JP2014231565A - Vinyl chloride resin thin extrusion molding and coextrusion laminate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thin extrusion molding of a vinyl chloride resin composition, with the ratio of petroleum-originated ingredients reduced, which is improved further in impact resistance and has high rigidity and a low linear thermal expansion coefficient and a coextrusion laminate.SOLUTION: An extrusion molding is composed of a vinyl chloride resin composition which comprises (A) 100 pts. mass of a vinyl chloride resin of an average degree of polymerization of 700-1,500, (B) 15-25 pts. mass of calcium carbonate powder of an average particle size of 1 μm or smaller and (C) 2-4 pts. mass of an impact resistance improver consisting of a chlorinated polyethylene, an MBS resin or an acrylic rubber, has a thickness of 2 mm or smaller and a Charpy impact strength of 20 kJ/mor higher and is suitable for interior substrate materials.

Description

  The present invention relates to a vinyl chloride resin thin extruded body and a vinyl chloride resin coextruded laminate obtained by extruding a vinyl chloride resin composition, and more specifically, a vinyl chloride resin thin extruded body excellent in impact resistance. And a vinyl chloride resin coextruded laminate having a decorative layer on the molded body.

In order to avoid the exhaustion of petroleum resources, development of resin compositions using a vinyl chloride resin having a relatively small content of petroleum-derived components of 43% by mass has been performed.
Initially, a method of adding a large amount of an inorganic filler that is not a petroleum-derived component to a vinyl chloride resin was generally performed. However, when a large amount of an inorganic filler is blended, a molding obtained from a vinyl chloride resin composition is performed. The body has a problem that impact resistance is lowered and becomes brittle, and there is a limit to increase resource saving by blending inorganic fillers.
The applicant of the present invention can reduce the ratio of petroleum-derived components without lowering the impact resistance, and can obtain a molded product having a high rigidity and a low coefficient of linear thermal expansion, particularly an extruded product. We have conducted intensive research on vinyl resin compositions, combined with the use of calcium carbonate powder with specific properties and chlorinated polyethylene, and added inorganic fillers by blending methyl methacrylate / butadiene / styrene copolymer (MBS) and acrylic rubber. It was proposed from the heading that these can be solved even if it mix | blends (patent document 1).
The improved vinyl chloride resin composition may reduce the thickness of the molded product depending on the purpose of use. However, the high compounding of the inorganic filler causes a decrease in impact resistance in the thin molded product. The problem that the use was restricted arose. In particular, extruded products of vinyl chloride resin are used as building materials such as interior base materials and exterior materials, but interior base materials are often thin-walled products and are made from vinyl chloride resin compositions containing a large amount of inorganic fillers. When the thin-walled molded product obtained is used as an interior base material, cracking is likely to occur when drilling or cutting such as punching is performed on the product, resulting in poor workability.
Conventionally, a technique for improving impact resistance by blending an inorganic filler surface-treated with a cationic polymer and an impact modifier such as chlorinated polyethylene into a vinyl chloride resin has been proposed. However, since the impact resistance is improved by highly blending the cationic polymer-treated inorganic filler and the impact modifier, the decomposition of the vinyl chloride resin is accelerated during extrusion molding, and chlorine gas is generated. There was a problem that it was difficult to do.

Japanese Unexamined Patent Publication No. 2010-1000082 JP 11-246723 A

The inventors of the present application worked on improving the impact resistance of the extruded product of the vinyl chloride resin composition without going against the problem of resource saving. As a result, instead of simply adopting a means for reducing the blending amount of the inorganic filler, in the specific vinyl chloride resin component composition, when the specific property calcium carbonate is used as the inorganic filler, the blending amount is a predetermined amount. The inventors have found that there is a remarkable impact resistance development effect in the range, and have come up with the present invention.
The object of the present invention is to provide an extruded product of a vinyl chloride resin composition in which the ratio of petroleum-derived components is reduced, and to improve the impact resistance more than before, and has a thin wall with high rigidity and low linear thermal expansion coefficient. Another object is to provide an extrusion-molded body, and further a co-extrusion laminate.

According to the present invention,
(A) 100 parts by mass of a vinyl chloride resin having an average degree of polymerization in the range of 700 to 1500;
(B) 15 to 25 parts by mass of calcium carbonate powder having an average particle size of 1 μm or less, and (C) an extruded product of a vinyl chloride resin composition comprising 2 to 4 parts by mass of an impact resistance improver,
(C) The impact modifier is at least one impact modifier selected from the group consisting of methyl methacrylate / butadiene / styrene copolymer, acrylic rubber, and chlorinated polyethylene,
There is provided a vinyl chloride resin thin extruded product (hereinafter also referred to as a thin extruded product) characterized in that the thickness of the molded product is 2 mm or less and the Charpy impact strength is 20 kJ / m ² or more.
In the invention of the thin extruded article, it is preferable that (B) the calcium carbonate powder is treated with 1% by mass or less of fatty acid based on the powder.

According to the present invention, there is also provided a vinyl chloride resin coextruded laminate in which a decorative layer is laminated by coextrusion molding on the surface of the thin extruded product,
The thickness of the decorative layer is 0.15 mm to 0.5 mm,
The decorative layer is a layer made of a co-extruded product of a decorative layer resin composition containing at least one decorative layer resin selected from the group consisting of vinyl chloride resin, acrylic resin, ABS resin and ASA resin;
A vinyl chloride resin laminate is provided in which the Charpy impact strength of the coextruded laminate is 10 kJ / m ² or more.
In the invention of the vinyl chloride resin laminate, it is preferable that the decorative layer resin composition further contains at least one organic filler selected from the group consisting of wood powder, paper powder, and bamboo powder.

The vinyl chloride resin thin-walled extrusion molded product of the present invention has improved the impact resistance further than before, while satisfying the problem of resource saving by using a vinyl chloride resin in which the ratio of petroleum-derived components is reduced, In addition, the present invention provides a thin extruded product having a high rigidity and a low coefficient of linear thermal expansion, and further a coextrusion laminate.
The thin-walled extrusion molding and co-extrusion laminate are thin-wall products such as cloth finishing base materials, ceiling parting materials, ceiling / wall inspection frame materials, sash frame materials, bathroom / dressing room wall panels, etc. It is useful as a certain interior base material, and has good rigidity and is difficult to bend. Further, it is possible to perform punching or cutting such as punching, and the material is rich in workability.

  The resin composition used for the extrusion molding of the present invention has (A) a vinyl chloride resin having a good resource-saving property as a main component, and further (B) calcium carbonate and a specific (C) impact modifier. Contains as a component.

<(A) Vinyl chloride resin>
The vinyl chloride resin used in the present invention is a homopolymer of vinyl chloride, and the content of petroleum-derived components is small compared to other resins. That is, by using such a vinyl chloride resin as a main component, excellent resource saving can be ensured.
As such a vinyl chloride resin, those having an average degree of polymerization of 700 to 1500 are used. That is, when the average degree of polymerization is outside this range, for example, extrusion molding becomes difficult, or it becomes difficult to secure desired physical properties for the molded body.

<(B) Calcium carbonate powder>
In a mixed system in which a specific (C) impact modifier described later and the above (A) vinyl chloride resin are specifically blended, the (B) calcium carbonate powder having the following properties exhibits a specific behavior. That is, (B) the blending amount of calcium carbonate powder and the impact resistance of the molded product do not necessarily have a correlation, and (A) the outstanding impact resistance at a blending amount of 15 to 25 parts by mass per 100 parts by mass of the vinyl chloride resin. Improvement is recognized. When the amount is less than 15 parts by mass or more than 25 parts by mass, the impact resistance is lowered, and the Charpy impact strength of the molded body does not become ²⁰ kJ / m ² or more. That is, even if the blending amount of (B) calcium carbonate powder is decreased, the impact resistance is not necessarily improved, but the cause is not clear.

It is essential that the (B) calcium carbonate powder is a calcium carbonate powder having an average particle size of 1 μm or less. That is, by using calcium carbonate powder having an average particle size of 1 μm or less, the calcium carbonate powder can be finely dispersed almost uniformly in the extruded product of the present invention. As a result, the impact resistance is effectively reduced. In addition, the rigidity can be increased and the linear thermal expansion coefficient can be decreased.
On the other hand, when calcium carbonate powder having an average particle size larger than the above range is used, the calcium carbonate powder cannot be uniformly finely dispersed, and the above-mentioned specific behavior of impact resistance is not recognized.

  In the present invention, the above-mentioned calcium carbonate powder may be either light calcium carbonate or heavy calcium carbonate, and the particle shape thereof may be any of a regular shape such as a spherical shape, an irregular shape, and a whisker shape. May be. In the present invention, the average particle diameter of calcium carbonate is a calculated value calculated from the specific surface area of 1 g of calcium carbonate powder as specified in the examples described later.

Moreover, it is suitable from the viewpoint of improving dispersibility and impact resistance that the (B) calcium carbonate powder is surface-treated with a fatty acid.
As the fatty acid used for the surface treatment, fatty acids such as stearic acid, palmitic acid, lauric acid and oleic acid are preferably used, and these may be used as a mixture of two or more. In addition, as a fatty acid, not only a fatty acid but fatty acid salt with alkali metals, such as calcium, and also fatty acid ester may be sufficient.

The surface treatment amount of the fatty acid is preferably 1% by mass or less, particularly 0.1 to 0.5% by mass with respect to calcium carbonate. That is, when surface treatment is performed with a large amount of fatty acid, when extrusion molding or the like is performed, calcium carbonate adheres to the screw surface, resulting in a non-uniform composition of the resulting extruded molded body, and a reduction in various physical properties. May occur.
The surface treatment method using fatty acid is not particularly limited. Usually, a predetermined amount of fatty acid is dissolved in a solvent to form a fatty acid solution, and calcium carbonate powder is put into the solution, mixed, and then the calcium carbonate is separated from the solution. A drying method is adopted.

<(C) Impact resistance improver>
In the extruded product of the present invention, it is essential to contain at least one type of (C) impact modifier selected from the group consisting of methyl methacrylate / butadiene / styrene copolymer, acrylic rubber, and chlorinated polyethylene. . That is, when these specific impact modifiers are blended with vinyl chloride resin, when calcium carbonate powder having an average particle size of 1 μm or less is used, the impact resistance is proportional to the decrease in the blended amount of calcium carbonate. Without decreasing, the blending amount is specifically increased at 15 to 25 parts by mass (based on 100 parts by mass of vinyl chloride resin). On the other hand, even when the above impact resistance improver is used, when the average particle diameter of the calcium carbonate powder exceeds 1 μm, for example, when it is 1.8 μm, the impact resistance strength is gradually increased in proportion to the decrease in the blending amount. To do. However, its absolute value is extremely low, about 1/3 to 1/2 of that when calcium carbonate powder having an average particle size of 1 μm or less is used, and satisfactory impact strength cannot be obtained.
(C) The compounding quantity of an impact resistance improving agent is 2-4 mass parts with respect to 100 mass parts of vinyl chloride resins. If the blending amount is less than 2 parts by mass, the impact resistance cannot be improved, and even if it is used in a larger amount than 4 parts by mass, the effect of improving the impact resistance is not only increased. In addition, the specific impact resistance improvement by the blending of (B) calcium carbonate powder described above is not observed.
The (C) impact resistance improver is chlorinated polyethylene, methyl methacrylate / butadiene / styrene copolymer, or acrylic rubber. However, the impact resistance improver is not only impact resistant but also contributes to improved weather resistance. System rubber is preferred.

As the chlorinated polyethylene, those having a chlorine content of 30 to 40% by mass are particularly preferably used. As the chlorinated polyethylene, commercially available products such as Elaslene 301A, 351TA (made by Showa Denko KK) and Diasolac H-135 (made by Daiso) can be used. Chlorinated polyethylene has good compatibility with the vinyl chloride resin, and can improve impact resistance by blending a small amount. The chlorinated polyethylene having a chlorine content includes an amorphous one and a crystalline one, and an amorphous one is preferable for improving impact resistance, and in particular, Mooney viscosity MS _{1 + 4} ( 121 degreeC) is in the range of 80-100.

  As the methyl methacrylate / butadiene / styrene copolymer (MBS), commercially available products such as Methbrene C-223 (manufactured by Mitsubishi Rayon Co., Ltd.) and Kane Ace B series (manufactured by Kaneka Corporation) can be used.

  Acrylic rubber can not only further improve impact resistance, but also improve weather resistance. As the acrylic rubber, conventionally known acrylic rubber is used, and various acrylic acid alkyl esters such as ethyl acrylate, butyl acrylate, methoxyethyl acrylate, etc. are used as basic constituent components, and 2-chloroethyl vinyl ether, allyl glycidyl. There are copolymers with functional groups such as ether and ethylidene norbornene, or terpolymers with components having methyl acrylate, ethylene and carboxyl groups, and they have excellent heat and oil resistance. Known as a polymer. In addition, this acrylic rubber can also be used as a multi-layer structure in which methyl methacrylate (MMA) or acrylic ester is grafted on a rubber-like core made of styrene butadiene or acrylic ester, called core-shell rubber. It is commercially available as FM (manufactured by Kaneka Co., Ltd.), metabrene W-300 (manufactured by Mitsubishi Rayon Co., Ltd.) and the like.

<Other ingredients>
In the present invention, various additives other than the above can be blended on condition that the content ratio of petroleum-derived components can be maintained within a certain range without increasing.

  For example, a heat stabilizer for preventing coloration at the time of molding can be blended. As such a heat stabilizer, inorganic stabilizers that do not contain petroleum-derived components, such as zeolite and zinc ions, are used. Zeolite to be exchanged, hydrous or anhydrous amorphous calcium silicate, calcium silicate, hydrotalcite compound, zinc hydrotalcite compound, perchloric acid hydrotalcite compound, lithium aluminum composite hydroxide In addition, a perchloric acid type lithium aluminum composite oxide is preferable. In particular, calcium-zinc based heat stabilizers are suitable in the resin system of the present invention.

  Furthermore, lubricants such as polyethylene wax or higher fatty acids such as glycerol monostearate, glycerol monooleate, glycerol diacetomonolaurate, sorbitan laurate, propylene glycol monolaurate, stearyl stearate, and various other antioxidants An agent, a light stabilizer, a pigment, an antistatic agent, an antifogging agent, a plate-out preventing agent, a flame retardant and the like can be appropriately blended within a range in which various properties such as impact resistance and rigidity are not impaired.

<Thin resin composition>
The thin-walled vinyl chloride resin composition (hereinafter also referred to as thin-walled resin composition) to be subjected to the extrusion molding of the present invention is within the range of the above-mentioned blending amounts of the components (A) to (C). It is prepared by blending other components and mixing the components uniformly, for example, by melt-kneading. Alternatively, the blended components may be dry blended using a blender, a Henschel mixer, or the like to obtain the composition.

<Thin extruded product>
The prepared thin-walled resin composition has excellent resource-saving properties and can be used as a molded body of any shape by providing it to a molding means for extrusion molding. Therefore, it is highly suitable for use as a thin molded article, particularly as an interior base material.
As a method for producing a thin-walled extruded product, a method of using an extruder is typically employed. That is, a mixture obtained by dry blending each component in advance into a hopper, heat melting and uniform mixing in a cylinder portion incorporating a screw, and subsequent melting into a mold (die) for a thin-walled resin composition It is manufactured by continuous operation of feeding and extrusion. As the extruder, a known extruder with a single or biaxial screw is used, and each component is kneaded and extruded by a single extruder, which is easy to operate and produces. It has the advantage of high performance.
The heating and melting temperature, mold temperature, heating and melting time, molding time, and other extrusion molding conditions are appropriately determined according to the component composition of the thin-walled resin composition used for molding.
The thickness of the thin extruded body is 2 mm or less in order to obtain a thin interior base material. However, as described above, even if the thickness is 2 mm or less, excellent impact strength is exhibited.

<Vinyl chloride resin coextrusion laminate>
In the present invention, a mode in which a decorative layer is directly laminated on the surface of the thin extruded body obtained by the above method is suitably employed.
The decorative layer has a thickness of 0.15 mm to 0.50 mm and contains at least one decorative layer resin selected from the group consisting of vinyl chloride resin, acrylic resin, ABS resin, and ASA resin. It is a layer obtained by co-extrusion of the composition at the time of molding a thin extruded body, and is a layer that imparts decorativeness. If the thickness is less than 0.15 mm, the concealment property is low and the surface of the thin extruded product may be exposed. If the thickness exceeds 0.50 mm, the thickness becomes too thick for the base thin molded product, resulting in a decrease in impact strength and the like. There is a fear.
Since it is coextruded and directly laminated on the surface of the thin extruded body, the adhesion between them is extremely high, and the Charpy impact strength of the resulting vinyl chloride resin coextruded laminate can achieve 10 kJ / m ² or more. it can.

<Coating layer composition>
The decorative layer composition contains at least one decorative layer resin selected from the group consisting of an acrylic resin, an ABS resin, and an ASA resin, and is coextruded to form a decorative layer.
As the acrylic resin, a known resin such as polymethyl methacrylate can be used.
ABS resin is a copolymer of acrylonitrile, butadiene, and styrene, and is excellent in impact resistance, rigidity, tensile strength, and gloss. Its structure is a heterogeneous structure in which an elastic body such as polybutadiene is dispersed in an island shape in a matrix such as AS (acrylonitrile styrene) resin. To be precise, the three monomers of acrylonitrile, butadiene and styrene are co-polymerized. It is said that it is not a polymer. The content of acrylonitrile is generally 20 to 35%, but there are some that are about 40%. Butadiene is about 5 to 30%. There are also many improved ABS resins in which some of the above three components are replaced to improve properties such as gloss, fluidity, and heat resistance. These are commercially available as “Techno ABS” (Technopolymer), “UMGABS” (UMGABS), “Denka ABS” (Denki Kagaku Kogyo), etc., and can be selected and used according to the purpose. .
The ASA resin is a copolymer resin of acrylonitrile, styrene, and methyl acrylate. It is a resin that has an acrylic rubber component instead of the butadiene component of ABS resin and has excellent weather resistance while maintaining impact resistance, and is known per se. For example, it is commercially available as “Diarack” series from UMGABS.
Among these resins, ABS resin, ASA resin, or a mixed resin thereof is preferable from the viewpoint of impact resistance, rigidity, and weather resistance.

The cosmetic layer composition may contain a colorant for exhibiting decorativeness. The colorant is appropriately determined and contained from the viewpoint of the color and decorativeness of the decorative layer, and the pigment is dispersed in inorganic pigments such as titanium oxide, zinc oxide, iron oxide, and carbon black, and further in a vinyl chloride resin and a plasticizer. Commercially available colorants with various shades are preferably used.
Although the compounding quantity of decorative layer resin and a coloring agent is not specifically limited, Usually, 0.1-10 mass parts of coloring agents are mix | blended with respect to 100 mass parts of decorative layer resin. As a mixing method, a dry blend method using a blender or a Henschel mixer is generally used.

  In addition to the heat stabilizer, the cosmetic layer composition further includes a lubricant, other various antioxidants, a light stabilizer, an antistatic agent, an antifogging agent, a plate-out preventing agent, a flame retardant, and the like. It can mix | blend suitably as long as various characteristics, such as impact property and rigidity, are not impaired. In particular, it is preferable to contain at least one organic filler selected from the group consisting of wood powder, paper powder, and bamboo powder in order to obtain a woodgrain interior base material.

<Makeup layer>
The decorative layer is formed and laminated at the same time by co-extrusion of the decorative layer composition using a co-extrusion molding machine at the time of extrusion of the thin-wall extruded product.
Specifically, using a first extruder corresponding to the thin-walled extrusion molded product and a second extruder corresponding to the decorative layer, the thin-walled resin composition is melt-kneaded in the first extruder. Then, the decorative layer composition is melt-kneaded in a second extruder. In each composition, the respective components are preliminarily dry blended and supplied to the hopper of each extruder. As the extruder, a known extruder having a single-screw or a twin-screw is used. The resin flow of the thin extruded body from the first extruder and the resin flow of the decorative layer from the second extruder are merged in a multilayer multiple die and extruded into the air in a laminated state. Thereafter, the surface of the laminate is cooled to obtain a vinyl chloride resin coextruded laminate.

  The invention is further illustrated in the following examples. The following examples are illustrative and the invention is not limited in any way. In addition, not all combinations of features described in the embodiments are essential to the solution means of the present invention.

Various components used in the following examples and comparative examples are as follows.
(A) Vinyl chloride resin (PVC):

(A-1) “ZEST1000” (manufactured by Daiichi PVC) Average polymerization degree 1000
(B) Calcium carbonate:
(B-1) “CALCIES P” (manufactured by Kamishima Chemical Co., Ltd.)
Fatty acid treatment, average particle size 0.15 μm
(B-2) “NITOREX30P” (manufactured by Nitto Flour Chemical Industries)
No treatment, average particle size 0.7μm
(B-3) “NN200” (manufactured by Nitto Flour Industry Co., Ltd.)
No treatment, average particle size 14.8μm
(B-4) “AFF-95” (manufactured by Phimatech)
Cation treatment, average particle size 0.9μm
(C) Impact modifier:
(C-1) "Kane Ace FM-53" (manufactured by Kaneka Corporation; acrylic rubber)
(C-2) "Elasticene 351TA" (manufactured by Showa Denko KK; chlorinated polyethylene)
(C-3) “Kane Ace B-564” (manufactured by Kaneka Corporation; MBS resin)
(D) Colorant (D-1) Titanium oxide powder, average particle size 0.25 μm
(D-2) Iron oxide powder, average particle size 0.7 μm
(E) Cosmetic layer resin:
(E-1) “ZEST1000” (manufactured by Daiichi PVC) Average polymerization degree 1000
(E-2) “Santac ET70” (manufactured by A & L of Japan; ABS resin)
(E-3) "ACRYPET VH" (manufactured by Ryokan Sangyo; acrylic resin)
(E-4) “Dialac E610” (manufactured by UMG ABS; ASA resin)
(F) Other additives:
(F-1) “Ca—Zn heat stabilizer” (manufactured by Sakai Chemical Co., Ltd.)
(F-2) Wood flour, average particle size 100 μm

Examples 1-5, Comparative Examples 1-4
According to the formulation shown in Table 1, vinyl chloride resin (PVC), calcium carbonate, impact modifier and other additives were mixed in advance by dry blending to obtain a thin-walled resin composition. This composition was put into a hopper of an extruder, melt-kneaded at a cylinder temperature of 155 to 190 ° C., and extruded to produce a sheet-like thin extruded body having a thickness of 1 mm. About the obtained molded object, various properties were measured by the following methods, and the results are shown in Table 1.
(1) Charpy impact strength (23 ° C)
The measurement was performed in accordance with JIS K-7111 appendix.
Measurement temperature: 23 ° C
Test piece: The molded body obtained by extrusion molding is attached to JIS K-7111 Annex 4.
Test machine processed into specified No. 5 test piece: JIS K-7111 Annex 2 specified test machine was used

From the comparison between the examples and the comparative examples, when the blending amount of the calcium carbonate powder is in the range of 15 to 25 parts by mass (based on 100 parts by mass of PVC), the Charpy impact strength is specifically high and 20 kJ / m ² or more. Satisfied. Even if the blending amount is within the above range, when the average particle size of the calcium carbonate powder is large, the Charpy impact strength is extremely lowered.

Examples 6-10
According to the formulation shown in Table 1, a vinyl chloride resin laminate was produced using a coextrusion molding machine. The thickness of the lower-layer extrudate was 1 mm, and the thickness of the decorative layer was 0.3 mm. Preparation of each composition for a thin-walled extruded product and a decorative layer was carried out in the same manner as in Examples 1 to 5. The results are also shown in Table 1.

Claims (4)

(A) 100 parts by mass of a vinyl chloride resin having an average degree of polymerization in the range of 700 to 1500;
(B) 15 to 25 parts by mass of calcium carbonate powder having an average particle size of 1 μm or less, and (C) an extruded product of a vinyl chloride resin composition comprising 2 to 4 parts by mass of an impact resistance improver,
(C) The impact modifier is at least one impact modifier selected from the group consisting of methyl methacrylate / butadiene / styrene copolymer, acrylic rubber, and chlorinated polyethylene,
A vinyl chloride resin thin-walled extruded product, wherein the molded product has a thickness of 2 mm or less and a Charpy impact strength of 20 kJ / m ² or more.   The vinyl chloride resin thin-walled extruded article according to claim 1, wherein the calcium carbonate powder is treated with 1% by mass or less of fatty acid based on the powder. A vinyl chloride resin co-extruded laminate in which a decorative layer is laminated by coextrusion molding on the surface of the vinyl chloride resin thin-walled extruded product according to claim 1 or 2,
The thickness of the decorative layer is 0.15 mm to 0.5 mm,
The decorative layer contains at least one decorative layer resin selected from the group consisting of vinyl chloride resin, acrylic resin, acrylonitrile-butadiene-styrene resin (ABS resin) and acrylonitrile-styrene-acrylate resin (ASA resin). It is a layer made of a co-extruded product of a decorative layer resin composition,
A vinyl chloride resin laminate, wherein the coextruded laminate has a Charpy impact strength of 10 kJ / m ² or more.   The vinyl chloride resin coextrusion according to claim 3, wherein the decorative layer resin composition further contains at least one organic filler selected from the group consisting of wood powder, paper powder, and bamboo powder. Laminated body.