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KR-20260065582-A - INTERFLOOR NOISE INSULATION

KR20260065582AKR 20260065582 AKR20260065582 AKR 20260065582AKR-20260065582-A

Abstract

An embodiment provides an interlayer sound insulation material comprising: a sound-absorbing member having a storage modulus of 0.05 MPa to 0.15 MPa at 1 Hz and 25°C; and a support member disposed on the sound-absorbing member and in direct contact with the sound-absorbing member.

Inventors

  • 조희진
  • 문갑수

Assignees

  • 피유코어 주식회사

Dates

Publication Date
20260508
Application Date
20251031
Priority Date
20241101

Claims (14)

  1. A sound-absorbing member having a storage modulus of 0.05 MPa to 0.15 MPa at 1 Hz and 25℃; and An interlayer sound insulation material comprising a support member disposed on the sound-absorbing member and in direct contact with the sound-absorbing member.
  2. In claim 1, the support member A plurality of column sections inserted into the sound-absorbing section; and An interlayer sound insulation material comprising a connecting portion that connects the above-mentioned column portions to each other.
  3. In claim 2, the above-mentioned column part A cavity that is an empty space inside; and It includes an outer wall portion surrounding the outer periphery of the above cavity, and The above connection part is an interlayer sound insulation material connected to the top of the above outer wall part.
  4. In Paragraph 3, The above column sections First column section; A second column portion disposed adjacent to the same plane as the first column portion and spaced apart from the first column portion; A third column portion disposed adjacent to the same plane as the first column portion and spaced apart from the first column portion; and A fourth column portion disposed adjacent to the same plane as the second column portion and the third column portion, and spaced apart from the second column portion and the third column portion; The above connecting part A first connecting part extending from the first column part to the fourth column part and connecting the first column part and the fourth column part; and It includes a second connecting part extending from the second column part to the third column part and connecting the second column part and the third column part; The above-mentioned first connecting part and the above-mentioned second connecting part intersect each other and are connected to each other, forming an interlayer sound insulation material.
  5. In claim 4, the interlayer sound insulation material further comprising a reinforcing member that is connected to the first connecting member and the second connecting member and is integrally formed with the first connecting member and the second connecting member.
  6. In claim 4, an interlayer sound insulation material having a void space formed between the first connecting part and the column parts, and a void space formed between the second connecting part and the column parts.
  7. In claim 5, an interlayer sound insulation material in which a void space is formed between the reinforcing part and the column part.
  8. In claim 7, the interlayer sound insulation material in which the column portions, the connecting portions, and the reinforcing portions are integrally formed.
  9. In claim 3, the interlayer sound insulation material in which the diameter of the cavity becomes progressively smaller towards the bottom.
  10. In claim 3, the interlayer sound insulation material in which the diameter of the cavity becomes progressively larger towards the bottom.
  11. In claim 3, the interlayer sound insulation material further comprises a pressure dispersion member extending laterally from the lower part of the column member.
  12. In claim 3, the interlayer sound insulation material further comprising a vibration dispersion member that extends from the outer wall portion and is partially or entirely inserted into the sound-absorbing portion.
  13. In claim 2, the interlayer sound insulation material further comprising a vibration dispersion member that extends from the connection member and is partially or entirely inserted into the sound-absorbing member.
  14. In claim 5, the interlayer sound insulation material further comprising a vibration dispersion member that extends from the reinforcing member and is partially or entirely inserted into the sound-absorbing member.

Description

Interfloor Noise Insulation The embodiment relates to an interlayer sound insulation material. Along with changes in housing conditions, securing housing performance to protect users (residents) is emerging as a major issue both domestically and internationally. In particular, Japan enacted the "Quality Assurance Promotion Act" in 2000 and is encouraging rational housing supply and consumption based on consumer choice by publicly disclosing quality during the housing supply process. Domestically, an objective housing quality labeling system has also been introduced to induce overall quality and performance improvements in multi-unit housing, thereby meeting the public's demand for improved housing quality and enhancing individual asset values. This not only contributes to the sound development of the housing industry at the national level but also promotes the advancement of housing construction technology and the housing industry, enabling the public to select housing while knowing its quality and performance in advance. The current industry is conducting various research and development efforts to address the issue of floor impact noise, which is emerging as a major factor degrading the residential environment of multi-unit housing, in order to construct multi-unit housing that complies with regulations. In particular, the development of various soundproofing materials equipped with both thermal insulation and impact noise reduction functions for floor slabs is actively underway. As a few examples regarding sound insulation materials, Korean Registered Patent No. 166993 discloses a floor construction method in which a rubber material mixed with an adhesive substance is laid on a slab, a polyethylene foam sponge is laminated on top of it to form a barrier layer, and then a flooring material is formed on the foam sponge. Additionally, Korean Published Patent No. 2006-38862 discloses a thermoplastic foam having a foaming ratio of 5 to 200 times and foam cells of a specific diameter, which can be used as a sound insulation material for inter-floor noise in buildings. All of the aforementioned prior art technologies utilize resin foam as a component for reducing inter-floor noise. Such resin foam has long been installed for purposes such as thermal insulation or cushioning, and examples include foams made of polyethylene, polystyrene, or polyvinyl chloride. However, while such conventional foams achieve a certain degree of thermal insulation or shock cushioning, their effectiveness in absorbing, dispersing, and dissipating floor impact sound—a major cause of inter-floor noise—has not been satisfactory. Meanwhile, Korean Public Patent No. 2008-0027177 was developed to improve the above-mentioned problems and relates to an interlayer sound insulation material comprising an open-cell containing resin foam having an open-cell ratio of 20% or more (including 60% or more and 80% or more) and a dynamic elastic modulus of 0.5 to 10 MN/㎥, which is said to be effective in absorbing and dissipating noise and vibration caused by impact. FIG. 1 is a perspective view illustrating an interlayer sound insulation material according to an embodiment. Figure 2 is a cross-sectional view showing a cross section cut along A-A' in Figure 1. FIG. 3 is a cross-section of an interlayer sound insulation material according to another embodiment. FIG. 4 is a cross-section of an interlayer sound insulation material according to another embodiment. FIG. 5 is a drawing showing a cross-section of an interlayer sound insulation material according to another embodiment. FIG. 6 is a cross-section of an interlayer sound insulation material according to another embodiment. FIG. 7 is a drawing showing a cross-section of an interlayer sound insulation material according to another embodiment. FIG. 8 is a cross-section of an interlayer sound insulation material according to another embodiment. FIG. 9 is a drawing showing a cross-section of an interlayer sound insulation material according to another embodiment. FIG. 10 is a drawing showing a cross-section of an interlayer sound insulation material according to another embodiment. FIG. 11 is a drawing showing a cross-section of an interlayer sound insulation material according to another embodiment. FIG. 12 is a drawing showing a cross-section of an interlayer sound insulation material according to another embodiment. FIG. 13 is a drawing showing a cross-section of an interlayer sound insulation material according to another embodiment. FIG. 14 is a perspective view illustrating an interlayer sound insulation material according to another embodiment. FIG. 15 is a perspective view illustrating the support member. FIG. 16 is a cross-sectional view showing a cross section cut along B-B' in FIG. 14. FIG. 17 is a drawing showing a cross-section of an interlayer sound insulation material according to another embodiment. FIG. 18 is a drawing showing a cross-section of an interlayer sound insulation material