JPS5991244A - Sound blocking plate - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sound insulating plate coated with a sound insulating material.

Conventionally, sound insulation inside and outside buildings has been limited to the use of permanent sound insulation structures such as concrete walls, partitions with untreated or unprocessed boards, or thick curtains made of fabric. .

Therefore, it was not possible to achieve a sufficient sound insulation effect.

In view of these drawbacks, this invention coats a material with excellent sound insulation properties on the surface of wooden boards, synthetic resin boards, or metal boards (hereinafter simply referred to as boards) used for partitions, etc. of walls of buildings. By drying.

This provides a sound insulating board that is lightweight and convenient to handle.

Now, to explain one example, in the embodiment, 2 to 8 times the amount of fine particulate ferrite is added to Portland cement and mixed well, and to this, twice the amount of Portland cement is added. Add a cement mixing emulsion made of vinyl acetate, ethylene, vinyl chloride, etc., stir well, and apply by hand or by spraying, depending on the application method.
Add more water and knead it into a paste or paint.

This kneaded product was applied to plates to a thickness of about α2 to 2.04.

Dry and harden at room temperature.

In embodiment ■, the amount of portland cement is 3
Add 4 to 2 times the amount of inorganic, non-water-absorbing pearlite and 2 to 8 times the amount of Portland cement in fine particulate ferrite, mix well, and add 2 times the amount of Portland cement to the cement mixture. A resin emulsion is added and stirred thoroughly to form a mixed wire in the same manner as in the above-mentioned embodiment ①, and applied to boards to a thickness of zθ~10.0 to make a sound insulating board.

By the way, especially when applying this crosstalk to a metal plate such as a steel plate or a synthetic resin plate, it must be pretreated with a primer that increases adhesion to those plates.

This mixed material is applied, dried, and cured.

In this way, when a contaminant is applied to a board and dried, fine particulate ferrite adheres to the surface of the board in a uniform and tight layer as the Portland cement hardens. The reflectivity of the plates increases significantly. Moreover, since the synthetic resin emulsion for cement mixing is added to the kneaded material, there is little air entrainment during mixing, and this mixed material adheres tightly to the plates to prevent cracking.

Sound insulation is even higher.

In addition, in the embodiment, since pearlite is additionally added, the coating can be applied thicker to the plates than in the case of embodiment 1, so that the sound insulation properties can be further improved.

As mentioned above, in this invention, the crosstalk is attached to the board in layers, so the increase in weight is small and it is convenient to handle.Moreover, the sound insulation property is extremely high, so it is especially suitable for meetings and lectures. Used on partitions and surrounding walls of key venues such as rooms, hotels, wedding halls, and various work sites that generate noise, to prevent sounds from leaking from inside a room or work site, and to prevent noise from leaking outside. Since it can block out noise from other people, it can improve the efficiency of office functions and work, and since hardened Portland cement and ferrite are flame retardant, it also has a fire prevention effect. Therefore, it is extremely convenient.

Patent applicant: Fuji Transmission Co., Ltd. Representative Go
Jun- (1 other person) -3- Voluntary procedure amendment book 1982 June
Kazuo Wakasugi, Commissioner of the Japan Patent Office, dated March 3, 1998 Patent Application No. 201629, 2, Name of the invention Sound insulation board 3, Person making the amendment Relationship with the case Patent applicant's address (〒50
0) 18 Nakasu-cho, Gifu City Representative N Jun- ) Su- hiw ) a W Address (〒151) 4-30-7-4 Yoyogi, Shibuya-ku, Tokyo Subject of amendment ``3. In Column 5 of "Detailed Explanation", "About the 9th sound..." on page 1, line 20 of the detailed description of the amendment will be corrected to read "About sound insulation... Tsukasa."

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Claims (1)

[Claims] ■ A paste-like or paint-like mixed product made by mixing 2 to 8 times the amount of fine particulate Hueraot with Portland cement and adding and kneading it with twice the amount of a synthetic resin emulsion for cement mixing with Portland cement. The wooden board 9 synthetic resin board,
Or a sound insulating board that is coated evenly on a metal plate and allowed to dry. (2) The sound insulating board as claimed in claim 1, in which inorganic non-water absorbing perlite is added in an amount of % to twice that of portland cement to the mixer as claimed in claim 1.