl chloride resin composition of the present disclosure may have a weather resistance of 15 or less. Weather resistance of the present disclosure refers to the Yellow Index value measured after storing a resin sample in UV CON for about 20 days according to the ASTM G 154 Cycle B method, measured by the method disclosed in the experimental examples below. As the YI value increases, the resin is discolored, and the weather resistance can be evaluated as inferior. Specifically, the polyvinyl chloride resin composition may have a weather resistance of 10 or more to 15 or less, or 10 or more, or 11 or more to 15 or less, 14 or less, or 13 or less.

[0067] The vinyl chloride resin composition of the present disclosure can satisfy the above range by including a plasticizer composition comprising a cyclohexane dicarboxylate-based compound and a non-petroleum-based compound, thereby improving weather resistance.

[0068]

[0069] Additionally, the vinyl chloride resin composition may further include other additives such as stabilizers, fillers, and foaming agents.

[0070] The above stabilizer is added for the purpose of preventing changes in the physical properties of the resin composition and comprises one or more selected from the group consisting of Ca-Zn compounds, K-Zn compounds, Ba-Zn compounds, organic tin compounds; metallic soap compounds, phenol compounds, phosphate ester compounds, and phosphite ester compounds.

[0071] In addition, the above filler is used for the purpose of improving the productivity and dryness texture of the resin composition, and includes one or more selected from the group consisting of calcium carbonate, silica, alumina kaolin, and magnesium hydroxide.

[0072] In addition, the above-mentioned blowing agent is used to lighten the resin composition and may be a chemical or physical blowing agent. Examples of chemical blowing agents include azodicarbonamide, azodiisobutyronitrile, benzenesulfonylhydrazide, p-toluenesulfonyl semi-carbazide, sodium bicarbonate, ammonium bicarbonate, etc. Examples of physical blowing agents include carbon dioxide, nitrogen, cyclohexane, toluene, 1,2-dichloroethane, acetone, methyl ethyl ketone, etc.

[0073] The above other additives may be used in addition to the examples provided, provided that they do not impede the purpose of the present invention, and may be selected in appropriate proportions depending on the purpose of the vinyl chloride resin composition.

[0074] Meanwhile, the present invention may provide a vinyl chloride resin molded article comprising a vinyl chloride resin composition. Specifically, the vinyl chloride resin molded article may include a plasticizer composition.

[0075] The above vinyl chloride resin molded article may be a sheet. Specifically, the above vinyl chloride resin molded article may be used in sheet products such as soft sheets, deco tiles, and deco sheets.

[0076]

[0077] The plasticizer composition disclosed herein has improved overall physical properties, such as thermal stability and weather resistance, compared to existing eco-friendly plasticizer compositions, making it highly valuable as an eco-friendly plasticizer.

[0078] In addition, the vinyl chloride resin composition containing the plasticizer composition according to the present disclosure is environmentally friendly and has improved physical properties, making it highly versatile.

[0079]

[0080] Preferred embodiments are presented below to aid in understanding the invention. However, the following embodiments are intended only to illustrate the invention and do not limit the invention to these embodiments.

[0081]

[0082] <Example>

[0083] Example 1

[0084] DEHCH was used as a cyclohexane dicarboxylate compound, and CAS 68440-29-9 was used as a non-petroleum compound. A plasticizer composition was prepared by mixing 90 parts by weight of DEHCH and 10 parts by weight of CAS 68440-29-9.

[0085]

[0086] Examples 2 to 5

[0087] A plasticizer composition was prepared in the same manner as in Example 1, except that the plasticizer composition in Example 1 was adjusted as shown in Table 1.

[0088]

[0089] Cyclohexane dicarboxylate-based compound (DEHCH) Non-petroleum-based compound (CAS 68440-29-9) Example 190 parts by weight 10 parts by weight Example 270 parts by weight 30 parts by weight Example 350 parts by weight 50 parts by weight Example 440 parts by weight 60 parts by weight Example 530 parts by weight 70 parts by weight

[0090] <Comparative Example> Comparative Example 1

[0091] DEHCH was used as the cyclohexane dicarboxylate compound, CAS 95009-45-3 as the vegetable oil (VO), and CAS 8013-07-8 as the epoxidized vegetable oil (EV). A plasticizer composition was prepared by mixing 70 parts by weight of DEHCH, 15 parts by weight of vegetable oil, and 15 parts by weight of epoxidized vegetable oil.

[0092]

[0093] Comparative Example 2

[0094] 100 parts by weight of DEHCH, a cyclohexane dicarboxylate-based compound, was used alone as a plasticizer composition.

[0095]

[0096] Comparative Example 3

[0097] 100 parts by weight of dioctyl terephthalate (DOTP) was used alone as a plasticizer composition.

[0098]

[0099] Comparative Example 4

[0100] 100 parts by weight of diisononyl phthalate (DINP) was used alone as a plasticizer composition.

[0101]

[0102] Comparative Example 5

[0103] 100 parts by weight of the compound CAS 68440-29-9, a non-petroleum compound, was used alone as a plasticizer composition.

[0104] Comparative Plasticizer Composition Example 1: 70 parts by weight of DEHCH, 15 parts by weight of vegetable oil, 15 parts by weight of epoxidized vegetable oil Comparative Example 2: 100 parts by weight of DEHCH Comparative Example 3: 100 parts by weight of DOTP Comparative Example 4: 100 parts by weight of DINP Comparative Example 5: 100 parts by weight of CAS 68440-29-9

[0105] <Experimental Example>

[0106] Vinyl chloride resin composition

[0107] A vinyl chloride resin composition comprising the plasticizer compositions of Examples 1 to 5 and Comparative Examples 1 to 5 was prepared.

[0108] 100 parts by weight of polyvinyl chloride (P-1000F, Hanwha Solution), 50 parts by weight of a plasticizer composition, 2 parts by weight of a stabilizer (BZL-150, Songwon Industrial), and 3 parts by weight of epoxy oil (E-700, Songwon Industrial) were mixed. Then, the mixture was mixed in a Hobart mixer for 10 minutes to prepare a vinyl chloride resin composition.

[0109] The vinyl chloride resin composition prepared above was rolled and kneaded at 170°C for 7 minutes in a high-temperature mixing roll, and then rolled at 180°C for 10 minutes in a hot press to produce specimens for physical property evaluation with thicknesses of 2 mm and 5 mm.

[0110]

[0111] Transmittance and Haze Measurement Method

[0112] The transmittance and haze of specimens prepared according to ASTM D1003 standards were measured using a BYK-Gardner instrument.

[0113]

[0114] Evaluation method for initial coloration (Yellow Index)

[0115] The product color was evaluated by measuring the Yellow Index (YI) according to ASTM E313 standards 48 hours after manufacturing. A lower Yellow Index value was evaluated as indicating superior physical properties.

[0116]

[0117] Hardness measurement method

[0118] Specimens for evaluating physical properties were prepared with dimensions of 5 cm x 5 cm x 4 cm, and their hardness was measured using a Shore A durometer. The durometer needle was fully lowered into one spot on the specimen, and the hardness value was read after 5 seconds. For each specimen, three spots were tested, and the average value was taken. A lower hardness value was evaluated as indicating superior flexibility of the product.

[0119]

[0120] Method for measuring plasticization efficiency

[0121] It was calculated using hardness values. DEHP (DOP) was set to a standard of 1.00, and the smaller the plasticization efficiency number, the better the physical properties were evaluated.

[0122]

[0123] Method for measuring elongation and tensile strength

[0124] Elongation and tensile strength were measured by preparing a molding sheet into a dumbbell-shaped specimen according to ASTM D638 and then measuring it on a Universal Test Machine (UTM) at a speed of 500 mm / min.

[0125]

[0126] Thermal stability measurement method

[0127] The specimen for evaluating physical properties was placed in a Mathis Oven, and the time taken for carbonization at 180°C was measured.

[0128]

[0129] Method for evaluating plasticizer migration

[0130] The plasticizer migration resistance was determined by referring to the ISO 177:1988 (Plastics - Determination of migration of Plasticizer) method. Molding sheet specimens were prepared by cutting them into circular shapes with a diameter of 50 mm. Parchment paper (PP porous film) and a glass plate were placed sequentially on top and bottom of the specimens to allow the plasticizer migrated from the specimens to be absorbed into the parchment paper. After applying a 5 kg load to the specimens and leaving them at 70°C for 5 days, the percentage change in weight of the specimens was measured to analyze the degree of plasticizer migration.

[0131] The weight change rate of the specimen was calculated as [(weight change of specimen / weight of specimen before test) * 100], and the weight change rate of the tracing paper was calculated as [(weight change of tracing paper / weight of tracing paper before test) * 100]. Since the weight loss of the specimen was equal to the weight increase of the tracing paper, the plasticizer migration was evaluated based solely on the weight change rate of the specimen in this experiment.

[0132]

[0133] Weather resistance measurement method

[0134] The test was conducted using UV CON testing equipment, and after storing in UV CON for about 20 days using the ASTM G 154 Cycle B method (UV 60℃ for 4 hours, Condensation 50℃ for 4 hours cycle), the change in YI before and after storage was calculated and presented as weather resistance in Table 3.

[0135]

[0136] The data evaluated above is shown in Table 3 below.

[0137]

[0138] Example 1 Example 2 Example 3 Example 4 Example 5 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Transmittance 9 39 39 39 39 39 39 0 9 39 2 Haze (%) 1.5 1.5 1.4 1.4 1.2 1.5 1.5 2.8 2.2 1.6 Initial Color (YI) 6 6 7 8 8 6 6 8 9 Hardness (Shore A) 7 8 8 0 8 2 8 2 8 3 8 1 8 0 8 3 8 0 8 4 Plasticization Efficiency 1.0 1 1.0 4 1.0 6 1.0 6 1.0 8 1.0 5 1.0 4 1.0 8 1.0 4 1.0 9 Tensile Strength (kgf / cm² 2 )172173178180188164169178183193 Elongation (%) 368389366368372396341350351362 Thermal Stability (min) 1031031011009014710311012083 Migration Resistance (%) 0.30.50.60.50.50.50.31.20.10.5 Weather Resistance 12131414151412241515

[0139] According to the data in Table 3 above, Comparative Examples 2 and 3, which do not contain non-petroleum compounds as plasticizers, have a tensile strength of 170 kgf / cm² 2 It was found to be less than or the elongation was less than 360%, which was inferior to the example. Furthermore, Comparative Example 3 showed an inferior effect with plasticizer migration exceeding 0.7%.

[0140] In addition, Comparative Example 4 contains a phthalate-based plasticizer, which is contrary to the purpose of the present disclosure to provide an eco-friendly plasticizer, and the haze exceeded 1.5% and the elongation was less than 360%, so the physical properties were inferior to those of the example.

[0141] Comparative Example 1 contained vegetable oil and epoxidized vegetable oil as non-petroleum-based plasticizers, but was not chlorinated bio-based oil, and had a tensile strength of 170 kgf / cm² 2 It appeared to be less than

[0142] Comparative Example 5 used only a non-petroleum-based CAS 68440-29-9 compound, and showed inferior thermal stability of less than 90 minutes.

[0143] In addition, Comparative Example 3, which used the conventional general-purpose plasticizer DOTP, was found to have a significantly increased YI value as a result of the weather resistance test.

Claims

1. i) A cyclohexane dicarboxylate-based compound represented by the following chemical formula 1; and ii) Non-petroleum compounds; As a plasticizer composition comprising, The non-petroleum compound is included in an amount of 10 to 90 parts by weight per 100 parts by weight of the plasticizer composition, and The above non-petroleum compound has 14 to 22 carbon atoms and 3 to 8 chlorine atoms, Plasticizer composition: [Chemical Formula 1] In the above chemical formula 1, R1 and R2 are each independently straight-chain or branched-chain alkyl groups having 4 to 12 carbon atoms.

2. In Paragraph 1, The above-mentioned non-petroleum compound is a chlorinated bio-oil, Plasticizer composition.

3. In Paragraph 1, The above-mentioned cyclohexane dicarboxylate-based compound is any one of the following chemical formulas 1-1 to 1-3, a plasticizer composition: [Chemical Formula 1-1] [Chemical Formula 1-2] [Chemical Formula 1-3] In the above chemical formulas 1-1 to 1-3, R3 to R8 are each independently a butyl group, isobutyl group, pentyl group, hexyl group, heptyl group, octyl group, 2-ethylhexyl group, nonyl group, isononyl group, 2-propylheptyl group, decyl group, or isodecyl group.

4. In Paragraph 1, A plasticizer composition comprising one or more compounds selected from the group consisting of di(2-ethylhexyl) cyclohexane-1,4-dicarboxylate, di(isononyl)cyclohexane-1,4-dicarboxylate, di(2-propylheptyl)cyclohexane-1,4-dicarboxylate, di(decyl) cyclohexane-1,4-dicarboxylate, and di(isodecyl) cyclohexane-1,4-dicarboxylate.

5. A vinyl chloride resin composition comprising a plasticizer composition according to any one of claims 1 to 4.

6. In Paragraph 5, A vinyl chloride resin composition comprising 10 to 200 parts by weight of the plasticizer composition per 100 parts by weight of the vinyl chloride resin composition.

7. In Paragraph 5, The above vinyl chloride resin composition further comprises one or more selected from the group consisting of stabilizers, fillers, and foaming agents.

8. A vinyl chloride resin molded article comprising the vinyl chloride resin composition of claim 5.

9. In Paragraph 8, The above vinyl chloride resin molded article is a vinyl chloride resin molded article that is a soft sheet, a deco tile, or a deco sheet.

Images