JPS61268445A - Flexible vinyl chloride group resin tape for sheathing - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to the heat insulation of 4 tons of transportation pipes and towers and tanks for industrial water, clean water, drought water, cold water, steam, various refrigerants, industrial chemicals, etc. This invention relates to a soft polyvinyl chloride tape used as a protective decorative exterior for cold storage H and as an insulating coating for wires such as electric wires.

The soft polyvinyl chloride tape of the present invention can be used for decoration and protective sheathing of piping and towers and tanks, as well as for areas where the existing metal plate sheathing material has corroded or been damaged and has lost its function. It is also useful as a complementary action. The tape of the present invention is particularly effective for outdoor use.

[Prior Art] Conventionally, metal plates such as galvanized iron plates or colored steel plates with a thickness of 300 to 500 microns have been widely used for the exterior of heat insulating and cold insulating materials for piping, towers and tanks. Special skill in sheet metal processing is required for the exterior application T using these metal plates, but the shortage of sheet metal processing technicians is currently becoming a problem in the piping and blunting industries.

In addition, in the metal plate exterior, the seam connection between metal plates is
In general, HaI! The hanging IJT method is widely adopted, but in this T method, the edge of the metal plate that has been added to the shape of 1.
I-1 (I-1) was yelled at. Therefore, if the depth of the single-shaped groove or the engagement opening is insufficient, accidents often occur in which the plates become disconnected due to vibration, pars, or contraction of the piping or tower. In such a case, rainwater enters from the place where the hook has come off and wets the insulation material, causing a problem that the insulation effect is reduced. Furthermore, in factories near the coast or in factories in M or alkaline atmospheres, metals corrode quickly and the exterior repair lighting intensity is high. Although the surface coating of these metal plate exterior materials has been subjected to corrosion-resistant treatment, when scratches occur on the painted surface, or when the paint film falls off due to deterioration of the paint film, the metal surface may be directly exposed. When metal comes into contact with the atmosphere, corrosion progresses in a short period of time.

In addition, many of the methods for constructing the exterior of piping or towers and tanks involve work at high places, and it is strongly desired that the construction can be done easily by using special skills or shellfish. From this point of view, corrosion-resistant vinyl tape, electrical insulation tape, and cloth tape, which have excellent 7711 properties and corrosion resistance, are used for the same purpose as steel plate exterior materials. However, although exterior materials made of these polymer materials can be fully used as exterior materials for indoor piping in a mild environment, when used outdoors where environmental conditions are harsh such as direct sunlight, rain and wind, and high and low temperatures, Over a short period of time, for example, one to two years, the material deteriorates, peels, cracks, etc., and eventually breaks down naturally and loses its function as an exterior material.

[Problems to be Solved by the Invention] As described above, there are many problems that need to be solved with the conventional methods and materials for exterior construction of piping or towers and tanks. The purpose of the present invention is to provide a tape-like exterior material that has excellent durability and can withstand long-term outdoor use. Problems that arise when tapes or cloth tapes are used outdoors: 5. One point is to prevent the tape material from deteriorating due to ultraviolet rays or high temperatures in the summer, and to maintain its decorative properties and function as an exterior material with a long-term maintenance of 7g. There is a tape structure and a lunar stage 81 for holding.

The present inventors have investigated in detail why soft polyvinyl chloride tape, which has traditionally been widely used as a corrosion-resistant exterior tape for outdoor applications, deteriorates and loses functionality when used outdoors. As a result of the investigation, the following was found.

1) The plasticizer used is volatile, especially in the summer)
, about 60% or more of the plasticizer content is lost through volatilization, and fine pores are created inside the material, which easily causes material defects and stress concentration, which can lead to brittleness of the material (
(Phenomenon of becoming brittle) Breakage occurs.

2) When exposed to ultraviolet rays, the molecular peaks of the material decrease, elongate,
and induce a decrease in strength. In particular, a decrease in elongation means a decrease in the elasticity of the material, which is considered to be a cause of pitting failure.

Above, we have divided the causes of deterioration that occur when soft vinyl chloride tape is used outdoors into two factors, but in reality, these two factors occur synergistically, so it is important to note that when soft vinyl chloride tape is used outdoors, The causes of deterioration during use appear to be very complex. Therefore, in order to use soft PVC tape for long-term outdoor purposes without losing its functionality, it is necessary to check at least the above two factors that cause the deterioration of soft PVC tape at the same time. Needs to be resolved.

A possible solution to this problem is to use an interpolymer plasticizer to suppress the volatility of the plasticizer, and to add carbon black or titanium oxide to impart weather resistance. In this case, the decoration ↑1 (for example, silver coloring) required for the exterior of outdoor piping is lost. One possible way to maintain the decorative properties is to layer the former with a weather-resistant sheet containing decorative silt or carbon black, which contains a plasticizer between polymers and a tint. There is a winding and winding method, but if you simply wrap it in layers, the decorative layer will deteriorate due to long-term use, and the decorative layer will become loose due to a decrease in the adhesion, which is thought to be due to brittleness, and the occurrence of surface cracks in some areas. However, the weather-resistant layer tape wrapped underneath is exposed and the above problem cannot be solved. In addition, the overlapping method has the disadvantage that the decorative tape must be further wrapped on top of the B1 carbon black-containing H-arp resistant material, which requires 200,000,000 hours of work and is complicated. The present inventors have developed a binding material that has undergone extensive experimental research to obtain a pipe exterior material that does not cause such problems and is easy to work with, and has the long-term heat resistance and weather resistance required for outdoor use. In order to maintain this, it was discovered that these points could be solved by the following means, and the present invention was achieved.

A solution to problem E] That is, the solution is to add one or more low-volatility heat-resistant plasticizers selected from the following to 100 parts of a polyvinyl chloride resin with a degree of polymerization of 650 or more. 20 to 80 parts by weight of plasticizer containing 40% or more, if desired colorant and stabilizers commonly used in polyvinyl chloride resins, with a thickness from 50 microns. 1000 micron externally plasticized soft vinyl chloride resin Sea I-(1)
and polyvinyl chloride resin 100 with a degree of polymerization of 650 or more.
A commercially available plasticizer of any type O~80, a commonly used stabilizer, and at least 0.5% by weight of carbon black and/or titanium oxide, with a thickness of 50 microns. The present invention consists in bonding together internally or externally plasticized soft vinyl chloride resin sheets 1-(If) from 100 microns to 1,600 microns by thermal FIJ, and the thickness thus obtained is from 100 microns to 1,700 microns. This is a soft vinyl chloride resin tape for exterior use.

The vinyl chloride resin used for the sheet (I) may be a normal vinyl chloride polymer, a vinyl chloride copolymer, a copolymer with a carboxylic acid ester such as vinyl acetate, or an olefin copolymer such as ethylene. However, polymers with a vinyl chloride polymerization degree of 650 or higher (according to LJIS K6721) are particularly preferred in terms of tensile flexibility when formed into a molded product, and polymers with a polymerization degree of less than 650 are less effective in reducing ulcers. Unfavorable in some respects.

The low-volatility heat-resistant plasticizer added to the vinyl chloride resin constituting Seas 1 to (1) is a plasticizer containing at least 40% by weight of one or more plasticizers selected from the following group.

1) A saturated polyester plasticizer with a viscosity of 2500 cp/25°C or higher obtained by the polycondensation reaction of glycols and dicarboxylic acids, glycols, dicarboxylic acids, and fatty acids; ii) A saturated polyester plasticizer with a viscosity of 80 cp/25°C or higher. trimellitic acid ester, epoxidized fattening oil, epoxidized linseed oil, iii) epoxidized fat with a viscosity of 100Cr)/25°C or higher, 1r ster plasticizer, iv) phthalic acid type with a molecular weight of 4001s or higher, Detra Hydrophthal-resistant, adipic acid, and azelaic acid.

Sebacic acid type, citric acid type, phosphoric acid type plasticizer, V) Tetra-2-delhexylpyromellitate, Tetra-n-
Pyromellitic acid ester plasticizer of Okujirubi 0 mellitate, -10-vi) Dipentaerythritol, pentaerythritol ester plasticizer.

A material containing less than 40% by weight of the heat-resistant plasticizer is not preferable because, as mentioned above, material defects occur due to volatilization of the plasticizer and induce brittle fracture of the material. The plasticizer is added in an amount of 20 to 80 parts by weight per 100 parts by weight of the vinyl chloride resin. However, if the amount of plasticizer is less than 20 parts by weight, the softening effect of the material will be lost, and if it exceeds 80 parts by weight, is not preferable because it is inferior in material strength and workability. A particularly preferred range of plasticizer usage is 30 to 70 parts by weight. As a coloring agent that imparts decorative properties to the sheet (1), for example, aluminum powder is used to color the sheet (1) silver gray.

The type of vinyl chloride resin used for the sheet (TI) is not particularly limited. In addition to the resin used for the sheet (1) described above, an internally plasticized smoked vinyl resin can also be used. Examples of the internally plasticized soft vinyl chloride resin include (2) tyrene-vinyl esdel copolymer or a polymer obtained by grafting vinyl chloride onto polyurethane.

Alternatively, a blend of an ethylene-vinyl ester copolymer and a vinyl chloride resin or a blend of polyurethane and a vinyl chloride resin can also be used. Maiko,
The type of plasticizer used for plasticizing the vinyl chloride resin used in Seams 1 to (11) is not particularly limited. Of course, the above-mentioned low-volatility heat-resistant plasticizers may also be used. The amount of plasticizer used is different from that of sheet (I), but if the vinyl chloride resin is an internally plasticized polymer, the amount of plasticizer used can be reduced to zero or considerably reduced. The amount of carbon black and/or titanium oxide that imparts weather resistance to the sheet (IT) is 0.5% to 10% by weight, preferably 1% to 7% by weight.
It is used within the range of %. When the amount is less than 0.5% by weight, the effect of imparting weather resistance is lost. Furthermore, addition of more than 10% by weight does not lead to improvement in weather resistance. As the stabilizer, those normally used for vinyl chloride resins are selected and used within the range of normal use. Furthermore, sheet (I)
To the sheet (TI), for example, a bencyphenone-based, pencitriazole-based, sarinlate-based, sikoic acid anilide-based, hindered amine-based, formamidine-based ultraviolet absorber, light stabilizer, or antioxidant is added to the sheet (TI).
1) Improving the weather resistance, heat resistance or stability of the sheet (TI), and improving the surface tackiness by adding an inorganic filler such as rhusium carbonate, and antimony trioxide and/or zinc borate, etc. It is also possible to impart flame retardant properties by adding a flame retardant or a flame retardant aid, or to impart pressure sensitive adhesive properties by applying a pressure sensitive adhesive to the back surface of the sheet (TI). The thickness of the sheet (I) is 50 to 1000 microns, and the thickness of the sheet (TI) is 50 to 1600 microns. In the present invention, sheet (I) and sheet (IF) thus obtained are thermally fused to form an integral sheet having a thickness of 100 to 1,700 microns. This is not desirable because it impairs the workability.

The integrated sheet (I) and sheet (TI) are cut into a tape shape to a width appropriate for the object to be coated and the work, and then piped or piped so that the decorative layers (sea I to (I)) are on the outside. For example, it is used by winding it in a spiral shape around a column or wire.

[Effects of the Invention 1-10] As explained above, a tape can be obtained which has the three characteristics of decorativeness, heat resistance and weather resistance, and also has extremely good workability.

[Example 1 The present invention will be further explained in the following examples.

(Reference example) Using 65 parts by weight of a polyester-based high molecular weight plasticizer with a viscosity of 6,500 centipoise at 25°C per 100 parts of vinyl chloride resin, and using aluminum powder as a coloring agent, a thickness of 200 centipoise was used. A micron decorative soft vinyl chloride sheet was created. In addition to this, carbon black 3% by weight
By adding 40 parts by weight of plasticizer (OOP) and 25 parts by weight of the polyester plasticizer, a thickness of 300 mm with weather resistance was added.
A micron soft vinyl chloride sheet is made, this carbon black-containing sheet is spirally wound into a cylindrical shape with a diameter of 8 ctrt, and the silver-colored soft vinyl chloride tape is placed on top of it. I wrapped it in a shape. (Hereinafter referred to as overlapping wrapping) On the other hand, the decorative soft vinyl chloride sheet I~ with a thickness of 200 microns and the above-mentioned 30 micron thick
A multi-layer soft vinyl chloride sheet with a thickness of 500 microns made by tightly bonding together a soft vinyl chloride sheet 1- containing 3% carbon black of 0 microns by heat fusion]
Decorate ~ with one layer of silver J: sea urchin diameter 8 ct
It was wrapped around the cylinder of tr. (Hereafter, it will come true as multi-layered - multi-layered)
When both of these were irradiated for 2,000 hours with a black panel temperature of 63°C using a satsushi 11-inch meter, the decorative parts of the overlapping wraps deteriorated, and the elasticity decreased and some surface cracks appeared due to the brazing. The outbreak loosened the decorative layer, exposing the black weather-resistant tape wrapped underneath. In this case, the soft vinyl chloride layer mixed with carbon black was loosened, had no cracks, and maintained its elasticity.

On the other hand, when a multi-layered double-wrap was subjected to Test 1 under the same test conditions, some discoloration and fine cracks were found in the decorative layer on the UV irradiated surface, but there was some discoloration and fine cracks from the weather-resistant tape containing carbon black in the lower layer. (Yes, I didn't see any falling off, and there was no problem with the adhesion to the cylinder. Also, JIII
Since only one winding is required, the workability is doubled compared to l'lrr1.

In the above experiments, the influence of violet IA ray deterioration was mainly investigated for both overlapping winding and multi-layer overlapping winding, and next, heat resistance was investigated. Instead of polyester plasticizer
7. ' 2-Ethylhexyl phthalate (r) OP
) to 100 parts of resin @ hanging part, add 50 parts and 01 parts,
A small amount of aluminum powder was added as a coloring agent to prepare soft vinyl chloride sheets 1 to 200 microns thick. Thickness 2 with equal ml of polyester plasticizer added
A soft tape with a diameter of 0.00 microns was prepared and the plasticizer content was measured after 240 hours of gastric feeding at a temperature of 121°C.DO
While the plasticizer content (ml) of the sheet using P decreased by about 40%, the weight loss of the sheet containing a high molecular weight polyester plasticizer was only about 2.3 weight at most.

(Example 1) A commercially available polyester plasticizer (trade name: Adekasizer PN280j) was added to 100 parts by weight of commercially available polyjB vinyl (polymerization degree 1,300) at 25° C. 70 parts by weight, 3 parts by weight of barium-zinc stabilizer, 3 parts by weight of epoxidized soybean oil, 0.1 part by weight of ultraviolet absorber, 3 parts by weight of antimony trioxide, 0.0 parts by weight of antimony trioxide.
A 200 micron thick sheet made by adding 3 parts by weight of aluminum powder to a soft vinyl chloride formulation containing 5 parts by weight (■)
A sheet with a thickness of 350 microns (II
) was molded by calendering, and the two sheets were closely laminated by thermal lamination to obtain a silver/black two-layer laminate sheet with a thickness of 500 microns.

This sheet was tested using a weathering tester (WE- manufactured by Suga Test Instruments).
3UN-D, CA type) 1 no, black panel warm stone 6
Irradiation was carried out for 1000 hours at 3±3° C. and sample spray for 120 minutes and 18 minutes, with the silver layer being the irradiated surface.

After irradiation, a tensile test was conducted according to JIS K6723, and the residual elongation rate, which indicates the degree of embrittlement and deterioration, was measured and found to be 93%. Here, the residual elongation rate is the ratio of the elongation after irradiation to the elongation before irradiation. In the following Examples and Comparative Examples, the degree of embrittlement and deterioration is expressed in terms of residual elongation.

(Comparative Example 1) A silver-colored single-layer sheet with a thickness of 500 microns was prepared by calendering using only the formulation in Example 1 with the addition of aluminum powder, and a weather resistance test was conducted in the same manner as in Example 1.

The residual elongation rate after 1000 hours of irradiation was 65%.

(Example 2) Commercially available ethylene-vinyl chloride copolymer resin (degree of polymerization 150
0, ethylene content 1.5%), commercially available polyester plasticizer (trade name [Adekasizer PN2
50J), 50 parts θ, 10 parts ffi trimellitic acid octyl ester, 2.5 parts Kumu zinc stabilizer
A soft vinyl chloride formulation containing heavy parts and 0.5 parts by weight of lubricant, aluminum powder type 3 ω part, and 0.1r ultraviolet absorber.
A sheet with a thickness of 250 microns with the li part added and a sheet with a thickness of 300 microns with the same composition but with carbon black 2ΦV% added instead of aluminum powder were formed by calendering, and these two sheets were tightly laminated using a thermal lamination method. A two-layer laminated sheet with a repulsion of 500 microns was obtained.

This sheet was subjected to a weather resistance test in the same manner as in the examples.

The residual elongation rate after 1000 hours of irradiation was 92%.

(Example 3) To 100 parts by weight of commercially available polyvinyl chloride (degree of polymerization 1000), 35 parts by weight of commercially available poly 1 Nisder plasticizer (Adekarizer PN280), 25 parts by weight of DOP, and 3 parts by weight of barium-zinc stabilizer. , epoxy resin quadruple part, ultraviolet absorber 0.2 parts by weight, antiseptane trioxide 3 parts by weight,
A sheet with a thickness of 200 microns was formed by calendering using a soft vinyl chloride formulation containing 0.5 parts by weight of a lubricant and aluminum powder Type 3. Also, polyvinyl chloride (
DOP 4 for polymerization 1 to 1000) 1 (') 0 parts by weight
5 parts, 3 parts by weight of barium-ol-zinc stabilizer - 3 parts by weight of poxidized large Ω oil, 3 parts by weight of antitin trioxide, lubricant (1 part)
A sheet of 300 microns thick was molded by calendering 1-, using a soft vinyl chloride formulation containing 5 parts by weight of rice-brewed titanium (market weight).

These two types of sheets were closely laminated on thermal laminate 1 to obtain a silver/tenon 182-layer laminated sheet with a thickness of 150 microns.

This material was heated at 100° C. for 27 IO hours, and then subjected to weathering test ↑11 in the same manner as in Example 1.

The residual elongation rate after 1 oon trt 1) J was 98%l.

(Comparative Example 2) For 100 parts by weight of commercially available polychloride 1''nyl (degree of polymerization 1000), [10P6n parts by weight, 1 cum of flash, 3 small parts of curved lead stabilizer, and 0.1 part of ultraviolet absorber. 2 parts by weight of polyvinyl chloride soft formulation containing 3 parts by weight, 1 part by weight of antimony trioxide plus 2 parts by weight of aluminum powder, and a thickness of 350 microns by adding 3 parts by weight of carbon black in place of the aluminum powder. A micron sheet was formed by calendering, and the two types of sheets were laminated using a thermal lamination method to obtain a silver/black two-layer laminated sheet 1- with a thickness of 500 microns.

After this sheet was heated at a temperature of 100° C. for 240 hours, a weather resistance test was conducted in the same manner as in Example 1.

The residual elongation rate after 1000 hours of irradiation was 30%.
Met.

(Comparative Example 3) A silver-colored single-layer sheet with a thickness of 500 micrometers was prepared by calendering using only the formulation in which aluminum powder was added in Comparative Example 2, and a weather resistance test was conducted in the same manner as in Example 1. .

The residual elongation rate after 1000 hours of irradiation was 43%.

(Example 4) Commercially available polyvinyl chloride (polymerization 11000) 100 fM
polyester iT plasticizer (ADEKASIZER PN280)
), 2.5 parts by weight of barium-zinc stabilizer, 3 parts by weight of epoxy soybean oil, 0.1 part by weight of ultraviolet absorber, 3 parts by weight of antimony trioxide, and 3 parts by weight of aluminum powder. A 250 micron sheet containing 200 μm thick [1 ml] and 3 wt. A silver/black laminated sheet having a thickness of 400 microns was obtained by laminating the silver/black laminated sheet.

This sheet was heated at 21° C. for 168 hours, and the weight loss after heating was measured to be 2%.

The residual elongation rate of this Sea I- after heat treatment was measured and found to be 98%.

(Example 5) Polyester plasticizer (PN28
A silver/black two-layer laminate sheet having a thickness of 400 microns was prepared by carrying out the same processing as in Example 4 except that Trimeriz 1 (Adekalizer C-8) was used instead of Trimeriz 1 (Adekarizer C-8). This sheet was heat treated in the same manner as in Example 4, and the weight loss percentage after heating was measured, and it was 1%.

The residual elongation of this sheet after heat treatment under the same conditions as in Example 4 was measured and found to be 97%.

(Comparative Example 4) Among the formulations of Example 4, polyester plasticizer (PN28
0) 70 parts by weight of DOP 50 parts by weight n parts Example 4
A silver/black two-layer laminate sheet having a thickness of 40 microns was prepared by carrying out the same process as described above.

This sheet was subjected to the same heat treatment as in Example 4, and the weight loss percentage after heating was measured and found to be 30%.

The residual elongation rate of this sheet after heat treatment was measured and was 0.
%Met.

(Example 6) Commercially available polyvinyl chloride (polymerization 1'fl 300) 50% by weight and ethylene/vinyl chloride copolymer resin (polymerization degree 150)
0. y-tyrene content, 1.5% by weight) blend with 50% by weight polynisder plasticizer (ADEKA 4) - Iser PN280 > 500% by weight, r) OPIO heavy part, barium-lead system A soft vinyl chloride formulation containing 3 parts by weight of stabilizer and 3 parts by weight of antimony trioxide was added with 3 parts of aluminum powder to a thickness of 250 μm [1 inch sheet and 5% by weight of carbon black was added in place of the aluminum powder. A sheet with a thickness of 300 microns was prepared by calendering, and both sheets were laminated tightly using a heat laminator to prepare a silver/black two-layer laminated sheet 1~ with a thickness of 500 microns.

Cut this sheet 1- into a tape shape with a width of 10CI11,
A calcium silicate molded heat insulator was wrapped around the outer circumference of an outdoor pipe rack-shaped steam pipe and fixed with wire, and this exterior (approximately 150 m in diameter) was covered with tape.
Wrap the layered exterior material tightly with the silver layer on the outside in a manner similar to wrapping a bandage to a width of about 2 cm, and join the ends with double-sided adhesive tape, then cover with a band-shaped metal fitting from above. I attached it and fixed it. After 2 years of aging, the condition of the exterior was examined, and although the surface was slightly dirty and blackish, there were no cracks or cuts, and it was in roughly usable IR-capable condition.

Cut out Sea 1 after 2 years of use and measure the tensile properties 24
When stabilized, both tensile strength and elongation showed a retention rate of 95%.

(Comparative Example 5) A comparison was made by wrapping the same exterior as in Example 7 using a commercially available corrosion-resistant soft polyhinyl chloride tape in the same manner as in Example 7.

After two years, the corrosion-resistant tape began to crack and break from the upper surface, making it unusable.

(Example 7) Commercially available polyvinyl chloride (degree of polymerization 1000) 100 weight, dipentaerythritol ester plasticizer Adekasizer UL-6) 55 parts by weight, DOPIO parts by weight, barium-111i lead stabilizer 2.5 parts by weight parts by weight, ■ 3ff1Mi part of poxy soybean oil, 0.1 part by weight of ultraviolet absorber (Tenuvin P), 200 micron thick sheet (I) containing a triple layer of aluminum powder, and 3% by weight of carbon black in place of the aluminum powder. Thickness 3 of the same composition as sheet (I) containing
A sheet (II) with a thickness of 0.00 microns was prepared by a calendering method, and sheets (T) and (II) were laminated by a thermal lamination method to obtain a silver/black laminated sheet with a thickness of 500 microns. When this laminated sheet was tested under the same conditions as in Example 4, the weight reduction rate was 2.7%. Further, the residual elongation rate after the heat treatment was 92%.

(Example 8) The sheet (T) with a thickness of 200 microns described in Example 1 and the tyrene-vinyl acetate copolymer (F
VA) Vinyl chloride-IE V A graft copolymer containing 53% by weight (average degree of polymerization of the vinyl chloride part 800) 100% by weight barium-4F lead stabilizer 2.5 parts by weight, 3 parts by weight of poxy soybean oil and a sheet (II) having a thickness of 300 microns containing 3% by weight of carbon black.
500 micron thick silver 719
A 99Ml sheet was obtained. When this laminated sheet was tested under the same test conditions as Example 1, the residual elongation rate was 94%.

Claims (1)

[Claims] (1) Polyvinyl chloride resin 10 with a degree of polymerization of 650 or more
0 parts by weight, 20 to 80 parts by weight of a plasticizer containing at least 40% by weight of one or more low-volatility heat-resistant plasticizers selected from the following, a coloring agent, and a stabilizer commonly used for polyvinyl chloride resins. An externally plasticized soft vinyl chloride resin sheet (I) with a thickness of 50 to 1000 microns and 100 parts by weight of a polyvinyl chloride resin with a degree of polymerization of 650 or more, with any type of plasticizer added Agent 0-8
0 parts by weight, with the addition of stabilizers commonly used in polyvinyl chloride resins and at least 0.5% by weight of carbon black and/or titanium oxide, internally or externally plasticized with a thickness of 50 microns to 1600 microns. A soft vinyl chloride resin tape for exterior use with a thickness of 100 to 1700 microns, which is made by bonding soft vinyl chloride resin sheets (II) together by heat fusion. i) A saturated polyester plasticizer with a viscosity of 250 cp/25°C or higher, ii) Trimellitic acid ester, epoxidized soybean oil, or epoxidized linseed oil with a viscosity of 80 cp/25°C or higher, iii) A viscosity of 100 cp/25°C iv) Phthalic acid-based, tetrahydrophthalic acid-based, adipic acid-based, azelaic acid-based, sebacic acid-based, citric acid-based, phosphoric acid-based plasticizers with a molecular weight of 400 or more; v) Tetra-2-
pyromellitic acid ester plasticizers such as ethylhexylpyromellitate and tetra-n-octylpyromellitate; vi) dipentaerythritol and pentaerythritol ester plasticizers.