JPH10131337A - Sound insulating sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain excel lent sound insulation performance by sticking a butyl rubber adhesive body on one side of a plastic corrugated cardboard or one side of a laminated body laminating a plurality of plastic corrugated cardboards. SOLUTION: A sound insulating sheet 10 having square hollow holes 1a and sticking a butyl rubber double faced tape on one side of a polypropylene plastic corrugated cardboard 1 over the whole surface is formed. Then, a separation paper provided to a butyl rubber adhesive body 2 of the sound insulating sheet 10 is removed, and it is stuck on the inside surface of an internal wall by making use of adherence of the butyl rubber adhesive body 2. Sounds generated in the side is absorbed in the adhesive body 2 adhering to the internal wall by characteristic converting vibration of the butyl rubber adhesive body 2 into heat energy, and passing sounds passes through the hollow holes 1a of the corrugated cardboard 1 to go through vertically. Accordingly, condensation is prevented by lightweight construction to make it possible to obtain also thermal insulation efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof sheet used for soundproofing, for example, an inner wall, an outer wall, a floor, a ceiling, etc. of a building. The present invention relates to a soundproof sheet that achieves weight reduction.

[0002]

2. Description of the Related Art Modern buildings have improved airtightness by improving the structure and improving the pair of glass at the openings, so that the heavy noise on the second floor has a specific gravity of 1.8 or more and a surface density of 18 kg / m ² or more. Of L-60 clear. In addition, a glass fiber heat insulating material having a thickness of 50 to 100 mm is inserted between the polyethylene film and the aluminum laminated film on the indoor wall to function as sound insulation and heat insulation.

[0003]

However, the soundproofing material that does not transmit the sound of the second floor to the first floor is heavy, and even if it is an inexpensive material in which iron powder or the like is kneaded into asphalt, it is carried into a real residence. Transportation costs are high and consequently expensive. Further, the glass fiber heat insulating material used for the inner wall is expensive in itself, and since the surface in contact with the inner wall surface is a poly film, there is a disadvantage that dew condensation occurs between the inner wall surface and the glass fiber heat insulating material.

[0004]

Means for Solving the Problems The soundproof sheet of the present invention comprises:
In order to solve the above-mentioned inconvenience, a butyl rubber adhesive is stuck on one side of a plastic cardboard. Further, the soundproof sheet according to claim 2 is characterized in that a butyl rubber adhesive is stuck on one surface of a laminate in which a plurality of plastic cardboards are laminated. Claim 3
In the soundproof sheet described above, the laminated plastic cardboards are laminated via a butyl rubber adhesive. Further, the soundproof sheet according to claim 4 is characterized in that at least one pair of the laminated plastic cardboards is laminated in a cross direction. The soundproof sheet according to claim 5 is characterized in that the plastic cardboard is a polypropylene cardboard. The soundproof sheet according to claim 6 is characterized in that a release paper is provided on an exposed surface of the butyl rubber adhesive.

[0005]

Next, an embodiment of the soundproof sheet of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of the soundproofing sheet of the present invention, in which a plastic cardboard 1 made of PP (polypropylene) excellent in weather resistance and having a square hollow hole 1a having a thickness of 0.3 mm and a square shape of 4 mm × 4 mm. 0 on one side of
A butyl rubber double-sided tape (butyl rubber adhesive) 2 having a thickness of 3 mm and a penetration of 80 to 90 is stuck on the entire surface to form a soundproof sheet 10 having a thickness of about 4.5 mm. In addition, 3 in the figure shows a release sheet provided on the butyl rubber adhesive 2,
It protects the butyl rubber adhesive 2 of the soundproof sheet 10 before construction.

FIGS. 2 and 3 show the use state of the soundproof sheet 10. In the figures, reference numeral 20a denotes each inner wall joined to the pillars 30, 30 to form the wall 20 between the living rooms. Reference numeral 20a denotes a veneer, a gypsum board sandwiched between papers, a plywood or the like. Soundproof sheet 10 of the present embodiment
First, the release paper 3 of the soundproof sheet 10
Is removed, and the butyl rubber adhesive 2 is attached to the inner surface of the inner wall 20a, as shown in FIG. Next, as shown in FIG.
The release paper 3 of No. 0 is removed, and the same is applied to the inner surface of the opposite inner wall 20a in the same manner as described above. In this construction example, the soundproof sheets 10 are provided on both inner side surfaces of the opposing inner walls 20a, 20a.
Although 10 is attached, it is also possible to provide it on only one inner wall 20a. Further, in this construction example, an example of application to the inner wall is shown, but the application location such as the outer wall, floor, ceiling, etc. is arbitrary.

Thus, due to the property of the vibration of the butyl rubber adhesive to convert it into heat energy, the sound generated on the A surface is almost absorbed by the butyl rubber adhesive 2 which is in close contact with the inner wall 10a, and the passed sound is transmitted through the hollow hole of the plastic cardboard 1. Exit up and down through 1a. Further, the same structure is provided on the surface B, so that there is no sound passing from the surface A to the surface B. Note that the butyl rubber adhesive 2 is in close contact with the inner surface of the inner wall 20a,
No condensation occurs. Also, plastic cardboard 1
The upper and lower air holes 1a allow air to flow upward and downward to further prevent dew condensation and provide heat insulation.

[0008] The soundproofing properties thus obtained,
Various properties such as heat insulating properties and anti-condensation properties can be set to desired properties by appropriately selecting the thickness of the butyl rubber adhesive, the overall shape of the plastic cardboard, the shape of the hollow hole, the number of laminated plastic cardboards, the laminating direction, and the like. Can be adjusted.

Incidentally, by laminating a plurality of the plastic cardboards 1, the soundproofing characteristics and the like can be further improved. For example, as shown in FIG. 4, two plastic cardboards 1 and 1 are laminated in a direction intersecting each other, and these plastic cardboards 1 and 1 are joined with a butyl rubber adhesive 2 and the plastic cardboards 1 laminated in this manner. , A butyl rubber adhesive 2 on one side of the laminate 1 '
May be attached.

[0010]

As described above, according to the soundproofing sheet of the present invention, the butyl rubber adhesive applied to the plastic corrugated cardboard can be easily attached to the inner wall or the like, and the construction is easy. Adhesive combination structure of butyl rubber adhesive and plastic corrugated cardboard, lightweight structure provides excellent soundproofing, heat insulation, and dew condensation prevention. Conventional heavyweight anti-vibration material with high specific gravity and large volume even with lightweight Can be substituted for the glass fiber heat insulator.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment of a soundproof sheet of the present invention.

FIG. 2 is a perspective view showing a construction state of the soundproof sheet.

FIG. 3 is a perspective view showing a construction state of the soundproof sheet.

FIG. 4 is a perspective view showing another embodiment of the soundproof sheet of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plastic corrugated cardboard 1a Hollow hole 1 'laminated body 2 Butyl rubber adhesive 3 Release paper 10 Soundproof sheet 20 Wall 20a Inner wall 30 pillar

Claims (6)

[Claims] 1. A soundproof sheet obtained by sticking a butyl rubber adhesive to one side of a plastic cardboard. 2. A soundproof sheet in which a butyl rubber adhesive is adhered to one surface of a laminate in which a plurality of plastic cardboards are laminated. 3. The soundproof sheet according to claim 2, wherein the plastic cardboard is laminated via a butyl rubber adhesive. 4. The soundproof sheet according to claim 2, wherein at least one pair of the plastic cardboards is laminated in a cross direction. 5. The soundproof sheet according to claim 1, wherein the plastic cardboard is a polypropylene cardboard. 6. The soundproof sheet according to claim 1, wherein a release paper is provided on an exposed surface of the butyl rubber adhesive.