A composite chlorinated resin composition, an anticorrosive paint, and a method for producing the same

Abstract

The present application belongs to the technical field of high polymer coating, and particularly relates to a composite chlorinated resin composition, an anticorrosive coating and a preparation method thereof.The coating is prepared from chlorinated polyolefins with different molecular weights and viscosities under a curing system, and has good adhesion and flexibility without adding plasticizers and adhesion promoters.The composition and the anticorrosive coating have excellent mechanical properties, anticorrosive properties, environmental adaptability and long-term stability, solve the cost reduction problem of traditional chlorinated rubber coatings and the recycling problem of waste polyolefin plastics, and are green and environmentally friendly.

Description

Technical Field

[0001] This invention belongs to the field of polymer coating technology, specifically relating to a composite chlorinated resin composition, an anti-corrosion coating, and a method for preparing the same. Background Technology

[0002] Anti-corrosion coatings are widely used for corrosion protection in ships, bridges, storage tanks, and other fields. Among them, chlorinated rubber coatings are one of the most widely used anti-corrosion coatings due to their good chemical resistance and physical and mechanical properties. However, chlorinated rubber coatings have high requirements for the temperature of the construction environment, poor air permeability, and are prone to forming bubbles between the substrate and the coating, especially in humid environments, which can easily lead to blistering or peeling of the coating. At the same time, compared with epoxy resin coatings, chlorinated rubber coatings have poor flexibility and weak adhesion, and are prone to cracking or even peeling under large external forces, especially when there is a large deformation on the metal surface, making it difficult to maintain the stability of the coating. In addition, chlorinated rubber coatings have limited weather resistance and weak resistance to ultraviolet rays. Long-term exposure to sunlight will cause the coating to age, fade, or even chalk. Based on the above problems, there is an urgent need to develop a high-performance anti-corrosion coating that has good mechanical properties and is safe and environmentally friendly. Summary of the Invention

[0003] To address the aforementioned technical problems, the present invention aims to provide a composite chlorinated resin composition, an anti-corrosion coating, and a method for preparing the same. The composition and coating prepared using the composite chlorinated resin of the present invention possess excellent mechanical properties, anti-corrosion properties, environmental tolerance, and long-term stability. At the same time, it solves the cost reduction problem of traditional chlorinated rubber coatings and the recycling problem of waste polyolefin plastics, making it both economical and environmentally friendly.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows:

[0005] A composite chlorinated resin composition comprising the following components and their weight proportions:

[0006] It includes the following components and their weight parts: 25-36 parts of chlorinated polypropylene, 5-15 parts of chlorinated polyethylene, 5-15 parts of epoxy resin, 1-10 parts of curing agent, 5-15 parts of pigments and fillers, 20-50 parts of solvent and 1-10 parts of additives.

[0007] Further, the composite chlorinated resin composition comprises the following components and their weight parts: 25-36 parts of chlorinated polypropylene, 5-15 parts of chlorinated polyethylene, 5-15 parts of epoxy resin, 1-10 parts of curing agent, 5-15 parts of pigments and fillers, 20-50 parts of solvent, 1-3 parts of dispersant, 0.5-3 parts of anti-settling agent, 0-3 parts of defoamer, 1-5 parts of leveling agent, and 0.1-2 parts of pH adjuster.

[0008] Furthermore, the composite chlorinated resin composition satisfies at least one of the following:

[0009] (1) The chlorinated polypropylene has a chlorine content of 24-32%, a weight-average molecular weight of 30,000-500,000, and a viscosity of 10-500 mPa·s (25°C).

[0010] (2) The chlorine content of the chlorinated polyethylene is 30-35%;

[0011] (3) The epoxy equivalent of the epoxy resin is 110-1200 g / eq.

[0012] Furthermore, the chlorinated polypropylene comprises a mixture of two or more of the following chlorinated polypropylene:

[0013] Chlorinated polypropylene I: chlorine content is 20-24%, weight average molecular weight is 50,000-100,000, and viscosity is 10-50 mPa·s (25℃);

[0014] Chlorinated polypropylene II: chlorine content 24-26%, weight average molecular weight 100,000-150,000, viscosity 150-250 mPa·s (25℃)

[0015] Chlorinated polypropylene III: chlorine content is 28-32%, weight average molecular weight is 300,000-400,000, and viscosity is 250-350 mPa·s (25℃).

[0016] Furthermore, the mass ratio of chlorinated polypropylene I, chlorinated polypropylene II, and chlorinated polypropylene III in the chlorinated polypropylene mixture is 5-15:0-6:0.1-1.

[0017] Preferably, the mass ratio of chlorinated polypropylene I, chlorinated polypropylene II, and chlorinated polypropylene III in the chlorinated polypropylene mixture is 8-12:5-6:0.2-0.8.

[0018] Preferably, the epoxy resin includes, but is not limited to, one or more of Phoenix E51, E44, Nanya NPEL-128, Jiangsu San 128, CYD-014, and CYD-011.

[0019] Furthermore, the curing agent is selected from one or more of aliphatic amines, aromatic amines, polythiols, polyamides, tertiary amines, and acid anhydrides, including but not limited to polyetheramine D230, polyetheramine T403, polyamide 5115, and WANAMINE. @ IPDA, Huntsman Models include 3986, Huntsman Aradur 38-1, Qirun EH 3504, Qirun 3503, etc.

[0020] Furthermore, the pigments and fillers are selected from one or more of titanium dioxide, calcium carbonate, barium sulfate, clay, kaolin, talc, carbon black, bentonite, quartz powder, iron oxide red, zinc phosphate, aluminum tripolyphosphate, mica powder, talc, calcined kaolin, and nano-ceramics.

[0021] Furthermore, the solvent is selected from one or more of hydrocarbons, esters, ketones, alcohols, and alcohol ethers;

[0022] Optionally, the hydrocarbons are selected from one or more of benzene, toluene, xylene, No. 200 coal tar solvent, No. 200 solvent gasoline, and kerosene;

[0023] Optionally, the esters are selected from one or more of ethyl acetate, butyl acetate, and amyl acetate;

[0024] Optionally, the ketones are selected from one or more of acetone, butanone, cyclopentanone, and methyl isobutyl ketone;

[0025] Optionally, the alcohol is selected from one or more of methanol, ethanol, and butanol;

[0026] Optionally, the alcohol ether is selected from one or more of ethylene glycol-ethyl ether, ethylene glycol-butyl ether, and diethylene glycol-ethyl ether.

[0027] Furthermore, the additives include one or more of the following: dispersants, anti-settling agents, defoamers, leveling agents, and pH adjusters;

[0028] Optionally, the dispersant is selected from one or more of polyacrylic acid, polycarboxylic acid, polyacrylate, carboxylic acid ester, carboxylate, or polycarboxylate, including but not limited to BYK-AT204. Models include -205, HX-4015, and HX-4010;

[0029] Optionally, the anti-settling agent is selected from one or more of organobentonite, fumed silica, polyolefin wax, and polyamide wax, including but not limited to Desettle201P, Deqian MPA 20X, DeuRheo 229, etc.

[0030] Optionally, the defoamer is selected from one or more of polysiloxane defoamers, silicone defoamers, and polyether defoamers, including but not limited to Wacker AK350, TEGO Airex 900, Defom 5500, Defom 6500, UNIQFOAM 272S, UNIQFOAM 130S, etc.

[0031] Optionally, the pH adjuster is selected from one or more of AMP-95, ammonia, dimethylethanolamine, triethanolamine, diethanolamine, monoethanolamine, N-methylethanolamine, dimethylethanolamine, Alpamina N41, butylethanolamine, N-aminopropylmethylethanolamine, butyldiethanolamine, sodium hydroxide, and potassium hydroxide.

[0032] Optionally, the leveling agent is selected from one or more of polyurethane, silicone, acrylic, and fluorocarbon polymers;

[0033] Furthermore, the leveling agent is selected from one or more of polyacrylic acid, polymethylsiloxane, methylsiloxane, polydimethylsiloxane, silane, and siloxane, including but not limited to models such as UNIQFLOW 430S, UNIQFLOW 360S, UNIQFLOW 361S, Defom837, Defom835, Defom432, and Defom435.

[0034] Secondly, the present invention also provides a method for preparing a composite chlorinated resin composition, comprising the following steps:

[0035] S1. Mix and stir chlorinated polypropylene, chlorinated polyethylene, epoxy resin and a portion of solvent, heat to 30-100℃ and maintain for a period of time, then add pigments, fillers and additives, mix and stir into a uniform mixture, and grind to a fineness ≤25μm.

[0036] S2. Mix the curing agent and the remaining solvent and stir until homogeneous;

[0037] S3. Mix steps S1 and S2 to obtain a composite chlorinated resin composition.

[0038] Thirdly, the present invention provides an anti-corrosion coating comprising the composite chlorinated resin composition;

[0039] Furthermore, the anti-corrosion coating can be used in materials including metals, wood, concrete, stone, plastics and / or composites, but is not limited to the aforementioned substrates.

[0040] Compared with the prior art, the composite chlorinated resin composition and anti-corrosion coating provided by the present invention have the following technical advantages:

[0041] (1) This invention uses mixed chlorinated polyolefins to replace traditional chlorinated rubber. It can be fully dissolved in various organic solvents to form a resin liquid. Pigments, fillers and additives are added to form a coating formulation. The formulation is optimized by adjusting the pigment-to-binder ratio and screening suitable additives. The balance and control of cost and performance are achieved by adjusting the ratio of chlorinated polyolefins and pigments and fillers, thereby obtaining a product formulation that meets the performance indicators. The composition and coating of this invention no longer rely on plasticizers and adhesion promoters to make the paint film soft, because some chlorinated polyolefins can have plasticizing effects and some chlorinated polyolefins can be used as adhesion promoters. Therefore, mixed chlorinated polyolefin coatings can simplify the design of the formulation and the product strength is better than that of chlorinated rubber coatings, with significant effects.

[0042] (2) The present invention develops a mixed chlorinated polyolefin coating formula to replace chlorinated rubber, which solves the cost reduction problem of traditional chlorinated rubber coatings and the recycling problem of waste polyolefin plastics, which is economical and environmentally friendly. Detailed Implementation

[0043] The present invention will be further described below through specific embodiments, but this is not a limitation of the present invention. Those skilled in the art can make various modifications or improvements based on the basic idea of ​​the present invention, but as long as they do not depart from the basic idea of ​​the present invention, they are all within the protection scope of the present invention.

[0044] In this embodiment, the chlorinated polypropylene is produced by Ruiyide New Materials Co., Ltd. The product models of chlorinated polypropylene I include MC50-22 or MB100-22, the product models of chlorinated polypropylene II include L200-25, and the product models of chlorinated polypropylene III include MS300.

[0045] The chlorinated polyethylene was purchased from Shanyi Plastics, and the product model was CPE-135A.

[0046] The epoxy resins were purchased from Phoenix brand E51, E44, and Nanya NPEL-128.

[0047] Example 1

[0048] The raw material composition of the composite chlorinated resin composition in this embodiment is shown in Table 1:

[0049] Table 1:

[0050]

[0051] According to the formulation in Table 1 above, the preparation steps of the composite chlorinated resin composition in this embodiment are as follows:

[0052] S1. Chlorinated polypropylene I, chlorinated polypropylene III, chlorinated polyethylene, epoxy resin and 28 parts by weight of solvent are mixed and stirred, heated to 85℃ and kept for 2 hours, then pigments, fillers, dispersants, anti-settling agents, defoamers, leveling agents and pH adjusters are added and mixed and stirred into a uniform mixture, and then ground to a fineness ≤25μm.

[0053] S2. Mix the curing agent and the remaining 10 parts by weight of solvent and stir until homogeneous;

[0054] S3. Mix steps S1 and S2 to obtain a composite chlorinated resin composition.

[0055] Example 2

[0056] The raw material composition of the composite chlorinated resin composition in this embodiment is shown in Table 2:

[0057] Table 2:

[0058]

[0059] According to the formulation in Table 2 above, the preparation steps of the composite chlorinated resin composition in this embodiment are as follows:

[0060] S1. Chlorinated polypropylene I, chlorinated polypropylene II, chlorinated polypropylene III, chlorinated polyethylene, epoxy resin and 25 parts by weight of solvent are mixed and stirred, heated to 85℃ and kept for 2 hours, then pigments, fillers, dispersants, anti-settling agents, leveling agents and pH adjusters are added and mixed and stirred into a uniform mixture, and then ground to a fineness ≤25μm.

[0061] S2. Mix the curing agent and the remaining 10 parts by weight of solvent and stir until homogeneous;

[0062] S3. Mix steps S1 and S2 to obtain a composite chlorinated resin composition.

[0063] Example 3

[0064] The raw material composition of the composite chlorinated resin composition in this embodiment is shown in Table 3:

[0065] Table 3:

[0066]

[0067] According to the formulation in Table 3 above, the preparation steps of the composite chlorinated resin composition in this embodiment are as follows:

[0068] S1. Chlorinated polypropylene I, chlorinated polypropylene II, chlorinated polypropylene III, chlorinated polyethylene, epoxy resin and 30 parts by weight of solvent are mixed and stirred, heated to 85℃ and kept for 2 hours, then pigments, fillers, dispersants, anti-settling agents, defoamers, leveling agents and pH adjusters are added and mixed and stirred into a uniform mixture, and ground to a fineness ≤25μm.

[0069] S2. Mix the curing agent and the remaining 10 parts by weight of solvent and stir until homogeneous;

[0070] S3. Mix steps S1 and S2 to obtain a composite chlorinated resin composition.

[0071] Example 4

[0072] The raw material composition of the composite chlorinated resin composition in this embodiment is shown in Table 4:

[0073] Table 4:

[0074]

[0075] According to the formulation in Table 4 above, the preparation steps of the composite chlorinated resin composition in this embodiment are as follows:

[0076] S1. Chlorinated polypropylene I, chlorinated polypropylene II, chlorinated polyethylene, epoxy resin and 25 parts by weight of solvent are mixed and stirred, heated to 85℃ and kept for 2 hours, then pigments, fillers, dispersants, anti-settling agents, leveling agents and pH adjusters are added and mixed and stirred into a uniform mixture, and then ground to a fineness ≤25μm.

[0077] S2. Mix the curing agent and the remaining 10 parts by weight of solvent and stir until homogeneous;

[0078] S3. Mix steps S1 and S2 to obtain a composite chlorinated resin composition.

[0079] Example 5

[0080] The raw material composition of the composite chlorinated resin composition in this embodiment is shown in Table 5:

[0081] Table 5:

[0082]

[0083] According to the formulation in Table 5 above, the preparation steps of the composite chlorinated resin composition in this embodiment are as follows:

[0084] S1. Chlorinated polypropylene II, chlorinated polypropylene III, chlorinated polyethylene, epoxy resin and 25 parts by weight of solvent are mixed and stirred, heated to 85℃ and kept for 2 hours, then pigments, fillers, dispersants, anti-settling agents, leveling agents and pH adjusters are added and mixed and stirred into a uniform mixture, and then ground to a fineness ≤25μm.

[0085] S2. Mix the curing agent and the remaining 10 parts by weight of solvent and stir until homogeneous;

[0086] S3. Mix steps S1 and S2 to obtain a composite chlorinated resin composition.

[0087] Example 6

[0088] The raw material composition of the composite chlorinated resin composition in this embodiment is shown in Table 6:

[0089] Table 6:

[0090]

[0091] According to the formulation in Table 6 above, the preparation steps of the composite chlorinated resin composition in this embodiment are as follows:

[0092] S1. Chlorinated polypropylene I, chlorinated polypropylene II, chlorinated polypropylene III, chlorinated polyethylene, epoxy resin and 25 parts by weight of solvent are mixed and stirred, heated to 85℃ and kept for 2 hours, then pigments, fillers, dispersants, anti-settling agents, leveling agents and pH adjusters are added and mixed and stirred into a uniform mixture, and then ground to a fineness ≤25μm.

[0093] S2. Mix the curing agent and the remaining 10 parts by weight of solvent and stir until homogeneous;

[0094] S3. Mix steps S1 and S2 to obtain a composite chlorinated resin composition.

[0095] Example 7

[0096] The raw material composition of the composite chlorinated resin composition in this embodiment is shown in Table 7:

[0097] Table 7:

[0098]

[0099]

[0100] According to the formulation in Table 7 above, the preparation steps of the composite chlorinated resin composition in this embodiment are as follows:

[0101] S1. Chlorinated polypropylene I, chlorinated polypropylene II, chlorinated polypropylene III, chlorinated polyethylene, epoxy resin and 25 parts by weight of solvent are mixed and stirred, heated to 85℃ and kept for 2 hours, then pigments, fillers, dispersants, anti-settling agents, leveling agents and pH adjusters are added and mixed and stirred into a uniform mixture, and then ground to a fineness ≤25μm.

[0102] S2. Mix the curing agent and the remaining 10 parts by weight of solvent and stir until homogeneous;

[0103] S3. Mix steps S1 and S2 to obtain a composite chlorinated resin composition.

[0104] Example 8

[0105] The raw material composition of the composite chlorinated resin composition in this embodiment is shown in Table 8:

[0106] Table 8:

[0107]

[0108]

[0109] According to the formulation in Table 8 above, the preparation steps of the composite chlorinated resin composition in this embodiment are as follows:

[0110] S1. Chlorinated polypropylene I, chlorinated polypropylene II, chlorinated polypropylene III, chlorinated polyethylene, epoxy resin and 25 parts by weight of solvent are mixed and stirred, heated to 85℃ and kept for 2 hours, then pigments, fillers, dispersants, anti-settling agents and leveling agents are added and mixed and stirred into a uniform mixture, and ground to a fineness ≤25μm.

[0111] S2. Mix the curing agent and the remaining 10 parts by weight of solvent and stir until homogeneous;

[0112] S3. Mix steps S1 and S2 to obtain a composite chlorinated resin composition.

[0113] Experimental Example 1: Performance Testing of Composite Chlorinated Resin Compositions

[0114] The properties of the composite chlorinated resin compositions prepared in Examples 1-8 were tested. The test methods are shown in Table 4, and the test results are shown in Table 5.

[0115] Table 4: Test methods for the properties of composite chlorinated resin compositions

[0116]

[0117]

[0118] Table 5: Performance Test Results of Composite Chlorinated Resin Composition

[0119]

[0120]

[0121] As shown in Table 5, the composite chlorinated resin compositions prepared in Examples 1-3 exhibit superior performance compared to those in Examples 4-8. This is primarily due to the composition and content of the chlorinated polyolefin and epoxy resin. The composite chlorinated resin compositions of this invention contain chlorinated polyethylene and polypropylene, with chlorinated polypropylene including Type I, Type II, and Type III. Type I and Type III must be included in the blend with chlorinated polyethylene to achieve better performance. The compositions in Examples 4-5 lacked either Type I or Type III chlorinated polypropylene, ultimately leading to a significant decrease in the mechanical properties of the coating film and other properties such as acid and alkali resistance, water resistance, salt spray resistance, and aging resistance. In Example 6, the chlorinated polypropylene content was less than 25 parts, while the chlorinated polyethylene content exceeded 20 parts, resulting in a significant decrease in the performance of the blended composition. This is also mainly due to… The degree of chlorination and molecular weight of polyolefins affect the bonding force between molecular chains, resulting in insufficient hardness of the paint film, susceptibility to environmental influences, blistering, and peeling, ultimately affecting the anti-corrosion and other protective effects of the substrate, leading to varying degrees of rusting. Example 7 shows that the performance of the prepared composition is affected by the compounding ratio of chlorinated polypropylene type I, II, and III. When the compounding ratio of chlorinated polypropylene type I, II, and III exceeds the range of 5-15:0-6:0.1-1 or 8-12:5-6:0.2-0.8, the mechanical properties of the composition decrease to a certain extent, thus affecting the environmental resistance of the paint film. The absence of a pH additive in the composition prepared in Example 8 resulted in a certain decrease in the adhesion of the paint film, thus affecting its environmental resistance.

[0122] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A composite chlorinated resin composition, characterized in that, It includes the following components and their weight parts: 25-36 parts of chlorinated polypropylene, 5-15 parts of chlorinated polyethylene, 5-15 parts of epoxy resin, 1-10 parts of curing agent, 5-15 parts of pigments and fillers, 20-50 parts of solvent and 1-10 parts of additives. The chlorinated polypropylene comprises a mixture of chlorinated polypropylene I and chlorinated polypropylene III: Chlorinated polypropylene I: chlorine content is 20-24%, weight-average molecular weight is 50,000-100,000, and viscosity is 10-50 mPa·s; Chlorinated polypropylene III: chlorine content is 28-32%, weight average molecular weight is 300,000-400,000, and viscosity is 250-350 mPa·s.

2. The composite chlorinated resin composition according to claim 1, characterized in that, The composite chlorinated resin composition shall satisfy at least one of the following (1) to (2): (1) The chlorine content of the chlorinated polyethylene is 30-35%; (2) The epoxy equivalent of the epoxy resin is 110-1200 g / eq.

3. The composite chlorinated resin composition according to claim 2, characterized in that, The chlorinated polypropylene mixture also contains chlorinated polypropylene II: The chlorinated polypropylene II has a chlorine content of 24-26%, a weight-average molecular weight of 100,000-150,000, and a viscosity of 150-250 mPa·s.

4. The composite chlorinated resin composition according to claim 3, characterized in that, The mass ratio of chlorinated polypropylene I, chlorinated polypropylene II, and chlorinated polypropylene III in the chlorinated polypropylene mixture is 5-15:0-6:0.1-1.

5. The composite chlorinated resin composition according to claim 4, characterized in that, The mass ratio of chlorinated polypropylene I, chlorinated polypropylene II, and chlorinated polypropylene III in the chlorinated polypropylene mixture is 8-12:5-6:0.2-0.

8.

6. The composite chlorinated resin composition according to claim 1, characterized in that, The curing agent is selected from one or more of aliphatic amines, aromatic amines, polythiols, polyamides, and acid anhydrides; The pigments and fillers are selected from one or more of titanium dioxide, calcium carbonate, barium sulfate, clay, kaolin, talc, carbon black, bentonite, quartz powder, iron oxide red, zinc phosphate, aluminum tripolyphosphate, mica powder, and nano-ceramics.

7. The composite chlorinated resin composition according to claim 1, characterized in that, The solvent is selected from one or more of hydrocarbons, esters, ketones, alcohols, and alcohol ethers; The hydrocarbons are selected from one or more of benzene, toluene, xylene, No. 200 coal tar solvent, No. 200 solvent gasoline, and kerosene; The esters are selected from one or more of ethyl acetate, butyl acetate, and amyl acetate; The ketones are selected from one or more of acetone, butanone, cyclopentanone, and methyl isobutyl ketone; The alcohols are selected from one or more of methanol, ethanol, and butanol; The alcohol ether is selected from one or more of ethylene glycol-ethyl ether, ethylene glycol-butyl ether, and diethylene glycol-ethyl ether.

8. The composite chlorinated resin composition according to claim 1, characterized in that, The additives include one or more of the following: dispersants, anti-settling agents, defoamers, leveling agents, and pH adjusters; The dispersant is selected from one or more of polyacrylic acid, polycarboxylic acid, polyacrylate, carboxylic acid ester, carboxylate, or polycarboxylate. The anti-settling agent is selected from one or more of organic bentonite, fumed silica, polyolefin wax, and polyamide wax; The defoamer is selected from one or more of silicone defoamers and polyether defoamers; The leveling agent is selected from one or more of polyurethane, silicone, acrylic, and fluorocarbon polymers; The pH adjuster is selected from one or more of AMP-95, ammonia, dimethylethanolamine, triethanolamine, diethanolamine, monoethanolamine, N-methylethanolamine, butylethanolamine, N-aminopropylmethylethanolamine, butyldiethanolamine, sodium hydroxide, and potassium hydroxide.

9. The composite chlorinated resin composition according to claim 8, characterized in that, The leveling agent is selected from one or more of polyacrylic acid and polydimethylsiloxane.

10. The composite chlorinated resin composition according to any one of claims 1 to 9, characterized in that, It includes the following components and their weight proportions: 25-36 parts chlorinated polypropylene, 5-15 parts chlorinated polyethylene, 5-15 parts epoxy resin, 1-10 parts curing agent, 5-15 parts pigments and fillers, 20-50 parts solvent, 1-3 parts dispersant, 0.5-3 parts anti-settling agent, 0-3 parts defoamer, 1-5 parts leveling agent, and 0.1-2 parts pH adjuster.

11. An anti-corrosion coating comprising the composite chlorinated resin composition according to any one of claims 1 to 10.

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