KR20100107943A - Sidewalk block using waste synthetic resins and method for manufacturing the same - Google Patents

Sidewalk block using waste synthetic resins and method for manufacturing the same Download PDF

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Publication number
KR20100107943A
KR20100107943A KR1020090026321A KR20090026321A KR20100107943A KR 20100107943 A KR20100107943 A KR 20100107943A KR 1020090026321 A KR1020090026321 A KR 1020090026321A KR 20090026321 A KR20090026321 A KR 20090026321A KR 20100107943 A KR20100107943 A KR 20100107943A
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South Korea
Prior art keywords
waste synthetic
synthetic resin
block
resin
manufacturing
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KR1020090026321A
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Korean (ko)
Inventor
박용우
엄용석
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주식회사 월드테크
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Priority to KR1020090026321A priority Critical patent/KR20100107943A/en
Publication of KR20100107943A publication Critical patent/KR20100107943A/en

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C15/00—Pavings specially adapted for footpaths, sidewalks or cycle tracks

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

PURPOSE: A sidewalk block using waste synthetic resins and a manufacturing method thereof are provided to maintain an original form for a long time by improving durability and abrasion-resistance. CONSTITUTION: A manufacturing method of a sidewalk block using waste synthetic resins is as follows. Residual impurities are selected from waste synthetic resins(S10). The selected synthetic resins are crashed into a 2~4cm size(S20). The crashed waste synthetic resins are grinded into a 0.5~1mm size using a grinder(S30). Non-crashed waste synthetic resins are dried using hot air(S40).

Description

Sidewalk block using waste synthetic resins and method for manufacturing the same

The present invention relates to a sidewalk block using a waste synthetic resin and a method for manufacturing the same, and more particularly, by using a mixture of waste synthetic resin, absorbent resin, glass powder, and filler to improve durability and wear resistance, and at the same time prevent slipping from moisture. At the same time, it ensures the safety of pedestrians by securing elasticity, and also maintains the original shape for a long time and promotes the convenience of construction and repair along with the construction of the sidewalk block using waste synthetic resin to maximize the recycling of waste resources. And it relates to a manufacturing method thereof.

Synthetic resins are commonly called plastics. They are light, easy to process, and easy to rot. They are widely used as basic materials for industrial and household goods. Doing.

However, even after decades of use, it does not decompose even after decades, and it is bulky, inconvenient to handle and prominent, so that proper treatment of waste synthetic resins is emerging as a social problem.

There are three methods for treating such waste synthetic resins: landfill, incineration, and recycling.

Landfill is not suitable because the waste synthetic resin is a material that does not decay well, inevitably incinerated or recycled through separate collection. However, incineration is a simple method that can utilize thermal efficiency, but it requires a lot of facility investment costs, and causes air pollution by generating harmful gases such as dioxin.

Meanwhile, the recycling method is a method of producing raw materials of low grade recycled plastics by simple physical treatment of collecting and sorting waste synthetic resin, and then washing, crushing and reducing the compression, and using a catalyst after simple physical treatment such as washing. There is a method of producing fuel oil such as diesel by recovering the original raw material (monomer) from the waste synthetic resin by chemical reaction or pyrolyzing at high temperature.

Therefore, products such as polyethylene, vinyl, acrylic, etc. are recycled into tapes, films, beverage boxes, office supplies, insulating materials, and parts of electrical appliances, and plastic items such as plastic beverage bottles, milk bottles, water bottles, and toys are recycled and reused. New plastic objects are made available.

However, due to the limited investment in facilities for recycling or the use of recycled products, the economic benefits are less than the use of new materials.

In addition, waste tires are rapidly increasing as by-products due to the rapid development of the automobile industry, and their treatment is emerging as a problem to be solved promptly in terms of efficient recycling of resources and environmental conservation.

Such waste tires also have a large amount of emissions per year, and are made of synthetic rubber made of high-quality materials rich in calories. Unlike other wastes, the collection and sorting process is not necessary, so the value of recycling tires is very valuable as a recycling business. In Korea, due to constraints such as economic feasibility and marketability, recycling facilities are only a few, and there are problems that are deepened into social problems.

An object of the present invention for solving the problems according to the prior art, by using a mixture of waste synthetic resin, absorbent resin, glass powder, filler to improve the durability and wear resistance, and at the same time to prevent the slip from moisture to ensure the elasticity It not only guarantees the safety of pedestrians, but also maintains the original shape for a long time and provides the convenience of construction and repair along with the construction of the sidewalk block and the manufacturing method using waste synthetic resin to maximize the recycling of waste resources. Is in.

In the method for producing a sidewalk block using the waste synthetic resin of the present invention for solving the above technical problem, in the method for producing a sidewalk block using the waste synthetic resin, the first step (S10) for selecting each of the impurities remaining in the waste synthetic resin ; A second step (S20) of crushing the selected waste synthetic resin into a size of 2 to 4 cm using a crusher; A third step (S30) of finely crushing the crushed waste synthetic resin into a size of 0.5 ~ 1mm using a grinder; A fourth step (S40) of drying the finely ground waste synthetic resin using hot air; A fifth step of mixing 5-40 parts by weight of glass powder, 10-20 parts by weight of absorbent resin, 10-20 parts by weight of filler, and mixing by using a stirrer to obtain 20 to 40 parts by weight of the dried waste synthetic resin powder (S50) ); And a sixth step (S60) of forming a sidewalk block by supplying the mixture resin obtained by melting the mixture to an injection apparatus.

Preferably, the waste synthetic resin is characterized in that it comprises at least any one of polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET).

Preferably, the glass powder is characterized in that formed in a lattice shape.

Preferably, the absorbent resin is silica gel, calcium chloride (CaCl 2 XH 2 O), and at least one of sodium polyacrylate.

Preferably, the filler is characterized in that it comprises at least one of inorganic matter, carbon black, clay, iron oxide, calcium carbohydrate, talc, mica.

Preferably, the injection device includes an upper mold provided with a plurality of injection holes penetrating the upper and lower surfaces, the lower mold provided in the lower portion of the upper mold to form a closed space in close contact with or separated from the lower surface of the upper mold. An injection apparatus, comprising: a ball block mounted on an upper surface of the upper mold; Sprue bushing is provided on the upper surface of the water supply block for receiving molten resin from the outside; Contact nozzles provided on the bottom surface of the water flow block so as to correspond to the positions of the respective injection holes to inject molten resin provided through the sprue bushings into the injection holes; And a micro block assembly inserted into one side of the upper mold to control a molten state of the molten resin filled in each injection hole.

Preferably, the contact nozzle may include: contact holes respectively formed on the bottom surface of the ball block to communicate with each of the plurality of injection holes of the upper mold; A nozzle tip formed through the molten resin and having a cross section having a “U” shape and assembled to the contact hole; And a contact bush provided inside the nozzle tip to adjust a flow rate of the molten resin.

Preferably, a concave groove communicating with the micro holes and a horizontal surface extending from the outer circumference of the concave groove to an inner wall surface of the nozzle tip are formed, and the contact bush is a horizontal disk contacting the horizontal surface, the concave groove. And a plurality of disc holes formed in the horizontal disc so as to communicate with each other, opening and closing bars extending downward from the center of the bottom surface of the horizontal disc and positioned in the micro holes.

Preferably, the center of the upper surface of the horizontal disk is characterized in that the conical projection extending upwardly formed.

Preferably, the top of the opening and closing rod is characterized in that the inclined portion is formed so that the cross-sectional area is wider toward the center of the lower surface of the horizontal disk.

The sidewalk block using the waste synthetic resin of the present invention for solving the above technical problem is manufactured by the method as described above, a plurality of drainage grooves are formed toward the rim at the center of the upper surface of the sidewalk block.

As described above, the present invention improves durability and wear resistance by mixing waste synthetic resins, absorbent resins, glass powders, and fillers, and at the same time, prevents slipping from moisture and ensures elasticity, thereby ensuring pedestrian safety. In addition, the recycling of waste resources can be maximized by maintaining the original shape for a long time and promoting the convenience of construction and repair.

In addition, there is an advantage that can reduce the facility cost required for recycling by recycling the waste synthetic resin only by simple melting.

On the other hand, it can be produced at a low cost, and there is an advantage that the effect of the hot runner mold can be obtained.

In addition, there is no runner, there is an advantage that can reduce the molding time, mold processing, synthetic resin, the consumption of the composite material. That is, in contrast to the general hot runner method, the method without the runner as in the present invention may not only reduce the manufacturing cost of the mold but also reduce the manufacturing cost of the sprue runner.

The invention will become more apparent through the preferred embodiments described below with reference to the accompanying drawings. Hereinafter will be described in detail to enable those skilled in the art to easily understand and reproduce through embodiments of the present invention.

Method for producing a sidewalk block using waste synthetic resin according to an embodiment of the present invention, is made by the following process.

A first step of selecting each of impurities remaining in the waste synthetic resin ( S10 );

Waste bumpers, waste wires, and waste plastics that are discarded around our lives are collected, and impurities are completely selected from the waste synthetic resins collected. At this time, residual impurities (eg, pieces of iron, nails, bolts, nuts, etc.) are sorted by hand (visually) or by magnets.

The selected waste synthetic resin using a crusher 2 to 4 cm  Second process of crushing to size ( S20 );

The waste synthetic resin selected by the step (S10) is subjected to a step (S20) of crushing to a size of 2 to 4cm using a crusher. Waste synthetic resins from which impurities are removed through the first step (S10) and the sorting process are introduced using a crusher (not shown), and then crushed into 2 to 4 cm size, preferably 3 cm size.

0.5 to 1 using the shredded waste synthetic resin crusher mm  Third process of pulverizing to size S30 );

The waste synthetic resin crushed by the step (S20) is subjected to a step (S30) of finely pulverizing to a size of 0.5 to 1mm using a crusher. The finely pulverized waste synthetic resin once again crushed through the second step (S20) and the crushing step, which is pulverized to a particle size of approximately 0.5 to 1 mm, respectively, using a grinder (not shown) to form a powder form do.

A fourth step of drying the finely ground waste synthetic resin using hot air ( S40 );

The waste synthetic resin powder pulverized by the step (S30) is subjected to a step (S40) of drying by using a hot air blower for about 15 minutes at a suitable temperature. The waste synthetic resin powder, which has undergone the third step (S30) and the crushing step, is introduced into a hot air blower and dried. That is, the waste synthetic resin powder is completely removed by using the hot air of the hot air blower, which is to dry the waste synthetic resin powder with hot air in a hot air at a suitable temperature, preferably 40 ° C. for about 15 minutes to completely remove the water. . At this time, if necessary, a method of removing moisture with a heater having a heater instead of a hot air blower may be possible.

The dried waste synthetic resin powder 20 ~ 40 parts by weight  Glass Powder 5 ~ 40 parts by weight Absorbent resin 10 ~ 20 parts by weight , Filler 10 ~ 20 parts by weight  5th step of mixing and mixing using a stirrer to obtain a mixture ( S50 );

20-40 parts by weight of the waste synthetic resin powder dried by the step (S40), 5 to 40 parts by weight of glass powder, 10 to 20 parts by weight of absorbent resin, and 10 to 20 parts by weight of filler are mixed and mixed using a stirrer. The process (S50) is obtained. Different raw materials are mixed and mixed in the waste synthetic resin powder which has passed through the fourth step (S40) and the drying step. It is composed of 20-40 parts by weight of waste resin powder (preferably 30 parts by weight), 5-40 parts by weight of glass powder (preferably 20 parts by weight), and 10-20 parts by weight of absorbent resin (preferably 15 parts by weight). And 10 to 20 parts by weight of the filler (preferably 15 parts by weight) are added to a stirrer and mixed evenly to stir sufficiently so that there is no solid.

Here, the waste synthetic resin comprises at least one of polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET). For example, the waste synthetic resin is a thermoplastic resin series.

On the other hand, the glass powder has a star shape, a sphere shape, a grid shape, etc. Among them, the strength of the reinforcement and easy to use the low-cost lattice-shaped glass powder can reduce the production cost.

In addition, the absorbent resin is silica gel (silica gel), calcium chloride (CaCl 2 XH 2 O), and at least one of sodium polyacrylate.

Preferably, the filler is characterized in that it comprises at least one of inorganic matter, carbon black, clay, iron oxide, calcium carbohydrate, talc, mica.

Obtained by melting the mixture Mixture resin  The sixth process of forming the sidewalk block by supplying to the injection device ( S60 );

Injection molding is carried out using an injection apparatus which will be described later by mixing the mixture resin obtained by melting the mixture mixed in the step (S60).

2 to 5, the upper mold 100 having a plurality of injection holes 100h penetrating the upper and lower surfaces, as shown in FIGS. 2 to 5, is provided below the upper mold 100 and the upper mold ( An injection apparatus including a lower mold 200 to form a closed space in close contact with or separated from a bottom surface of the 100, and includes a mini block assembly 300 mounted on an upper portion of the upper mold 100.

The upper mold 100 and the lower mold 200 is a part for molding an injection product, that is, a press block, the upper mold 100 of the present embodiment molds the upper surface portion of the press block, the lower mold 200 Form the side and bottom portions of the sidewalk block.

Since the upper mold 100 and the lower mold 200 can be used by selectively selecting a known mold structure, a detailed description thereof will be omitted, and the mini block assembly 300 will be described.

The mini block assembly 300 includes a ball block 310, a sprue bushing 320, a contact nozzle 330, and a micro heater 340.

The ball block 310 is a component mounted on the upper surface of the upper mold 100, as shown in Figure 6, is formed in the shape of a rectangular parallelepiped, a rectangular formed on the upper surface of the upper mold 100 The groove is inserted into the groove. At this time, the injection hole (100h) of the upper mold 100 is formed on the bottom surface of the groove portion.

Meanwhile, as shown in FIGS. 7 and 8, a contact nozzle 330 is provided on the bottom surface of the water flow block 310 to correspond to the position at which the injection hole 100h is formed, and the water flow block 310 is formed. The upper surface of the) is provided with a sprue bushing 320 (sprue bushing) for receiving the mixture resin.

Therefore, after the mixture resin provided to the sprue bushing 320 is filled in the tap block 310, the upper mold 100 and the lower portion through the injection hole 100h of the upper mold 100 through the container nozzle. It is injected into the closed space by the mold 200.

On the other hand, the inside of one side of the upper mold 100 is a micro heater 340, the micro heater 340 is to adjust the temperature of the mixture resin is filled in the injection hole (100h) of the upper mold (100) By controlling the melt state of the mixture resin. The micro heater 340 may be embedded in one side of the upper mold 100 as the micro heater 340 is inserted into and inserted into a plurality of holes formed in the groove side of the upper mold 100, respectively.

In the miniblock assembly 300 configured as described above, the contact nozzle 330 will be described in detail.

The contact nozzle 330 includes a contact hole 331, a nozzle tip 333, and a contact bush 335, and the contact hole 331 includes a plurality of injection holes of the upper mold 100. 100h) are respectively formed in the lower surface of the water flow block 310 so as to communicate with each other, the nozzle tip 333 is formed with a micro hole 333h passing through the mixture resin, the cross section is formed in a "U" shape And a portion assembled to the contact hole 331, and the contact bush 335 is provided inside the nozzle tip 333 to adjust the flow rate of the mixture resin.

In detail, as shown in FIG. 8, the contact hole 331 is formed with a stepped surface on the bottom surface of the ball block 310 corresponding to each injection hole 100h of the upper mold 100. The nozzle tip 333 is assembled with the contact hole 331 in a bolt-nut manner so as to be inserted to cover the step of the contact hole 331.

At this time, the nozzle tip 333 is formed in a U-shaped cross section, and formed on the inner bottom surface of the concave groove 333a communicating with the micro holes 333h and at the outer circumference of the concave groove 333a. A horizontal plane 333b extending to the inner wall surface of the nozzle tip 333 is formed.

On the other hand, as shown in Figure 10, provided in the inside of the nozzle tip 333, the contact bush 335 for adjusting the flow rate of the mixture resin is in contact with the horizontal surface (333b) of the nozzle tip 333 Discs 335a, a plurality of disc holes 335h formed in the horizontal disc 335a so as to communicate with the concave groove 333a of the nozzle tip 333 extends downward from the center of the lower surface of the horizontal disc 335a It is composed of an opening and closing rod (335b) located in the fine hole (333h).

Therefore, when the contact bush 335 rises from the inside of the nozzle tip 333, as shown in Figure 9, the mixture resin through the upper hole (333h) of the fine hole (333h) of the nozzle tip (333) It may be injected into the injection hole (100h) of the 100.

In addition, a conical protrusion 335c extending upward is formed at the center of the upper surface of the horizontal disk 335a to guide the mixture resin to flow into the disk hole 335h, and the upper portion of the opening and closing rod 335b. It is preferable that the inclined portion is formed to widen the cross-sectional area toward the center of the lower surface of the horizontal disk (335a).

The operation of the injection apparatus configured as described above is as follows.

First, through the sprue bushing 320 to allow the mixture resin to be provided to the water block (310). The concave groove 333a of the nozzle tip 333 is provided through the disc groove of the contact bush 335 by the pressure of the mixture resin provided through the sprue bushing 320. It is gradually supplied to the, thereby increasing the internal pressure of the recessed groove (333a) portion is the contact bush 335 rises upward.

Next, the mixture resin is continuously supplied through the sprue bushing 320 in the state in which the contact bush 335 rises upward as described above, and is sealed by the upper mold 100 and the lower mold 200. When the mixture resin is completely filled in the space, the supply of the mixture resin provided through the sprue bushing 320 is cut off.

As described above, when the supply of the mixture resin is interrupted, the contact bush 335 gradually sinks downward due to its own weight, and the horizontal disk 335a of the contact bush 335 is the horizontal surface 333b of the nozzle tip 333. ). When the horizontal disk 335a of the contact bush 335 abuts on the horizontal surface 333b of the nozzle tip 333, the opening / closing rod 335b of the contact bush 335 is a fine hole 333h of the nozzle tip 333. ), The supply of the mixture resin may be cut off.

Next, when the mixture resin filled in the upper mold 100 and the lower mold 200 is cooled to complete the molding of the product, the lower mold 200 is separated from the upper mold 100 to remove the product, and then the upper mold is again. Close the 100 and the lower mold 200 to form a closed space.

At this time, some solidified mixture resin remains in the injection hole (100h) of the upper mold 100, the micro heater 340 is operated to melt the solidified mixture resin in this way. That is, the heat generated by operating the micro heater 340 is to bring the solidified mixture resin into a molten state again.

Next, when the mixture resin solidified in the injection hole (100h) of the upper mold 100 is melted so that the molten mixture resin is provided to the water flow block 310 through the sprue bushing 320, the upper mold The molten mixture resin is supplied to the closed space of the 100 and the lower mold 200.

Although the present invention has been described with reference to the preferred embodiments thereof with reference to the accompanying drawings, it will be apparent to those skilled in the art that many other obvious modifications can be made therein without departing from the scope of the invention. Accordingly, the scope of the present invention should be interpreted by the appended claims to cover many such variations.

1 is a flow chart showing a manufacturing process of the sidewalk block using the waste synthetic resin according to an embodiment of the present invention.

Figure 2 is a first exploded perspective view showing an injection device used in the injection process of the manufacturing process of the sidewalk block using the waste synthetic resin according to an embodiment of the present invention.

Figure 3 is a first exploded perspective view showing an injection device used in the injection process of the manufacturing process of the sidewalk block using the waste synthetic resin according to an embodiment of the present invention.

Figure 4 is a second exploded perspective view showing an injection device used in the injection process of the manufacturing process of the sidewalk block using the waste synthetic resin according to an embodiment of the present invention.

Figure 5 is a front view showing the injection device used in the injection process of the manufacturing process of the sidewalk block using the waste synthetic resin according to an embodiment of the present invention.

Figure 6 is a perspective view showing a mini-block assembly of the injection apparatus used in the injection process of the manufacturing process of the sidewalk block using the waste synthetic resin according to an embodiment of the present invention.

7 is a view showing a plane and a cross-section of the mini-block assembly of the injection apparatus used in the injection process of the manufacturing process of the sidewalk block using the waste synthetic resin according to an embodiment of the present invention.

8 and 9 are enlarged views of “B” in FIG. 6.

10 is a perspective view illustrating a nozzle tip and a contact bush of an injection apparatus used in an injection process during a manufacturing process of a sidewalk block using waste synthetic resin according to an embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

100: upper mold 100h: injection hole

200: lower mold 300: mini block assembly

310: tap block 320: sprue bushing

330: contact nozzle 331: contact hole

333: Nozzle tip 333a: Concave groove

333b: horizontal plane 333h: fine hole

335: contact bush 335a: horizontal disc

335b: opening and closing bar 335c: conical projection

335h: disk hall 340: micro heater

Claims (12)

In the method for producing a sidewalk block using waste synthetic resin, A first step (S10) of sorting out impurities remaining in the waste synthetic resin; A second step (S20) of crushing the selected waste synthetic resin into a size of 2 to 4 cm using a crusher; A third step (S30) of finely crushing the crushed waste synthetic resin into a size of 0.5 ~ 1mm using a grinder; A fourth step (S40) of drying the finely ground waste synthetic resin using hot air; A fifth step of mixing 5-40 parts by weight of glass powder, 10-20 parts by weight of absorbent resin, 10-20 parts by weight of filler, and mixing by using a stirrer to obtain 20 to 40 parts by weight of the dried waste synthetic resin powder (S50) ); And Supplying the mixture resin obtained by melting the mixture to the injection device to form a sidewalk block (S60); Press block manufacturing method using a waste synthetic resin comprising a. The method of claim 1, Said waste synthetic resin is polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET) at least any one of the press block manufacturing method using a waste synthetic resin, characterized in that it comprises. The method of claim 1, The glass powder is a lattice block manufacturing method using a waste synthetic resin, characterized in that formed in a lattice shape. The method of claim 1, The absorbent resin is silica gel, calcium chloride (CaCl 2 XH 2 0), Press block manufacturing method using a waste synthetic resin, characterized in that it comprises at least one of sodium polyacrylate (Sodium Polyacrylate). The method of claim 1, The filler is a method for producing a sidewalk block using waste synthetic resin, characterized in that at least any one of inorganic, carbon black, clay, iron oxide, calcium carbohydrate, talc, mica. The method of claim 1, The injection device, The upper mold is provided with a plurality of injection holes penetrating the upper and lower surfaces, the lower mold is provided in the lower portion of the upper mold to form a closed space in close contact with or separated from the lower surface of the upper mold, A ball block mounted on an upper surface of the upper mold; Sprue bushing is provided on the upper surface of the water supply block for receiving molten resin from the outside; Contact nozzles provided on the bottom surface of the water flow block so as to correspond to the positions of the respective injection holes to inject molten resin provided through the sprue bushings into the injection holes; And a micro block assembly inserted into one side of the upper mold to control the molten state of the molten resin filled in each injection hole. The mini block assembly further comprises a mini block assembly. . The method of claim 6, The contact nozzle, Contact holes respectively formed on a bottom surface of the ball block to communicate with a plurality of injection holes of the upper mold; A nozzle tip formed through the molten resin and having a cross section having a “U” shape and assembled to the contact hole; And a contact bush provided inside the nozzle tip to adjust a flow rate of the molten resin. The method of claim 7, wherein A concave groove communicating with the micro holes and a horizontal plane extending from the outer circumference of the concave groove to an inner wall surface are formed on the inner bottom of the nozzle tip, and the contact bush is in communication with the concave groove. And a plurality of disc holes formed in the horizontal disc, opening and closing rods extending downward from the center of the bottom surface of the horizontal disc and positioned in the micro holes. The method of claim 8, Method of manufacturing a sidewalk block using waste synthetic resin, characterized in that the conical projections extending upwardly formed in the center of the upper surface of the horizontal disk. The method of claim 8, The top of the opening and closing rods manufacturing method of the sidewalk block using a waste synthetic resin, characterized in that the inclined portion is formed so that the cross-sectional area is widened toward the center of the lower surface of the horizontal disk. The sidewalk block using waste synthetic resin manufactured by the manufacturing method in any one of Claims 1-5. The method of claim 11, Sidewalk block using waste synthetic resin, characterized in that a plurality of drainage grooves are formed toward the rim from the center of the upper surface of the sidewalk block.
KR1020090026321A 2009-03-27 2009-03-27 Sidewalk block using waste synthetic resins and method for manufacturing the same KR20100107943A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102370666B1 (en) * 2021-03-25 2022-03-07 의림환경에너텍(주) Method for manufacturing plastic block with recycled waste wire covering
KR102531335B1 (en) * 2023-01-03 2023-06-14 (주)제이엠산업 A method of manufacturing a car stopper using wire waste
KR102570589B1 (en) * 2023-01-03 2023-08-23 김경섭 Block with biodegradable plastics and method for manufacturing
WO2024084377A1 (en) * 2022-10-21 2024-04-25 Pontina Stampi S.R.L. Blend of recycled plastic materials for construction works and production system thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102370666B1 (en) * 2021-03-25 2022-03-07 의림환경에너텍(주) Method for manufacturing plastic block with recycled waste wire covering
WO2024084377A1 (en) * 2022-10-21 2024-04-25 Pontina Stampi S.R.L. Blend of recycled plastic materials for construction works and production system thereof
KR102531335B1 (en) * 2023-01-03 2023-06-14 (주)제이엠산업 A method of manufacturing a car stopper using wire waste
KR102570589B1 (en) * 2023-01-03 2023-08-23 김경섭 Block with biodegradable plastics and method for manufacturing

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AMND Amendment
J201 Request for trial against refusal decision
B601 Maintenance of original decision after re-examination before a trial
S601 Decision to reject again after remand of revocation