JPS60239226A - Soundproof material and execution thereof - Google Patents

Soundproof material and execution thereof

Info

Publication number
JPS60239226A
JPS60239226A JP9599084A JP9599084A JPS60239226A JP S60239226 A JPS60239226 A JP S60239226A JP 9599084 A JP9599084 A JP 9599084A JP 9599084 A JP9599084 A JP 9599084A JP S60239226 A JPS60239226 A JP S60239226A
Authority
JP
Japan
Prior art keywords
asphalt
polyurethane foam
soundproofing material
impregnated
open cells
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9599084A
Other languages
Japanese (ja)
Inventor
Sadao Kumasaka
貞男 熊坂
Ryoji Nagamine
長嶺　亮二
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Human Industry Corp
Original Assignee
Human Industry Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Human Industry Corp filed Critical Human Industry Corp
Priority to JP9599084A priority Critical patent/JPS60239226A/en
Publication of JPS60239226A publication Critical patent/JPS60239226A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5618—Impregnating foam articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets

Abstract

PURPOSE:To elevate the sound absorptivity, sound insulating property, heat insulating property and the like by a method wherein a soft polyurethane foam sheet having open cells is impregnated with an asphalt emulsion and dried and then, compressed at the temperature below 30 deg.C. CONSTITUTION:As a soft polyurethane foam is impregnated with an asphalt emulsion and dried, after the infiltration of the asphalt emulsion into open cells of the polyurethane foam, water is lost by drying and a polyurethane foam is obtained which has asphalt particles attached to the inner wall surfaces of the open cells. The asphalt-impregnated urethane foam 10 thus obtained is cold pressed with a press machine kept below 30 deg.C and it is solidified as compressed owing to the stickiness of the asphalt particles contained inside to obtain a soundproof material 11 compressed very thin.

Description

【発明の詳細な説明】 本発明は自動車のボディー或いは建材パネル等の吸音性
および遮音性といった防音性を改善し、更ドは七〇青熱
性を改善するために用いられる防音材と、その施工方法
に関する。[Detailed Description of the Invention] The present invention relates to a soundproofing material used to improve the sound absorption and soundproofing properties of automobile bodies or building material panels, etc. Regarding the method.

自動車のボディー或いは建材パネルにおいては１例えば
第１図に示すように、２枚の鉄板或いはステンレス板等
の鋼材１ａ、１ｂで外殻を組み上げ、その内部空隙にポ
リウレタンフォーム、フェルト又はガラス繊維等のシー
トからなる防音材２を挿入して吸音性および遮音性を改
良し、更に断熱性を改善することが行なわれている。In the case of automobile bodies or building material panels, 1, for example, as shown in Figure 1, an outer shell is assembled from two steel plates 1a and 1b such as steel plates or stainless steel plates, and the inner cavity is filled with polyurethane foam, felt, glass fiber, etc. A sound insulating material 2 made of a sheet is inserted to improve sound absorption and insulation properties, and further improve heat insulation properties.

ところで、自動車の車体については最近特に軽量化が重
要視されているため、防音材２を挿入すべき鋼材１　ａ
、　ｌ　ｂ間の空隙も数麿■程度に狭くなって来ている
。その結果、このような狭い空隙内に防音材２を充填施
工する作業が困難となり、作業性の低下および生産性の
低下といった問題が生じている。By the way, recently, weight reduction has been particularly important in automobile bodies, so the steel material 1a into which the soundproofing material 2 should be inserted is
The gap between , l and b has also become narrower, to the order of a few square meters. As a result, it becomes difficult to fill and construct the soundproofing material 2 into such a narrow gap, resulting in problems such as a decrease in workability and a decrease in productivity.

本発明は上記事情に鑑みてなされたもので、狭い空隙内
にも容易に充填施工し得る防音材と、該防音材の施工方
法を提供するものである。The present invention has been made in view of the above circumstances, and provides a soundproofing material that can be easily filled into narrow spaces, and a method for applying the soundproofing material.

即ち１本発明による防音材は、連続気泡を有する軟質ポ
リウレタンフォームシートにアスファルトエマルジョン
を含浸させて乾燥し、更に３０℃以下の温度でプレスし
て圧縮したことを特徴とするものである。Specifically, the soundproofing material according to the present invention is characterized in that a flexible polyurethane foam sheet having open cells is impregnated with an asphalt emulsion, dried, and further compressed by pressing at a temperature of 30° C. or lower.

また、本発明による防音材の施工方法は、連続気泡を有
する軟質ポリウレタンフォームシートにアスファルトニ
ブルジョンを含浸させて乾燥し、更に３０℃以下の温度
でプレスして圧縮した防音材を、鋼板等の板材で構成さ
れた外殻の内部空隙内に該空隙よりも薄い厚さで挿入し
た後、これを加熱膨張させて前記空隙内に充満させるこ
とを特徴とするものである。In addition, the method of constructing the soundproofing material according to the present invention involves impregnating a flexible polyurethane foam sheet with open cells with asphalt nibble, drying it, and compressing the soundproofing material by pressing it at a temperature of 30°C or less. It is characterized in that it is inserted into an internal cavity of an outer shell made of a plate material to a thickness thinner than the cavity, and then heated and expanded to fill the cavity.

以下に本発明の詳細な説明する。The present invention will be explained in detail below.

本発明の防音材は、軟質ポリウレタンフシオームの弾力
性をアスファルト粒子の含浸によって抑制し、且つ該ア
スファルト粒子を含むポリウレタンフォームを冷間プレ
スすることにより一時的にその復元性を喪失させたもの
である。この本発明による防音材を製造するには、まず
軟質ポリウレタンフォームにアスファルトエマルジョン
を含浸させて乾燥する。これによって前記ポリウレタン
フォームの連続気泡中にアスファルトエマルジョンが侵
入した後、乾燥で水分を喪失するから、連続気泡の内部
壁面にアスファルト粒子が付着されたポリウレタンフォ
ームが得られる。こうして得られたアスファルト含浸ウ
レタンフオームは、気泡中に含まれるアスファルト粒子
によってその弾力性および復元力が一部喪失されている
。その後、第２図（Ａ）に示すように、上記得られたア
スファルト含浸ウレタンフオーム１０に対し、３０℃以
下の温度に保ったプレス機で冷間プレスを施す、これに
より、復元力を一部喪失している含浸ウレタンフオーム
ｌＯは内部に含まれるアスファルト粒子の粘結性によっ
て圧縮されたままの状態で固定され、同図（Ｂ）に示す
ように薄く圧縮された本発明による防音材１１が得られ
る。The soundproofing material of the present invention is made by suppressing the elasticity of soft polyurethane fusiome by impregnating it with asphalt particles, and temporarily losing its resilience by cold pressing the polyurethane foam containing the asphalt particles. be. To manufacture the soundproofing material according to the present invention, first, a flexible polyurethane foam is impregnated with an asphalt emulsion and dried. As a result, the asphalt emulsion penetrates into the open cells of the polyurethane foam and loses water through drying, resulting in a polyurethane foam in which asphalt particles are attached to the inner walls of the open cells. The asphalt-impregnated urethane foam thus obtained has partially lost its elasticity and restoring force due to the asphalt particles contained in the cells. Thereafter, as shown in FIG. 2(A), the asphalt-impregnated urethane foam 10 obtained above is subjected to cold pressing using a press machine kept at a temperature of 30°C or less, thereby partially reducing the restoring force. The impregnated urethane foam lO that has been lost is fixed in a compressed state due to the caking properties of the asphalt particles contained therein, and as shown in FIG. can get.

なお、本発明の防音材を製造する際、アスファルトエマ
ルジョンとしてはカチオン系あるいはアニオン系の界面
活性剤を使用してアスファルトを水中に機械的に攪拌、
分散させる等、公知のエマルジョン化技術により得られ
たものを用いればよい、この場合、アスファルトとして
は天然アスファルト、あるいはアスファルト基原油を蒸
留した残留物として得られるストレートアスファルト又
はこれに加熱空気を送入して酸化重合させたブローンア
スファルトの何れを用いても良いが、針入度の低いもの
の方が好ましい。In addition, when producing the soundproofing material of the present invention, asphalt emulsion is mechanically stirred in water using a cationic or anionic surfactant.
In this case, the asphalt may be natural asphalt, or straight asphalt obtained as a residue from distillation of asphalt-based crude oil, or by blowing heated air into this asphalt. Any blown asphalt that has been subjected to oxidative polymerization may be used, but one with a low penetration degree is preferable.

また、ポリウレタンフォームシートに対するアスファル
トエマルジョンの含浸量は、ポリウレタンフォームシー
ト１００重量部に対′シて１５０〜４００重量部程度が
望ましい。含浸後の乾燥は１２０℃〜１７０℃の湿度で
行なえばよい。The amount of asphalt emulsion impregnated into the polyurethane foam sheet is preferably about 150 to 400 parts by weight per 100 parts by weight of the polyurethane foam sheet. Drying after impregnation may be carried out at a humidity of 120°C to 170°C.

他方、アスファルト含浸ウレタンフオームｌＯを冷間プ
レスする際の加圧時間は、該含浸ウレタンフオーム１０
の厚さ及び圧縮率によって異なるが、大抵の場合は３〜
ｌＯ分程度でよい０通常の場合、前記含浸アスファルト
フオーム１０の厚さは２■■〜１０ｍｍ程度で、その圧
縮率は元の厚さの５０％〜９０％とする。On the other hand, the pressurization time when cold pressing the asphalt-impregnated urethane foam 10
It varies depending on the thickness and compression ratio, but in most cases it is 3~
In the normal case, the thickness of the impregnated asphalt foam 10 is about 2 mm to 10 mm, and the compression ratio is 50% to 90% of the original thickness.

上述のようにして得られた本発明の防音材は。The soundproofing material of the present invention obtained as described above is as follows.

通常の温度においてはウレタンフオームに特有の復元性
を喪失しているが、加熱されると元の厚さに復元する性
質を有している。このため、例えば自動車のボデー等に
施工する場合、本発明の施工方法を適用することによっ
て、鋼板等で構成された外殻の内部空隙が非常゛に狭い
場合でも極めて良好な作業性で充填施工することができ
る。At normal temperatures, it loses its restorability characteristic of urethane foam, but when heated, it has the property of restoring its original thickness. For this reason, when applying the construction method of the present invention to the body of a car, for example, even if the internal voids of the outer shell made of steel plates, etc. are extremely narrow, it can be filled with extremely good workability. can do.

即ち、本発明による防音材の施工方法にあっては、第３
図（Ａ）に示すように二枚の鋼材ｌａ　。That is, in the construction method of soundproofing material according to the present invention, the third
As shown in Figure (A), there are two steel sheets la.

１ｂで組み上げられた外殻の内部空隙内に、該空隙より
も薄い厚さで製造されている前記本発明による防音材ｊ
　ｌを挿入する。この作業は、従来のように空隙の厚さ
と略同しかそれよりもやや厚い防音材シートを挿入充填
する場合に比較して著しく容易で、作業性を向上するこ
とができる。その後、この挿入された防音材シート１１
を加熱すると、第３図ＣＢ）に示すように防音材シート
１１は膨張して外殻の内部空隙内に充満し、防音材とし
て所期の効果を奏し得る状態で施工されることになる。The soundproofing material j according to the present invention is manufactured within the internal void of the outer shell assembled in step 1b and has a thickness thinner than the void.
Insert l. This operation is significantly easier than the conventional case of inserting and filling a soundproofing material sheet that is approximately the same thickness as the gap or slightly thicker, and can improve workability. After that, this inserted soundproof material sheet 11
When heated, the soundproofing material sheet 11 expands and fills the internal void of the outer shell, as shown in FIG. 3CB), and is installed in a state where it can exhibit the desired effect as a soundproofing material.

このための加熱温度は、復元のための時間を考慮した場
合、１００〜１５０℃程度で充分である。The heating temperature for this purpose is approximately 100 to 150°C, taking into consideration the time for restoration.

なお、自動車ボディーの場合には防音材を挿入充填した
後に塗装や焼付は工程が行なわれ、挿入された防音材１
１はこれらの工程で充分に加熱されるから、本発明の施
工方法を適用する場合に特別の加熱方法を講じる必要は
ない。In the case of automobile bodies, the painting and baking processes are performed after inserting and filling the soundproofing material, and the inserted soundproofing material 1
1 is sufficiently heated in these steps, there is no need to use a special heating method when applying the construction method of the present invention.

上述のように、本発明によれば狭い内部空隙中に良好な
作業性で防音材シートを充填することができるから、防
音材施工の生産性を向上できる他、従来よりも優れた防
音効果を得ることができる。即ち、本発明による防音材
にはアスファルト粒子が含まれているため、従来使用さ
れているポリウレタンフォームシートよりも遮音性およ
び吸音性に優れており、外部からの振動や騒音に対する
共鳴効果を防止する上でもより大きな効果を奏すること
ができる。As mentioned above, according to the present invention, it is possible to fill a soundproofing material sheet into a narrow internal space with good workability, so it is possible to improve the productivity of soundproofing material construction and to achieve a soundproofing effect that is superior to that of the conventional method. Obtainable. That is, since the soundproofing material according to the present invention contains asphalt particles, it has better sound insulation and sound absorption properties than conventionally used polyurethane foam sheets, and prevents resonance effects from external vibrations and noise. You can achieve even greater effects on the above.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は自動車のボディー等に施工されている防音材を
示す断面図、第２図（Ａ）（Ｂ）は本発明の防音材を得
る方法を説明するための断面図、第３図（Ａ）（Ｂ）は
本発明による防音材の施工方法を説明するための断面図
である。Figure 1 is a sectional view showing a soundproofing material applied to the body of a car, etc., Figures 2(A) and (B) are sectional views for explaining the method of obtaining the soundproofing material of the present invention, and Figure 3 A) and (B) are cross-sectional views for explaining the method of constructing a soundproofing material according to the present invention.

Claims (2)

【特許請求の範囲】[Claims] （１）連続気泡を有する軟質ポリウレタンフォームシー
トにアスファルトエマルジョンを含浸させて乾燥し、更
に３０℃以下の温度でプレスして圧縮したことを特徴と
する防音材。(1) A soundproofing material characterized in that a flexible polyurethane foam sheet having open cells is impregnated with an asphalt emulsion, dried, and further compressed by pressing at a temperature of 30° C. or less. （２）連続気泡を有する軟質ポリウレタンフォームシー
トにアスファルトエマルジョンを含浸させて乾燥し、更
に３０℃以下の温度でプレスして圧縮した防音材を、鋼
板等の板材で構成された外殻の内部空隙内に該空隙より
も薄い厚さで挿入した後、これを加熱膨張させて前記空
隙内に充満させることを特徴とする防音材の施工方法。(2) A soundproofing material made by impregnating a flexible polyurethane foam sheet with open cells with asphalt emulsion, drying it, and compressing it by pressing at a temperature of 30°C or less is applied to the internal voids of the outer shell made of plate materials such as steel plates. 1. A method of constructing a soundproofing material, the method comprising: inserting the soundproofing material into the cavity to a thickness thinner than the cavity, and then heating and expanding the material to fill the cavity.
JP9599084A 1984-05-14 1984-05-14 Soundproof material and execution thereof Pending JPS60239226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9599084A JPS60239226A (en) 1984-05-14 1984-05-14 Soundproof material and execution thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9599084A JPS60239226A (en) 1984-05-14 1984-05-14 Soundproof material and execution thereof

Publications (1)

Publication Number Publication Date
JPS60239226A true JPS60239226A (en) 1985-11-28

Family

ID=14152566

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9599084A Pending JPS60239226A (en) 1984-05-14 1984-05-14 Soundproof material and execution thereof

Country Status (1)

Country Link
JP (1) JPS60239226A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01164641A (en) * 1987-12-21 1989-06-28 Toyota Motor Corp Thermosetting foam seal material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01164641A (en) * 1987-12-21 1989-06-28 Toyota Motor Corp Thermosetting foam seal material

Similar Documents

Publication Publication Date Title
EP0822379B1 (en) Mounted vacuum insulation panel and refrigerator element comprising such a mounted vacuum insulation panel
JPH0525118B2 (en)
WO2015056138A1 (en) Stable molded bodies or plates made of lightweight material for thermal insulation and for use as fire protection, method for the production thereof, use thereof, and building equipped therewith
CA1273178A (en) Method for producing panel-like structural elements and a prefabricated house
JPS60239226A (en) Soundproof material and execution thereof
SU604937A1 (en) Laminated panel
US2139882A (en) Floor structure
JPS61252239A (en) Production of thermally restorable sheet
JP3205654B2 (en) Laminated panel
WO2021206572A1 (en) Method of manufacturing vapor-permeable insulating panel and vapor-permeable insulating panel
JPS6248023B2 (en)
EP0906816A1 (en) Process for making industrially prefabricated wall elements
US1941769A (en) Impregnated fibrous block
HU225451B1 (en) Coated mineral wool product, and process for its production
CN220117636U (en) Heat-insulating anti-condensation indoor decorative board
JPS5841323Y2 (en) mortar base plate
JPH0762949A (en) Heat insulated composite structural angle
KR102241304B1 (en) Mixed insulating manufacturing method
US1564625A (en) Waterproof plaster board and method of producing same
JPS5927444Y2 (en) insulation waterproof board
JP2006052590A (en) Heat insulation panel used in common for form and heat insulation concrete skeleton structure using the same and its construction method
SU1730390A1 (en) Method for manufacturing three-layer panel
JPS6135603Y2 (en)
JPS6217237Y2 (en)
US1741760A (en) Insulating building material and method of making the same