JP2002120344A - Tarpaulin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide tarpaulin formed by laminating an ethylenic polymer on the surface of a base fabric and excellent not only in flexibility, scratch resistance but also in high frequency welder processability. SOLUTION: The tarpaulin is formed by laminating a resin composition which contains a component (A) and a component (B), characterized by that the occupying ratio of the component (A) is 10 wt.% or more and the content of an acyl group-containing ethylenic unsaturated compound unit originating from the component (B) is 6-30 wt.% and has a melt flow rate of 0.1-80 g/10 min, on at least the single surface of a fiber knitted fabric being a base fabric. The component (A) comprises an ethylene/α-olefin copolymer with a melt flow rate of 0.1-100 g/10 min consisting of ethylene and a 3-18C α-olefin and the component (B) comprises an ethylene/acyl group-containing ethylenic unsaturated compound copolymer with a melt flow rate of 0.05-100 g/10 min consisting of ethylene and an acyl group-containing unsaturated compound.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tarpaulin in which an ethylene-based polymer is laminated on the surface of a base fabric, and more particularly, it is excellent in flexibility and abrasion resistance, and is excellent in high-frequency weldability and flexibility. Logistics materials such as containers, civil engineering and construction materials such as construction covering sheets and curing sheets, and
The present invention relates to a tarpaulin suitably used for industrial materials such as a car top, a tent, and a water tank.

[0002]

2. Description of the Related Art Conventionally, tarpaulins have been used in which a fiber woven fabric is used as a base fabric and a soft vinyl chloride resin is laminated on at least one side thereof. In a flexible container formed by high-frequency welding, the problem of migration of the plasticizer in the soft vinyl chloride resin into the contents has been pointed out, and as a laminate having no such problem, an ethylene-vinyl acetate copolymer was used. However, tarpaulins on which an ethylene-vinyl acetate copolymer has been laminated have drawbacks such as poor flexibility, poor handling properties, and poor scratch resistance. Was. In order to solve these drawbacks, it has been proposed to mix a soft material, but there is a problem that high-frequency weldability is reduced due to improvement in flexibility and the like. At present, there is a demand for a tarpaulin that can improve flexibility and abrasion resistance without lowering high-frequency weldability.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned state of the art, and accordingly, the present invention relates to a tarpaulin having an ethylene-based polymer laminated on the surface of a base cloth. It is an object of the present invention to provide a tarpaulin having excellent heat resistance and abrasion resistance and excellent high frequency weldability.

[0004]

According to the present invention, a fiber woven fabric is used as a base fabric, and at least one surface thereof contains the following components (A) and (B), and the proportion of the component (A) is as follows. 10
% By weight or more, the content of the acyl group-containing ethylenically unsaturated compound unit derived from the component (B) is 6 to 30% by weight, and the melt flow rate is 0.1 to 80 g / 10 minutes. The gist of the present invention is a tarpaulin formed by stacking

(A) It is composed of ethylene and an α-olefin having 3 to 18 carbon atoms, and has a maximum peak temperature of 10 to 80 ° C. in an elution curve obtained by temperature-elution fractionation.
Ethylene having a ratio (H / W) of the peak height (H) to the width (W) of the 1/3 height at the maximum peak is 2 or more and the melt flow rate is 0.1 to 100 g / 10 min. α-olefin copolymer (B) Consists of ethylene and an acyl group-containing ethylenically unsaturated compound, and has a melt flow rate of 0.05 to 100.
g / 10 min ethylene-acyl group-containing ethylenically unsaturated compound copolymer

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION In the tarpaulin of the present invention, as a fiber knitted or woven fabric as a base fabric, those conventionally used for this type of base fabric are used.
A woven fabric such as a plain weave, a twill weave, a satin weave, or a knitted fabric such as a synthetic fiber such as a polyester fiber, a polyamide fiber, a polyolefin fiber, or a polyacryl fiber, or a natural fiber such as cotton or hemp. The fiber thickness is 500-100
At about 0 denier, for example, in the case of plain weave, the number of shots is about (10-30) × (15-35) / inch. These fiber woven fabrics generally have a width of about 0.5 to 3 m and a thickness of about 0.2 to 1 mm.

Further, in the tarpaulin of the present invention, one of the components (A) constituting the resin composition laminated on at least one side of the fiber woven fabric as a base fabric is ethylene and C3 to C18. consisting of α-olefin,
The temperature of the maximum peak in the elution curve obtained by the temperature-rise elution fractionation is 10 to 80 ° C., and the ratio (H / W) of the peak height (H) to the width (W) of the 1/3 height of the maximum peak is 2 As described above, the melt flow rate is 0.
It is essential that the ethylene-α-olefin copolymer be 1 to 100 g / 10 minutes.

The α-olefin having 3 to 18 carbon atoms includes, for example, propylene, 1-butene, 3-methyl-1-butene, 1-pentene, 4-methyl-1-pentene, 4,4- Dimethyl-1-pentene, 1-hexene, 4-methyl-1-hexene, 1-heptene, 1-octene, 1-decene, 1-octadecene and the like,
Among them, it preferably has 4 to 12 carbon atoms, and has 4 to 10 carbon atoms such as 1-butene, 1-hexene, 4-methyl-1-hexene, 1-heptene, 1-octene and 1-decene.
Is particularly preferred. The content of this α-olefin in the ethylene-α-olefin copolymer is 1
It is preferably from 20 to 20% by weight, particularly preferably from 2 to 15% by weight.

The ethylene-α-olefin copolymer of the component (A) in the present invention has a maximum peak temperature of 10 to 10 in an elution curve obtained by temperature-rise elution fractionation.
80 ° C., the ratio (H / W) of the peak height (H) to the width (W) of the 高 height at the maximum peak is 2 or more, and the temperature of the maximum peak is 20 to 75 ° C., The ratio (H / W) of the peak height (H) to the width (W) of the / 3 height is preferably 2.5 or more. If the temperature of the maximum peak is less than the above range, the heat resistance as a tarpaulin will be deteriorated, while if it is more than the above range, flexibility and scratch resistance will be inferior. Also, 1/3 height width (W)
If the ratio (H / W) of the peak height (H) to the above is less than the above range, the flexibility as a tarpaulin will be inferior.

[0010] Here, the temperature rise elution fractionation (Temperat
ure Rising Elution Fractionation (TREF)
For example, Journal of Applied Polymer Science, Vol.2
6, pp. 4217-4231 (1981), which in principle dissolves the polymer completely in a solvent at a high temperature and then cools the polymer to remove the inert carrier that has been present in the solution. A thin polymer layer is formed on the surface. At this time, from a highly crystalline component which is easy to crystallize (for example, a linear component having no branch in polyethylene) to a low crystalline or amorphous component which is hard to be crystallized (for example, a component having many short chain branches in polyethylene). A polymer layer is formed. Then, when the temperature is raised continuously or stepwise, contrary to the above, the low-crystalline or non-crystalline component elutes, and finally the high-crystalline component elutes. The composition distribution of the polymer is analyzed from the elution amount at each temperature and the elution curve drawn by the elution temperature.

In the present invention, the measurement of the elution curve
The test was performed under the following conditions. Temperature rise elution fractionation (TREF), in which the sample is fractionated using the difference in dissolution temperature as a measuring device
Mechanism and size exclusion chromatograph (Size Exclusion Chromatogra)
phy; SEC) was connected online (Mitsubishi Chemical Corporation's "CFC T150A").

Using o-dichlorobenzene as a solvent,
The polymer is dissolved at 140 ° C. to a concentration of 4 mg / ml and injected into the sample loop of the measuring device. 0.4 ml of the sample solution in the sample loop is injected into a stainless steel column attached to a TREF device having an inner diameter of 4 mm and a length of 150 mm filled with glass beads as an inert carrier, and then 140 ° C. at a rate of 1 ° C./min. To 0 ° C. and coat the inert carrier surface. After holding the column at 0 ° C. for 30 minutes, 2 ml of the dissolved component at a temperature of 0 ° C. was passed through the TREF column at a flow rate of 1 ml / min.
EC column (Showa Denko “AD80M / S”, 3)
Inject into While the molecular size is being fractionated by SEC, the operation of raising the temperature of the TREF column to the next elution temperature (5 ° C.), maintaining the temperature at that temperature for 30 minutes, and then injecting into the SEC column is repeated. The measurement of each elution section by SEC was performed at intervals of 39 minutes. Elution temperatures are 0, 5, 1
0, 15, 20, 25, 30, 35, 40, 45, 4
9, 52, 55, 58, 61, 64, 67, 70, 7
3, 76, 79, 82, 85, 88, 91, 94, 9
7, 100, 102, 120, and 140 ° C.,
The temperature was raised stepwise.

The solution separated into molecular sizes by the SEC column is measured for absorbance in proportion to the polymer concentration (detected by the stretching vibration of methylene having a wavelength of 3.42 μm) using an infrared spectrophotometer attached to the apparatus. Obtain a chromatogram of the sections. Using the built-in data processing software, a base line of the obtained chromatogram of each elution temperature section is drawn and arithmetic processing is performed. Integrate the area of each chromatogram and calculate the integrated elution curve. Further, a derivative elution curve is calculated by differentiating the integral elution curve with respect to temperature. The plot of the calculation results is output to a printer, and the plot of the output differential elution curve is plotted on the horizontal axis, where the elution temperature is 89.3 mm per 100 ° C., and the vertical axis is the differential amount (the total integrated elution amount is standardized to 1.0, The amount of change at 1 ° C. was defined as a differential amount.) The measurement was performed at 76.5 mm per 0.1.

The ethylene-α-olefin copolymer of the component (A) in the present invention has a melt flow rate of 0.1 to 100 g / m at a temperature of 190 ° C. and a load of 21.18 N according to JIS K7210. It is 10 minutes, and preferably 0.3 to 80 g / 10 minutes. If the melt flow rate is less than the above range, the processability when laminating the base fabric as a resin composition is inferior.On the other hand, if the melt flow rate is more than the above range, the mechanical strength and processability as the resin composition are inferior. Become.

In the present invention, the ethylene-α-olefin copolymer has a density of 0.850 to 0.920 g /
preferably those cm ^3, and than further These ethylene -α- olefin copolymer, copolymerized in the presence of such Ziegler-Natta type catalyst and Phillips-type catalysts which are widely conventionally, It is preferably copolymerized in the presence of a Kaminsky type catalyst.

Ethylene-α-catalyst by Kaminski type catalyst
Olefin copolymers are described, for example, in JP-A-58-1930.
No. 9, No. 59-95292, No. 60-35005,
No. 60-35006, No. 60-35007, No. 60
No. 35008, No. 60-35009, No. 61-13
No. 0314, JP-A-3-1630088, EP-A-420436, U.S. Pat.
No. 38, and a metallocene catalyst, particularly a metallocene-alumoxane catalyst described in WO91 / 04257 and the like, or described in, for example, WO92 / 07123 and the like. ,
It can be produced by a polymerization method such as a gas phase method, a slurry method, a solution method, and a high-pressure ionic polymerization method using a catalyst composed of a metallocene compound and a compound that reacts with the compound to form a stable anion.

In the present invention, the ethylene-α-
Olefin copolymer, mono-, di-, or tri-cyclopentadienyl ring or substituted cyclopentadienyl ring as a ligand, titanium, zirconium, nickel,
It is preferably polymerized using a catalyst using a tetravalent transition metal compound such as palladium, hafnium, or platinum as a metallocene compound.

In the tarpaulin of the present invention, the other component (B) constituting the resin composition laminated on at least one surface of the fiber woven fabric as a base fabric is ethylene, an ethyl group containing an acyl group and It comprises an unsaturated compound and has a melt flow rate of 0.05 to 100 g / 10
It is essential that the copolymer be an ethylene-acyl group-containing ethylenically unsaturated compound copolymer.

Here, the acyl group-containing ethylenically unsaturated compound includes, for example, vinyl esters such as vinyl acetate and vinyl propionate, and (meth) acrylic acid [where "(meth) acryl" means Acrylic and methacrylic are meant. Unsaturated carboxylic acids such as
Methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate,
Alkyl esters of unsaturated carboxylic acids such as (meth) octyl acrylate, unsaturated amides such as (meth) acrylamide, unsaturated nitriles such as (meth) acrylonitrile, etc., among which vinyl esters, or Unsaturated carboxylic acids or alkyl esters thereof are preferred, and vinyl acetate or (meth) acrylic acid or alkyl esters thereof are particularly preferred.

The ethylene-acyl group-containing ethylenically unsaturated compound copolymer of the component (B) in the present invention has a melt flow rate of 0.05 to 1 measured under the above-mentioned conditions.
00 g / 10 min, preferably 0.1 to 80 g / 10 min. When the melt flow rate is less than the above range, the processability when laminating the resin composition on the base fabric is inferior. On the other hand, when the melt flow rate is more than the above range, the mechanical strength of the resin composition is inferior.

In the present invention, the ethylene-acyl group-containing ethylenically unsaturated compound copolymer preferably has an acyl group-containing ethylenically unsaturated compound unit content of 7 to 50% by weight.

In the tarpaulin of the present invention, the resin composition laminated on at least one surface of the fiber woven fabric as a base fabric is composed of the ethylene-α-olefin copolymer of the component (A) and the (B). ) Component ethylene-acyl group-containing ethylenically unsaturated compound copolymer, wherein the proportion of the component (A) is 10% by weight or more, and the acyl group-containing ethylenically unsaturated compound derived from the component (B). It is essential that the content of the saturated compound unit is 6 to 30% by weight.

If the proportion of the component (A) in the resin composition is less than the above range, the abrasion resistance as a tarpaulin is inferior, and the acyl group-containing ethylenically unsaturated compound derived from the component (B). When the content of the unit is less than the above range, the high-frequency weldability as a tarpaulin is inferior. On the other hand, when the content is more than the above range, the scratch resistance is inferior and the heat resistance is also deteriorated.

The resin composition according to the present invention has a melt flow rate measured under the above-described conditions of 0.1 to 80 g / g.
10 minutes, and preferably 0.3 to 60 g / 10 minutes. If the melt flow rate is less than the above range,
The workability at the time of laminating on the base fabric is inferior. On the other hand, when it exceeds the above range, the mechanical strength and the workability are inferior.

In the resin composition, the composition ratio of the ethylene-α-olefin copolymer of the component (A) and the ethylene-acyl group-containing ethylenically unsaturated compound copolymer of the component (B) is as follows: The component (A) is 10 to 80% by weight based on the total amount of the component (A) and the component (B), and
The component is preferably 90 to 20% by weight, the component (A) is 20 to 70% by weight, and the component (B) is 80 to 30% by weight.
Is particularly preferred.

When the component (A) is less than the above range and the component (B) exceeds the above range, the scratch resistance as a tarpaulin tends to be inferior.
If the component is less than the above range, the flexibility as a tarpaulin will be insufficient, and the high frequency weldability tends to be inferior.

[0027] The tarpaulin of the present invention comprises the above-mentioned fiber woven fabric as a base fabric, on at least one side thereof, preferably on both sides thereof.
The resin composition containing the component (A) and the component (B) is laminated. Examples of the laminating method include a conventionally known method such as a calendering method, an extrusion laminating method, a dry laminating method, And an impregnation method can be used. Among them, the calendering method is preferred.

The resin composition layer of the tarpaulin of the present invention may contain, if necessary, other resins and rubbers, and various kinds of resins commonly used for thermoplastic resins, as long as the effects of the present invention are not impaired. Additives, for example, antioxidants, heat stabilizers, light stabilizers, ultraviolet absorbers, nucleating agents, neutralizing agents, lubricants, antistatic agents, antiblocking agents, slip agents, antifogging agents, dispersants, fluids Property improver, release agent, adhesion promoter,
Flame retardants, coloring agents, and fillers such as aluminum hydroxide, magnesium hydroxide, calcium carbonate, titanium oxide, silica, hydrated silicon dioxide, white carbon, talc, and carbon black may be added.

The tarpaulin of the present invention comprises, as necessary, the ethylene-α-olefin copolymer (A) and the ethylene-acyl group-containing ethylenically unsaturated compound copolymer (B). After uniformly mixed with a tumbler blender, ribbon blender, V-type blender, Henschel mixer, etc., together with other resins and additives used, they are melted by a single-screw or twin-screw extruder, roll, Banbury mixer, kneader, Brabender, etc. After being prepared as a resin composition by kneading, it is formed into a sheet by a calender roll and melt-laminated on a base fabric, or melt-extruded into a sheet from a sheet forming machine equipped with a T-die, and extruded and laminated on the base fabric. Manufactured by laminating or laminating the formed sheet and base cloth by dry lamination using an adhesive, etc.

In this case, the temperature of the resin composition in the melt lamination on one or both sides of the base fabric is usually about 140 to 160 ° C. in the case of, for example, a calendering method.
The thickness of the resin composition layer is 200 to 1000 per surface.
It is about μm.

The tarpaulin of the present invention is cut, if necessary, and processed into a desired shape by high-frequency welding.
It is suitably used as a logistics material such as a flexible container, a civil engineering construction material such as a construction covering sheet and a curing sheet, and an industrial material such as a car top, a tent, and a water tank. In this case, the high frequency welding process is performed at a frequency of 10 to 100M.
In the range of Hz, the welding time is 1 to 60 seconds.

[0032]

EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples, but the present invention is not limited to the following examples unless it exceeds the gist of the invention. The ethylene-α-olefin copolymer (A) and the ethylene-acyl group-containing ethylenically unsaturated compound copolymer (B) used in the following Examples and Comparative Examples are shown below.

(A) Component A-1; which is copolymerized in the presence of a Kaminski type catalyst, contains 1-hexene as an α-olefin, and has a TREF elution curve with a maximum peak temperature of 58 ° C. , H
/ W is 3.9, the density is 0.898 g / cm ³ , and the melt flow rate is 2.2 g / 10 minutes. An ethylene-1-hexene copolymer ("Kernel KF-2" manufactured by Nippon Polychem Co., Ltd.)
61 "). A-2: copolymerized in the presence of a Kaminsky type catalyst, containing 1-octene as an α-olefin, and having a maximum peak temperature of 30 ° C.
/ W is 3.1, a density of 0.870 g / cm ^3, melt flow rate is 5.0 g / 10 min ethylene-1-octene copolymer (DuPont Dow Elastomers Co. "EG8200").

A-3 (for Comparative Example): polymerized in the presence of a Ziegler-type catalyst, the maximum peak temperature of the TREF elution curve is 98 ° C., the H / W is 8.7, and the density is 0.
964 g / cm ³ , melt flow rate 7.0 g / 1
0 minute ethylene homopolymer (“H” manufactured by Nippon Polychem Co., Ltd.)
J560 "). A-4 (for Comparative Example); copolymerized in the presence of a Ziegler-type catalyst, containing 1-octene as an α-olefin, and having a maximum peak temperature of 76 ° C. W is 0.89, density is 0.917 g / cm
^{3. An} ethylene-1-octene copolymer having a melt flow rate of 2.3 g / 10 minutes (“Do, manufactured by Dow Chemical Co., Ltd.
wlex2047AC "). A-5 (for Comparative Example); copolymerized in the presence of a Ziegler-type catalyst, containing 4-methyl-1-pentene as an α-olefin, and having a TREF elution curve with a maximum peak temperature of 66 ° C, H / W 0.75, density 0.9
10 g / cm ³ , melt flow rate 2.0 g / 10
Ethylene-4-methyl-1-pentene copolymer (“Ult1020L” manufactured by Mitsui Chemicals, Inc.).

(B) Component B-1: an ethylene-vinyl acetate copolymer having a vinyl acetate unit content of 20% by weight and a melt flow rate of 2.5 g / 10 minutes as an acyl group-containing ethylenically unsaturated compound Combination (Novectech EVA LV5 manufactured by Nippon Polychem)
40 "). B-2: an ethylene-vinyl acetate copolymer (manufactured by Nippon Polychem Co., Ltd.) having a vinyl acetate unit content of 28% by weight as an acyl group-containing ethylenically unsaturated compound and a melt flow rate of 6.0 g / 10 min. Novatec EVA LV6
60 "). B-3; an ethylene-methyl methacrylate copolymer having a content of methyl methacrylate unit as an acyl group-containing ethylenically unsaturated compound of 18% by weight and a melt flow rate of 7.0 g / 10 minutes (Sumitomo Chemical Industries, Ltd.) “Aclift WH303”). B-4; an ethylene-methyl methacrylate copolymer having a content of methyl methacrylate unit as an acyl group-containing ethylenically unsaturated compound of 25% by weight and a melt flow rate of 7.0 g / 10 minutes (Sumitomo Chemical Industries, Ltd.) "Aclift WK307").

Examples 1 to 7 and Comparative Examples 1 to 9 The components (A) and (B) shown in Table 1 were mixed with a Henschel mixer, and then mixed with a twin-screw extruder (“K” manufactured by Kobe Steel, Ltd.).
Using TX40 "), the mixture was melt-kneaded at a cylinder temperature of 160 ° C and a screw rotation speed of 220 rpm for 1 minute, melt-extruded into strands, cooled and solidified, and cut to prepare resin composition pellets. For each of the obtained resin composition pellets, the content of the acyl group-containing ethylenically unsaturated compound unit in the composition was calculated from the blending ratio of the components (A) and (B), and the melt flow rate was calculated. The measurement was performed and the results are shown in Table 1.

Next, each of the obtained resin composition pellets was formed into a sheet having a thickness of 0.4 mm using a calender roll heated to 140 to 160 ° C., and a polyester plain woven fabric (750 denier fiber, number of punched fibers) was obtained. 20 × 2
(1 / inch, manufactured by Teijin Limited) was melt-laminated on both sides and cooled and solidified to produce a 0.75 mm thick tarpaulin. With respect to each of the obtained tarpaulins, flexibility, scratch resistance, and high-frequency weldability were measured and evaluated by the methods described below, and the results are shown in Table 1.

Width 30 mm, length 170 mm cut from flexible tarpaulin
The two ends of the strip-shaped test piece are sandwiched between two sets of chucks each having a width of 40 mm, and the test piece is bent and fixed so that the chuck interval becomes 60 mm. The ball was pressed at a speed of 60 mm / min with a pressing tool having an inverted conical head having a length of 40 mm and a length of 40 mm, and the maximum stress until the test piece buckled at that time was measured with a strain gauge.

A scratch-resistant tarpaulin was cut into a piece having a width of 90 mm and a length of 120 mm, and was folded in two at the center in the length direction and further at the center in the width direction to have a width of 45 mm and a length of 60 mm. A test piece was prepared using a paper file having a roughness of G40 (FUJI-TOM).
BO) was fixed with a jig so that the bent portion having a length of 60 mm was in contact with the paper file on the rotating disk on which the rotating disk was rotated 500 times at a rotation speed of 60 rpm. The scratch resistance was evaluated according to the following criteria. ；: The base fabric was not exposed, and the scratch resistance was good. X: The base fabric was exposed and the scratch resistance was poor.

High-frequency welder workability : width 30 mm, length 170 mm cut from tarpaulin
, Two strip-shaped test pieces are superposed on each other, and a high-frequency welder (manufactured by Yamamoto Vinita) is used. The width is 10 mm and the groove depth is 1 m.
A tarpaulin welded under the conditions of a frequency of 19 MHz and a welding time of 5 seconds using a mold of m
The peel strength at the time of T-shaped peeling was measured at a peeling speed of 200 mm / min in accordance with No. 4.

[0041]

[Table 1]

[0042]

[Table 2]

[0043]

According to the present invention, it is possible to provide a tarpaulin in which an ethylene-based polymer is laminated on a base fabric surface, which is excellent in flexibility and abrasion resistance and excellent in high-frequency weldability.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) D06M 15/263 D06M 15/263 15/333 15/333 F term (Reference) 4F100 AK62B AK62C AK68B AK68C AK70B AK70C AL05B AL05C BA03 BA06 BA10B BA10C DG12A DG13A GB07 GB32 JA06B JA06C JK09 JL01 JL05 4J002 BB05W BB06X BB07X BB08X GF00 4L033 AA07 AB05 AB06 AC02 AC15 CA12 CA18 CA28

Claims (4)

[Claims] A fibrous woven fabric as a base fabric, at least one surface of which contains the following components (A) and (B):
Component (A) accounts for at least 10% by weight, component (B) has an acyl group-containing ethylenically unsaturated compound unit content of 6 to 30% by weight, and a melt flow rate of 0.1 to 10%. A tarpaulin characterized in that a resin composition of 80 g / 10 min is laminated. (A) a temperature consisting of ethylene and an α-olefin having 3 to 18 carbon atoms, the temperature of the maximum peak in an elution curve obtained by temperature-rise elution fractionation being 10 to 80 ° C., and a width of 1/3 of the maximum peak ( Ethylene-α- having a ratio (H / W) of peak height (H) to W) of 2 or more and a melt flow rate of 0.1 to 100 g / 10 min.
Olefin copolymer (B) Composed of ethylene and an acyl group-containing ethylenically unsaturated compound and having a melt flow rate of 0.05 to 100.
g / 10 min ethylene-acyl group-containing ethylenically unsaturated compound copolymer 2. The tarpaulin according to claim 1, wherein the acyl group-containing ethylenically unsaturated compound in the component (B) is vinyl acetate or (meth) acrylic acid or an alkyl ester thereof. 3. The tarpaulin according to claim 1, wherein the content of the acyl group-containing ethylenically unsaturated compound unit in the component (B) is 7 to 50% by weight. 4. The resin composition comprising the component (A) and the component (B).
The component occupies 10 to 80% by weight of the component (A) and 90 to 20% by weight of the component (B) based on the total amount of the component (A) and the component (B). 3. The tarpaulin according to any one of 3.