JPH02276629A - Vibration-damping and soundproofing panel - Google Patents

Abstract

PURPOSE:To reduce the thickness and weight of a wall by a method in which the sheet base wherein the space between the closed cell bodies of a closed cell body - arranged base is filled with crosslinked viscoelastic body is formed, and the constraining member of a plate body is laminated on one surface of the sheet base, and a sound-deadening sheet and a sound-absorbing sheet are laminated on the other surface thereof, and the vibration-damping and soundproofing boards obtained by said process are made into a double structure so that the sound-absorbing or the sound-damping sheet is placed inside. CONSTITUTION:The sheet base 1 containing closed cell bodies with crosslinked viscoelastic bodies is made by filling the space between the closed cell bodies of a closed cell body-arranged base with crosslinked viscoelastic bodies. A constraining member 2 of a plate body is laminated on one surface of the sheet base containing the closed cell bodies with the crosslinked viscoelastic bodies, and the composite plate to which the laminate of a sound-insulating sheet 3 and a soundproofing sheet 4 is stuck on the other surface of the sheet base, is successively laminated so that the surface of a sound absorbing member becomes an inner surface and the air layer 5 of the thickness of 20-200mm is provided, whereby a vibration-damping and soundproofing panel is constituted.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vibration-damping and sound-insulating panel that has excellent vibration-damping, sound-insulating, and sound-absorbing properties and can be applied to interior or exterior wall materials for buildings.

(Prior art) As soundproofing materials for houses or buildings, in the case of double-layered exterior and interior wall materials, a high-density type soundproofing material is attached to a plywood or metal plate that serves as a substrate, and Sound-absorbing materials such as glass wool and rock wool are layered on top, or only sound-absorbing materials such as glass wool are inserted to improve low-frequency resonance transmission and the coincidence effect unique to double-walled walls.

(Problem B that the invention seeks to solve) However, the conventional structure does not sufficiently improve low-frequency resonance transmission and the coincidence effect peculiar to double-walled walls, and impact noise from the upper floor is transmitted to the lower floor through the wall. There was a problem.

In the case of sand-inch plywood in which elastic bodies are laminated between plywood sheets, a low-frequency resonance transmission phenomenon occurs in the middle frequency range, which is important for sound insulation, due to the influence of the elasticity, which is inconvenient. In addition, connecting plywood boards together using a core material such as a highly rigid honeycomb core increases the overall rigidity and reduces T'L due to the coincidence effect.
This decrease occurs in the midrange, which also reduces the sound insulation properties.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a closed cell-arranged base material (A) that utilizes the vibration damping properties of an air layer, and has excellent vibration damping properties and compression properties. A closed cell-containing sheet with a crosslinked viscoelastic body, in which the spaces between the closed cells of the closed cell arranged base material (A) are filled with the crosslinked viscoelastic body (B). A vibration-damping and sound-insulating board (made by laminating a plate-like restraining material (D) on one side of a base material (C) and laminating a sound insulating sheet, a sound absorbing sheet, or a sound insulating sheet and a sound absorbing sheet on the other side) E) is characterized by a vibration damping and sound insulating panel having a double structure with the sound absorbing sheet surface or the sound insulating sheet on the inside.

(Function) In the vibration damping and sound insulating panel of the present invention, the thickness of the sound insulating material made of a sheet with a degree of inclusion of 20 to 200 and a reinforcing base material is 1+.
This is a self-adhesive flame-retardant and sound-insulating sheet with a rating of +v+ or less.

In the vibration-damping and sound-insulating panel of the present invention, the aperture ratio of the restraining material is 3 to 40%, the plate thickness is 0.5 to 20 mm, and the area of one perforated part is 0.003 to 3.5 cm+" It is preferable to use a perforated plate having a diameter of 0.5 mm as a restraining material, and furthermore, between the perforated plate and the crosslinked viscoelastic closed cell-containing sheet base material (C).
It is preferable to insert a net-like material of 1+sm to 20mm to form a vibration-damping and sound-insulating panel.

This composite hollow double structure soundproof panel significantly reduces the transmission of solid-borne sound through the wall, and also improves the deterioration of sound insulation properties that is characteristic of hollow double structure walls. It has new features.

The vibration-damping and sound-insulating panel of the present invention uses a self-adhesive flame-retardant and sound-insulating sheet, which has excellent flexibility and adhesive properties, so it has excellent application workability and dimensional stability, and is a high specific gravity sheet. However, since the thickness is less than 1+u+, it has excellent soundproofing properties and has the great feature of being able to reduce the weight of the wall itself.

In the vibration damping and sound insulating panel of the present invention, the aperture ratio of the restraining material is 3 to 40%, the plate thickness is 0.5 to 20 mm, and the perforated portion is 1.
By using a perforated plate with an area of 0.003 to 3.5 crs as a restraining material, it is possible to improve the frequencies in the low and middle ranges. Diameter Q, l mm-20 between the containing sheet base material
By inserting the IIIll net-like material, it is possible to further improve the vibration damping and soundproofing effect in the low and middle range frequencies.

The double structure wall of the vibration damping and sound insulating panel of the present invention having the above structure has excellent soundproofing properties, and the thickness of the wall can be made thinner and the weight can be reduced. It is possible to reduce the number of components in the body structure, and also to reduce costs during transportation and construction.

(Example) With reference to the drawings, embodiments of the double structure vibration damping and soundproofing panel of the present invention will be described below.

1 to 6 show the cross-sectional structure of the vibration damping and sound insulating panel of the present invention, in which 1 indicates a sheet base material containing a closed cell with a crosslinked viscoelastic body, and in the present invention, this sheet base material 1 consists of a closed cell-arranged base material in which the spaces between the closed cells are filled with a crosslinked viscoelastic material, and the one shown in Figure 1 is a closed cell-containing sheet base material with a crosslinked viscoelastic material. l
A composite board with a plate-like restraining material 2 laminated on one side and a laminate of a sound insulating sheet 3 and a sound insulating sheet 4 on the other side is 20 to 200 ram with the sound absorbing material side facing inside. A vibration-damping and sound-insulating panel is constructed by providing a thick air layer 5 and sequentially laminating layers.

What is shown in FIG. 2 is a laminate in which a plate-shaped restraining material 2 is laminated on one side of a sheet base material 1 containing a closed cell with crosslinked viscoelastic material, and a sound insulation sheet 3 and a sound insulation sheet 4 are laminated on the other surface. A sound insulating sheet 3, a sheet base material 1, and a restraining material 2 are laminated in this order, with an air layer 5 provided on the composite board with the sound absorbing material side facing inside.

The one shown in FIG. 3 is different from the one shown in FIG. 2 by omitting the sound insulating sheet 3 disposed on the other side and making the air space 5 wider.

The one shown in FIG. 4 is different from the one shown in FIG. 3 in that the sheet base material 1 disposed on the other side is omitted and the air space 5 is made wider.

In the case shown in FIG. 5, a perforated plate 6 as a restraining material is pasted on one side of the sheet base material I, and a sound insulation sheet 3 and a sound insulation sheet 4 are laminated on the other surface of the sheet base material I. A vibration damping and sound insulating board is provided, and a sound absorbing sheet 4, a sound insulating sheet 3, and a sheet base material l are provided through an air layer 5 of 20 to 200 ass.
and perforated plates 6 are sequentially laminated to form a vibration damping and sound insulating panel. Here, the order of the sound insulation sheet 3 and the sound insulation sheet 4 may be reversed, and the sound insulation sheet 3 may be arranged so as to be pasted on the inside of the sheet base material 1.

In the structure shown in FIG. 6, a perforated plate 6 as a restraining material 2 is attached to one side of a sheet base material 1 through a mesh 7, and a restraining sheet made of a sound insulation sheet 3 and a sound insulation sheet 4 is attached to the other surface. A vibration and soundproof boat is provided, an air layer 5 of 20 to 200 cm is provided, and a soundproof sheet 4, a soundproof sheet 3, and a sheet base material 1 are further laminated, and a perforated plate 6 is inserted with a mesh 7 on the other surface. perforated plate 6
This shows an embodiment in which a vibration damping and sound insulating panel is constructed by joining the two.

In implementing the present invention, as shown in FIGS. 2 to 4,
A composite board with a laminate of sound insulation sheet 3 and sound insulation sheet 4 pasted on one side may be provided only on the sheet base material 1 on one side, and the other side may be provided with the restraining material 2 alone or a closed cell with crosslinked viscoelastic material. A vibration-damping and sound-insulating panel may be constructed by laminating a laminate of the body-containing sheet) 1 and the restraining material 2, or by further laminating a sound-insulating sheet 3.

Next, the wall members will be explained step by step.

Specific examples of restraining materials include plywood, compressed paper, plastic board, metal foil board, vertical board, wood chip cement board, fiberboard, pulp cement board, flexible board, soft flexible board, large flat board, asbestos cement board,
Examples include asbestos-cement perlite boards, asbestos-cement calcium silicate boards, and gypsum boards. All of these can be used with or without decorative finishing on the surface as long as they are in board form. If this is important to you, a thin board is preferable. In order to further improve the soundproofing properties, the restraining material should have an aperture ratio of 3 to 40%, and the area of one perforated part should be 0%.
．． 0.003 to 3.5 cm" is desirable.

The crosslinked viscoelastic substance referred to in the present invention is liquid at room temperature,
Moreover, the cured product after reacting at room temperature retains its shape even when heated to 80'C, and the hardness at 20'C is 50 on the C-type hardness tester shown in Japan Rubber Association Standard S RI S-0101.
It satisfies the following conditions. Furthermore, as a matter of course, substances that react at room temperature can further increase the curing speed by heating, and this property can be utilized to improve production efficiency by heating when manufacturing the panels of the present invention. It's okay.

Examples of reactive substances that can satisfy the above conditions include combinations of liquid rubbers having functional groups shown in Table 1 and crosslinking agents.

Considering the ease of controlling curing rate, cost, and availability of room-temperature reactivity, these products have a hydroxyl group at the end and a main chain consisting of polybutadiene, hydrogenated polybutadiene, polybutadiene, etc. It is desirable to use nitrile, polybutadiene-styrene, isoprene, etc., polyether polyol, polyester polyol, urethane acrylic polyol, aniline derivative polyol, etc. alone or in combination.

Further, as the curing agent for the above-mentioned reactive substance, an isocyanate-based curing agent is suitable, and it is necessary that each molecule has two or more isocyanate groups.

Table-1 Functional group of liquid rubber Functional group of crosslinking agent Functional group of liquid rubber Functional group of crosslinking agent NGO -OR, -NHt, -NIIR, -COO)l, -
5H-Br -NRz+ -NHR, -NHz
(Metal oxide) H NR1 Metal oxide, -OR, -NCO oo-N-C>N-OH Metal oxide -NGO, peroxide polyvalent halogen compound (-Br) Specific examples include toluylene diisocyanate, Mention may be made of diphenylmethane diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, prepolymers with terminal isocyanate groups,
They can be used alone or in combination. Also, isocyanate curing agents can be used in combination with plasticizers due to problems such as blending ratio and/or viscosity, but the plasticizers must be dehydrated and do not react with isocyanate compounds. It is.

Although it is possible to obtain a crosslinked viscoelastic material that satisfies the present invention by combining only the essential components for the room-temperature reaction described above, various additives may be added in order to improve cost, workability, and physical properties. By adding it, a wide variety of stable crosslinked elastic materials can be obtained.

Additives include plasticizers, fillers, bituminous substances, tackifying resins, anti-aging agents, anti-mold agents, flame retardants, catalysts, surfactants,
Examples include coupling agents.

The plasticizer is blended for the purpose of adjusting viscosity, adjusting workability, adjusting the physical properties of the crosslinked viscoelastic body, imparting flame retardance, and the like.

Specific examples of plasticizers include naphthenic oils, paraffinic oils, aromatic oils, castor oil, cottonseed oil, pine oil, tall oil, phthalic acid derivatives, isophthalic acid derivatives, adipic acid derivatives, maleic acid derivatives, and liquid rubber functionalization. There are also those that do not contain groups, and they can be used alone or in combination.

When flame retardancy is required, halogen compound-based or phosphorus compound-based plasticizers can be used alone or in combination.

Examples of bituminous materials include straight asphalt, blown asphalt, and tar, which may be used after being modified with a tackifying resin, plasticizer, etc. in order to obtain a desired crosslinked viscoelastic material.

Tackifying resins include natural resins, rosins, modified rosins, derivatives of rosins and modified rosins, polyterpene resins, modified terpenes, aliphatic hydrocarbon resins, cyclopentadiene resins, aromatic petroleum resins, and phenolic resins. ,
Alkylphenol-acetylene resins, xylene resins, coumaron indene resins, vinyltoluene-α-methylstyrene copolymers, and the like can be used alone or in combination.

Fillers are effective in improving vibration damping properties, sound insulation properties, and flame retardancy, and can be used to adjust the blending ratio of main ingredient/curing agent, adjust viscosity, and reduce blending costs. You can use commonly used related items.

Specific examples include scaly inorganic powders such as mica, graphite, vermiculite, talc, and clay, ferrite, metal powders, barium sulfate, high-density fillers such as lithopone, calcium carbonate, finely divided silica, carbon magnesium carbonate, and water. General-purpose fillers such as aluminum oxide and asbestos can be used alone or in combination. Moreover, antimony trioxide, borax, etc. can also be used for the purpose of flame retardation. Other additives include anti-aging agents, catalysts, pigments, surfactants, coupling agents, anti-mold agents, etc., and these can be added as necessary.

Next, the closed cell-equipped base material will be explained.

The closed cell base material is 0.005 cc per piece.
A closed-cell cell having a volume of ~10 cc is dispersed in countless numbers at regular or irregular intervals via a film-like material, thread-like material, foam sheet-like material, plate-like material, sheet-like material, adhesive, adhesive, etc. It refers to connected base materials, and specific examples thereof are shown in FIGS. 7 and 8.

The material of the closed cell bag is polyethylene, polypropylene, ethylene-vinyl acetate co-liquid, vinyl chloride, vinylidene chloride, nylon, polyester, butyl rubber, natural rubber, chloroprene, etc. alone or in layers. (Also, a nonwoven fabric or paper may be laminated.) The thickness of the overlapping portion is preferably 6Ill11 or less, and a more preferable range is 2 to 41111.

The convex portion of the closed cell may have any shape such as columnar, prismatic, spherical, hemispherical, or elliptical as long as the closed cell is formed.

It is desirable that the ratio of the volume of the crosslinked viscoelastic body to the volume of the air portion of the closed cell body be 2:8 to 8:2 when used as a sheet base material containing a closed cell with a crosslinked viscoelastic body. If the volume of the crosslinked viscoelastic body becomes smaller than the ratio of elastic body volume: volume of the air portion of the closed cell body = 2:8, the cost of raw materials increases and the restorability tends to deteriorate.

A self-adhesive flame-retardant and sound-insulating sheet with a thickness of 1 mm or less consisting of a sheet with a loading rating of 20 to 200 and a reinforcing base material is a self-adhesive flame-retardant and sound-insulating sheet with a thickness of 3 to 100 parts by weight of synthetic rubber.
This is a sound insulating material made of a reinforcing base material and a sheet with a loading degree of 20 to 200, which is composed of 100 to 500 parts by weight of metal powder of 0 to 300 μm, 50 to 150 parts by weight of a tackifier, and 10 to 100 parts by weight of a flame retardant.

Further, sound absorbing materials used in the present invention include glass wool, rock wool, felt, urethane foam, etc., and these can be freely selected depending on the purpose.

To explain the material etc. of the net-like material with a diameter of 0.1 mm to 20 mm used in the present invention, the material includes polyethylene,
Polyretin, polypropylene, polystyrene, vinyl chloride, ethylene-vinyl acetate copolymer, nylon, polyester, glass fiber, vinylon, rock wool, cotton,
A fibrous material made of hemp or the like, in which vertical threads and horizontal threads are heat-sealed or bonded together with an adhesive, is used.

Next, the present invention will be explained with reference to Examples and Comparative Examples.

These are summarized in Table 21 and Table 3.

Next, Examples and Comparative Examples of the present invention will be explained.

The examples and comparative examples shown in Table 2 were prepared according to the formulation examples shown in the table, and the base material and curing agent were mixed in the ratio shown in the table, the space in the closed cell substrate was filled, and the mixture was heated at room temperature. hardened. On the other hand, hardness, shape retention at 80°C, and room temperature reactivity were checked using the following methods.

(1) Hardness Create a base resin based on the formulation shown in Table 2, weigh the amount of curing agent and the amount of base resin shown in Table 2, mix them, and then pour into a 12 mm x 50 mm x 50 mm mold that has been subjected to mold release treatment. After reacting at room temperature and curing for 7 days at room temperature and 7 days at 50"C, the hardness was measured using a C-type hardness meter specified in Japan Rubber Association Standard 5RIS-0101.

(2) Shape retention at 80 degrees C
After leaving it for an hour, unload it, leave it at room temperature, and visually check the
Judgment was made based on the magnitude of deformation after 4 hours.

Mark O if the edges are sharp and there is almost no deformation.
Those with no sharp edges or those with large deformation were marked with an X.

(3) Room-temperature reactivity (1) Pour the mixture of the base agent and curing agent into a 100 cc cup, let it stand at room temperature, and after 1 day, if the entire cup has gelled or hardened, mark it with an O mark. The other items were marked with an X.

Next, examples and comparative examples regarding the wall configurations shown in Table 3 will be described.

The cross-linked viscoelastic bodies used in the Examples and Comparative Examples are those shown in Table 2. In Example 1.2 and Comparative Examples, the closed cell volume is 0.3 cc, and the cross-linked viscoelastic bodies and closed cell A closed cell-containing sheet with a crosslinked viscoelastic material was prepared using a closed cell-arranged substrate having a volume ratio of 5:5. In Example 3, the crosslinked viscoelastic body was the same as in other Examples 1.2 and Comparative Example, the volume of the closed cell was 3 cc, and the volume ratio of the crosslinked viscoelastic body to the closed cell was 4:6. A closed cell-containing sheet with a crosslinked viscoelastic material was prepared using a closed cell-arranged base material.

In addition, the sound insulation performance was determined according to JISA 14 according to the method shown in Figure 9.
This was done based on 16.

FIG. 9 shows a method for measuring sound transmission loss in a laboratory according to JIS A1416. The precision sound level meter 10 of the sound device is connected to the sound source side microphone 15 of the sound source room 13 and the sound receiving side microphone 16 of the sound source room 14, and the sound source side microphone 15 is made to face the speaker 17 provided in the sound source room 13. 17 is connected to a precision sound level meter 10 via a noise field generator 18.

Using such equipment, it is possible to measure the average sound pressure level under the conditions specified in JIS A1416, measure the sound absorption power of the sound receiving reverberation room, calculate sound transmission loss, inspect sound pressure level fluctuations,
This involves measuring the sound transmission loss of standard specimens.

Note: The symbols in the wall configuration cross-sectional diagram are as follows.

A4 plywood 3. Ot B, perforated board perforated gypsum board C1 mesh material, closed cell-containing sheet base material with cross-linked viscoelastic material 4, Ot E, sound insulation sheet F, sound absorption sheet (glass wool H2, OtG, air layer in Table 2) The shown Examples and Comparative Examples are examples of the crosslinked viscoelastic material used in the present invention.As shown in Table 2, Examples 1 and 2 are formulation examples that can achieve the object of the present invention, but Comparative Example 1 has a hardness is outside the scope of the claims, indicating that the sound insulation performance is insufficient.

The examples and comparative examples shown in Table 3 are examples showing cross-sectional views of wall structures of the present invention.

Example 1 is an air layer of 65m5+ made of a board made of a crosslinked viscoelastic body-containing closed cell-containing sheet base material, plywood as a constraining layer is laminated on one side, and sound insulating material and sound absorbing material are laminated on the other side. It is a panel with a total thickness of 100 mm and E
This shows that the sound insulation performance and vibration damping performance are good despite the low noise.

Manufactured by ARDO Product name Poly bd R-45HT
Product name manufactured by Dai-Kogyo Seiyaku Co., Ltd. Poly Hardener D-350 Product name manufactured by Idemitsu Kosan Co., Ltd. Diana Process Oil AH-16 Manufactured by Tokyo Jushi Kogyo Co., Ltd. Product name U-Rex 180EF Yasushi Oil Industries Co., Ltd. Product name: YS Resin #1150 Nippon Kagaku Sangyo Co., Ltd. Product name: 28% tin octylate Daiichi Kogyo Seiyaku Co., Ltd. Product name: Bolinx MH Example 2 uses 1.1 cra2 holes as a restraining material. The other configurations are the same as in Example 1 except that a gypsum board with an aperture ratio of 6.0% is used. The damping performance was the same as in Example 1, indicating that the sound insulation performance was further improved.

In Example 3, in addition to the configuration used in Example 2, a diameter of 2 m was added between the perforated plate and the closed cell-containing sheet base material with crosslinked viscoelastic material.
This panel is made by inserting a net-like material of 1.5 m in diameter, and is designed to further improve sound insulation performance.

In Example 4, by using a 0.5 mm self-adhesive sheet instead of the 2 mm sound insulation sheet (area density 3.4 kg/m") used in Example 3, it was possible to reduce the weight by approximately 2 kg/m2. Regardless, the same performance as a sound insulation sheet with vibration damping performance and sound insulation performance of 21 can be obtained.

Comparative Example 1 shows a case where a sheet base material containing a closed cell with a crosslinked viscoelastic body was not provided.

Comparative Example 1 has poor sound insulation performance (not bad), but there is a problem with vibration damping performance, and when used in combination with wood vibration damping flooring, vibrations are transmitted through the wall material and the damping floor function is not fully demonstrated. do not have.

That is, the present invention can improve the deterioration of sound insulation performance due to resonance, which was a drawback of hollow double structure walls, and further uses a perforated plate as a restraining material, and a sheet base containing a closed cell with a restraining material and a crosslinked viscoelastic body. The sound insulation performance can be further improved by inserting a net-like material between the It prevents the propagation of vibrations from upstairs and downstairs, which was a drawback of conventional wall materials, and is also lightweight, making it possible to reduce costs by reducing the wall structure, making it highly economical. It has characteristics.

[Brief explanation of drawings]

FIG. 1 shows a cross-sectional view of the configuration of an embodiment of the present invention, in which a closed cell base with a cross-linked viscoelastic body is mounted on one side of the base material, and a plate-shaped restraining material is placed on the other side for sound insulation. This is a vibration-damping and sound-insulating panel that has a double structure in which a sheet and a sound-absorbing sheet are laminated and an air layer is provided so that the surface of the sound-absorbing sheet is on the inside. FIG. 2 shows a cross-sectional view of the structure of an embodiment of the present invention, in which a cross-linked viscoelastic closed cell-containing sheet 1 has a perforated plate on one side and a sound insulating sheet and a sound absorbing sheet on the other side. It is a vibration-damping and sound-insulating panel that has a double structure by laminating layers with an air layer so that the sound-absorbing sheet surface is on the inside. FIG. 3 shows a cross-sectional view of the structure of an embodiment of the present invention, which includes a perforated plate and a closed cell-containing cell with a crosslinked viscoelastic body.
This is a vibration-damping and sound-insulating panel in which a mesh material is inserted between the L material and the l material. FIG. 4 shows a cross-sectional view of the construction of an embodiment of the present invention, and is a vibration-damping and sound-insulating panel in which a sound-absorbing sheet is not used in one of the vibration-damping and sound-insulating boards shown in FIG. FIG. 5 shows a cross-sectional view of the configuration of an embodiment of the present invention, and is a vibration-damping and sound-insulating panel in which the sound-insulating sorting of one of the vibration-damping and sound-insulating boards shown in FIG. 4 is not used. FIG. 6 shows a cross-sectional view of the configuration of an embodiment of the present invention, and one of the vibration damping and sound insulating boards in FIG. 4 is a composite panel made of a single layer board. FIGS. 7 and 8 are perspective views of a sheet base material containing a closed cell with a crosslinked viscoelastic body. FIG. 9 is an explanatory diagram of the apparatus in which the sound insulation performance was measured. ■...Closed cell-containing sheet base material with crosslinked viscoelastic material 2.
...Restraint material which is a plate-shaped body 3...Sound insulation sheet 4...Sound absorption sheet 5.
... Air layer 6 ... Perforated plate 7 ... Reticulated material 8 ... Closed cell body 9 ... Crosslinked viscoelastic body 10 ... Precision sound level meter 11 ... 1/3 octave analysis Instrument 12...High speed recorder 13...Sound source room 14.
...Sound receiving room 15...Sound source side microphone 16.
...Sound receiving side microphone 17...Speaker 18...
・Delete Noisy Field Zellator Figure 1, Figure 3, Figure 2, Figure 4, Procedures, Book 1, Specification, page 17, line 18. 2. "Made by rARDo Co., Ltd." in the first line of page 23 is corrected to "Made by rARco Co., Ltd. on May 31, 1989."

Claims (1)

[Claims] 1. A sheet base material containing a closed cell with a crosslinked viscoelastic body (C ) is laminated with a plate-like material as a restraining material (D), and on the other side is a vibration damping/sound insulating board (E) made by laminating a sound insulating sheet, a sound absorbing sheet, or a sound insulating sheet and a sound absorbing sheet. A vibration-damping and sound-insulating panel characterized in that it has a double structure with an air layer having a thickness of 20 to 200 mm so that the sound-absorbing sheet surface or the sound-insulating sheet surface is on the inside. 2. The closed cell-arranged base material (A) has a content of 0.00 per piece.
The convex part filled with 5 cc to 10 cc of gas to form a closed cell is heat-sealed or adhesive-bonded to a film-like object, a foamed sheet-like object, a sheet-like object, a cloth-like object, or a thread-like object, and forced by the thread-like object. The vibration-damping and sound-insulating panel according to claim 1, which is a base material having a configuration in which a countless number of base materials are connected at regular or irregular intervals using fixation. 3. The crosslinked viscoelastic body (B) undergoes a curing reaction at room temperature, and the product after the curing reaction retains its shape even when heated to 80°C, and has a hardness comparable to that of Nippon Rubber at 20°C. The vibration-damping and sound-insulating panel according to claim 1, which is a material that satisfies the three conditions of having a hardness of 50 or less on a type C hardness test defined by the association standard SRIS-0101. 4. The vibration-damping and sound-insulating panel according to claim 1, wherein the sound-insulating material is a self-adhesive, flame-retardant, sound-insulating sheet with a thickness of 1 mm or less, which is made of a sheet with a tolerance of 20 to 200 and a reinforcing base material. 5. The aperture ratio of the plate-shaped restraining material (D) is 3 to 40%, the plate thickness is 0.5 to 20 mm, and the area of one perforated part is 0.
．． The vibration-damping and sound-insulating panel according to claim 1, comprising a perforated plate having a diameter of 0.003 to 3.5 cm^2. 6. A diameter of 0.1 mm to 20 mm is provided between the perforated plate which is the restraining material (D) of the plate-like body and the crosslinked viscoelastic material-containing sheet base material (C).
6. The vibration-damping and sound-insulating panel according to claim 1, further comprising a net-like material having a diameter of 1 mm.