KR101610902B1 - Rubber mat to protect floor noise using waste tire - Google Patents
Rubber mat to protect floor noise using waste tire Download PDFInfo
- Publication number
- KR101610902B1 KR101610902B1 KR1020150123795A KR20150123795A KR101610902B1 KR 101610902 B1 KR101610902 B1 KR 101610902B1 KR 1020150123795 A KR1020150123795 A KR 1020150123795A KR 20150123795 A KR20150123795 A KR 20150123795A KR 101610902 B1 KR101610902 B1 KR 101610902B1
- Authority
- KR
- South Korea
- Prior art keywords
- rubber
- sheet member
- panel
- binder
- lower panel
- Prior art date
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 49
- 239000010920 waste tyre Substances 0.000 title claims abstract description 31
- 239000011230 binding agent Substances 0.000 claims abstract description 24
- 239000011247 coating layer Substances 0.000 claims abstract description 9
- 238000010298 pulverizing process Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000011229 interlayer Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 239000001023 inorganic pigment Substances 0.000 claims description 8
- 244000025254 Cannabis sativa Species 0.000 claims description 7
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 7
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 7
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 235000009120 camo Nutrition 0.000 claims description 7
- 235000005607 chanvre indien Nutrition 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 7
- 239000011487 hemp Substances 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000000049 pigment Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000007731 hot pressing Methods 0.000 claims description 4
- 238000005304 joining Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 229920006262 high density polyethylene film Polymers 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- 238000002845 discoloration Methods 0.000 claims description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 2
- 239000001569 carbon dioxide Substances 0.000 abstract description 2
- 239000004745 nonwoven fabric Substances 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 239000000835 fiber Substances 0.000 description 14
- 239000002994 raw material Substances 0.000 description 13
- 239000010410 layer Substances 0.000 description 12
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 10
- 238000009413 insulation Methods 0.000 description 9
- 239000012071 phase Substances 0.000 description 8
- 239000011810 insulating material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000010030 laminating Methods 0.000 description 3
- 239000011344 liquid material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920006328 Styrofoam Polymers 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000008261 styrofoam Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- BFMKFCLXZSUVPI-UHFFFAOYSA-N ethyl but-3-enoate Chemical compound CCOC(=O)CC=C BFMKFCLXZSUVPI-UHFFFAOYSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
- E04F15/206—Layered panels for sound insulation
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8461—Solid slabs or blocks layered
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
- E04F2290/041—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise
Abstract
Description
The present invention relates to a rubber mat for preventing noise between layers using waste tires. More particularly, the present invention relates to a rubber mat for preventing noise between layers by using a waste tire, And more particularly to a rubber mat for preventing interlayer noise using an improved waste tire.
In Korea, due to its unique heating structure, when building the floor of the apartment house, lightweight concrete with a specific gravity of about 0.5 is placed in the upper part of the slab to secure a horizontal insulation layer for the heating coil and a heat insulation layer at the bottom of the heating coil, It is a common practice to complete the floor structure by installing a heating coil and casting the finishing mortar to a thickness of about 40 to 60 mm.
Also, in the interlayer noise-preventing material industry, a variety of materials have been developed and marketed. In the beginning, a method of mixing and crushing the pulverized waste tire with an adhesive component such as acrylic, urethane, acrylic, etc., It is difficult to improve the sound insulation and heat insulation. In order to improve the sound insulation and insulation, a soundproof panel using a waste tire chip is proposed. In some cases, a waste tire chip and a cork powder However, both of these techniques were not able to fundamentally improve the problem of poor sound insulation and insulation of waste tire chips, and the products were heavy and inconvenient in construction.
Thus, recently, a protrusion pattern is formed on the surface of the foamed polymer material to improve the soundness through the absorption, reflection, and cancellation effects of the incoming noise. However, since the interlayer noise is transmitted in the form of vibration, It is difficult to expect a satisfactory performance through the use of a foamed synthetic resin pulverized product such as ethylene vinyl acetate. However, the problem of the same tendency as that of a waste tire chip and the problem of high heat conduction still remain there was.
Since foamed styrene, which has been conventionally used as a heat insulating material for buildings, has a certain effect of reducing floor impact sound even though it is a heat insulating material, only foamed styrene itself is used as an interlayer noise preventing material in many sites. In addition, they are used as an interlayer noise-proofing material by changing the texture only through the finishing treatment. However, they are not limited to the category of foamed styrene, and they are combined with foamed styrene, foamed ethylvinyl acetate, polyurethane foam, And the impact of the floor impact sound.
However, it is difficult to expect the effect of reducing the floor impact sound by neglecting the effect of blocking the light impact sound and the heavy impact sound, which are fundamental factors of the reduction of the floor impact sound, by the characteristics of the foamed styrene.
The impact sound described above can be divided into a light impact sound and a heavy impact sound. The light impact sound can be reduced by the existing sound insulating material as a loud noise, that is, a falling sound of a coin or a high-heeled sound. Since the sound of dull sounds such as playing sounds is transmitted by vibration, it is a reality that the conventional sound insulating material can not show the effect of reducing the heavy impact sound in the existing floor structure.
In recent years, as a floor impact sound insulating material, a porous upper and lower nonwoven fabric layer, which is adhered to the upper and lower surfaces of the styrofoam layer through the upper and lower adhesive layers, is formed on the styrofoam layer having heat insulation, Layer sound-deadening material composed of a natural foamed rubber layer having an embossed surface formed on the upper side and having a chemical resistance, an oil resistance, an abrasion resistance, and a wear-resistance, and attempts to reduce heavy impact sound have been proposed. However, There is still a problem that the heavy impact sound transmitted by the vehicle can not be effectively blocked.
The present invention has been made in view of the above-mentioned problems of the prior art. It is an object of the present invention to provide a method of manufacturing a tire, which comprises stacking a sheet member containing natural fibers between an upper panel and a lower panel using waste tires to improve carbon dioxide, And a rubber mat for preventing interlayer noise by using a waste tire, which is advantageous in that it is advantageous in that it is possible to prevent the generation of odor of rubber.
It is an object of the present invention to provide a rubber mat for preventing noise between layers using a waste tire, comprising: an upper panel made of a rubber chip formed by crushing a waste tire and an image binder having a predetermined shape by joining the rubber chip; A lower panel made of a rubber chip formed by pulverizing a waste tire and a lower binder which has a predetermined shape by joining the rubber chip; A sheet member provided between the upper panel and the lower panel, and a coating layer provided on the surface of the upper panel and the mat.
And the size of the rubber chip is 5 to 7 mm.
Wherein the phase binder and the under binder are fast curing type urethane and have a viscosity (cps 23 degrees) of 2,500 to 4,500, a specific gravity of 1.00 to 1.1, and an NCO content of 6.5 to 7.0. .
Wherein the phase binder and the under binder are fast curing type urethane and have a viscosity (cps 23 degrees) of 1,000 to 3,000, a specific gravity of 1.00 to 1.1, and an NCO content of 12.5 to 13.0. .
And an inorganic pigment is further included in the upper panel and the lower panel.
Wherein the inorganic pigment is at least one selected from the group consisting of iron ore, nickel, titanium, and copper.
Wherein the coating layer is vinyl having a thickness of 0.05 mm.
Wherein the sheet member is a hemp fiber, and the sheet member is a hemp fiber.
The sheet member is obtained by heat-pressing the PP, LM, hemp, and adhesive materials after hot-pressing, and has a thickness of 0.8 to 1.2 mm and a weight of 75 to 85 g.
Wherein the sheet member is an HDPE film.
And a ventilation hole is further formed in the upper panel and the lower panel.
And a groove or an emboss is further provided on one surface of the lower panel so as to be spaced from the slab surface.
The rubber mat of the present invention comprises a first step of forming a rubber chip by pulverizing a waste tire to a size of 5 to 7 mm in a method of manufacturing a rubber mat for preventing noise between layers using a waste tire; A second step of mixing a rubber chip produced by the first step with a phase binder or a lower binder to prepare a liquid raw material; A first raw material filling step of partially filling the liquid raw material produced by the second step into a mold; A sheet laminating step of laminating a sheet member to a metal mold filled with a liquid raw material by the first raw material filling step; A second raw material filling step of re-filling the sheet material laminated by the sheet laminating step into a mold; Wherein the raw material and the sheet member laminated on the mold are heated and compressed at a pressure of 180 to 200 TON for 12 to 18 minutes while heating the raw material and the sheet member at a temperature of 100 to 120 DEG C to manufacture an interlayer noise- Method.
In the present invention, the sheet member including the natural fibers is laminated between the upper panel and the lower panel using the waste tire and is heated and pressed, thereby maximizing efficiency in preventing impact load and impact sound transmission, It is a useful invention with the advantage of preventing.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing the structure of a rubber mat for preventing interlayer noise using a waste tire to which the technique of the present invention is applied. FIG.
2 is a sectional view showing another embodiment of the present invention;
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 is a cross-sectional view showing a structure of a rubber mat for preventing noise between layers using a waste tire to which the technology of the present invention is applied. The
The
Meanwhile, the
The phase binder used herein may be a fast curing type urethane having a viscosity (cps 23 degrees) of 2,500 to 4,500, a specific gravity of 1.00 to 1.1, and an NCO content of 6.5 to 7.0. The phase binder may be a fast curing type urethane , A viscosity (cps 23 degrees) of 1,000 to 3,000, a specific gravity of 1.00 to 1.1, and an NCO content of 12.5 to 13.0.
The
The inorganic pigment may be at least one selected from the group consisting of iron ore, nickel, titanium, and copper. The iron ore is red, nickel, titanium, iron ore is green, and copper is yellow. The reason why the inorganic pigment is used is to prevent the pigment from being deformed due to high heat.
Meanwhile, the
At this time, the
The
After the liquid material is filled in the mold as described above, the sheet material is placed on the upper surface of the mold, and the liquid material, which is obtained by mixing the
When the liquid material and the sheet member are installed on the mold as described above, the raw materials and the sheet member stacked on the mold are heated and compressed at a pressure of 180 to 200 TON for 12 to 18 minutes while being heated to 100 to 120 캜, A bonding process is performed.
Since the metal mold is provided with a general heating device, it can supply heat at a high temperature. The structure of the metal mold is omitted. When the heating temperature is heated to 100 ° C or less, the rubber chips are not agglomerated. There is a problem that the surface becomes rough due to sticking to the mold.
The
The
2, the through
In the present invention, the sheet member including the natural fibers is laminated between the upper panel and the lower panel using the waste tire and is heated and pressed, thereby maximizing efficiency in preventing impact load and impact sound transmission, It is a useful invention with the advantage of preventing.
100: coating layer 200: upper panel
210: rubber chip 220: phase binder
300: lower panel 310: rubber chip
320: lower binder 400: sheet member
Claims (15)
An upper panel made of a rubber chip formed by crushing a waste tire and an image binder for combining the rubber chip with a predetermined shape; A lower panel made of a rubber chip formed by pulverizing a waste tire and a lower binder which has a predetermined shape by joining the rubber chip; And a sheet member installed between the upper panel and the lower panel,
The upper panel, the sheet member, and the lower panel, and the size of the rubber chip is 5 to 7 mm. Thus, the chip is prevented from being melted during hot pressing or easily broken during manufacture of the panel, The upper panel and the lower panel further include an inorganic pigment to prevent discoloration of the pigment due to heat at a high temperature during hot pressing, and a mat formed by heating and pressing the laminate stacked in the order of the lower panel, the sheet member, Wherein a coating layer is further provided on the entire surface to prevent generation of a rubber odor and to increase heat transfer efficiency and further to form a through hole in the upper panel and the lower panel to prevent sound and vibration from being transmitted, A rubber mat for preventing interlayer noise using.
Wherein the phase binder and the under binder are fast curing type urethane and have a viscosity (cps 23 degrees) of 2,500 to 4,500, a specific gravity of 1.00 to 1.1, and an NCO content of 6.5 to 7.0.
Wherein the phase binder and the under binder are fast curing urethane and have a viscosity (cps 23 degrees) of 1,000 to 3,000, a specific gravity of 1.00 to 1.1, and an NCO content of 12.5 to 13.0.
Wherein the inorganic pigment is at least one selected from the group consisting of iron ore, nickel, titanium, and copper.
Wherein the coating layer is a vinyl having a thickness of 0.05 mm.
Wherein the sheet member is made of PP, LM, hemp, and adhesive material and is heated and pressed.
Wherein the sheet member has a thickness of 0.8 to 1.2 mm and a weight of 75 to 85 g.
Wherein the sheet member is an HDPE film.
Wherein a lower surface of the lower panel is provided with grooves or embossed portions spaced apart from the slab surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150123795A KR101610902B1 (en) | 2015-09-01 | 2015-09-01 | Rubber mat to protect floor noise using waste tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150123795A KR101610902B1 (en) | 2015-09-01 | 2015-09-01 | Rubber mat to protect floor noise using waste tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR101610902B1 true KR101610902B1 (en) | 2016-04-08 |
Family
ID=55908146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150123795A KR101610902B1 (en) | 2015-09-01 | 2015-09-01 | Rubber mat to protect floor noise using waste tire |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101610902B1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101840414B1 (en) | 2017-09-29 | 2018-03-21 | 주식회사 가나실업 | Interlayer noise insulation with excellent workability using waste recycled materials |
| KR101967225B1 (en) * | 2018-12-27 | 2019-04-09 | (주)에스씨알 | Non-toxic polyurea flooring construction method for children's play facilities without odor |
| KR101970652B1 (en) * | 2018-07-11 | 2019-04-19 | (주)플러버 | A calibration method of bottom surface for joining of elastic roll sheet |
| KR102191922B1 (en) | 2020-05-08 | 2020-12-16 | 문수동 | Composition for reducing noise between floors and constructing method thereof |
| KR102493965B1 (en) | 2022-05-23 | 2023-02-07 | 주식회사 아셀 | Buffer mat for preventing noise between floors |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200192046Y1 (en) * | 2000-03-09 | 2000-08-16 | 주식회사건배산업 | Dustproof pad of a building floor |
| KR200299609Y1 (en) | 2002-10-09 | 2002-12-31 | 권태환 | Flooring sheets reclaimed from a synthetic rubber |
-
2015
- 2015-09-01 KR KR1020150123795A patent/KR101610902B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200192046Y1 (en) * | 2000-03-09 | 2000-08-16 | 주식회사건배산업 | Dustproof pad of a building floor |
| KR200299609Y1 (en) | 2002-10-09 | 2002-12-31 | 권태환 | Flooring sheets reclaimed from a synthetic rubber |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101840414B1 (en) | 2017-09-29 | 2018-03-21 | 주식회사 가나실업 | Interlayer noise insulation with excellent workability using waste recycled materials |
| KR101970652B1 (en) * | 2018-07-11 | 2019-04-19 | (주)플러버 | A calibration method of bottom surface for joining of elastic roll sheet |
| KR101967225B1 (en) * | 2018-12-27 | 2019-04-09 | (주)에스씨알 | Non-toxic polyurea flooring construction method for children's play facilities without odor |
| KR102191922B1 (en) | 2020-05-08 | 2020-12-16 | 문수동 | Composition for reducing noise between floors and constructing method thereof |
| KR102493965B1 (en) | 2022-05-23 | 2023-02-07 | 주식회사 아셀 | Buffer mat for preventing noise between floors |
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