588079 一 塞號‘ 五、發明說明（1) 發明背景： 本發明係 法及由上述方 裝複合吸隔音 度的特性，而 透氣性佳、彈 相關技術說明 汽車内部 提供舒適感等 著汽車配備不 另一項課題， 另一項發展重 習知汽車 與車體内部及 吸音性差，且 較浪費人力， ，且易剝落。 工程增加，降 體内部容易積 外再生棉的彈 生凹陷。因此 材。 本發明之 性佳、彈性強 30117412 λ_a. 曰No. 588079 No. 5 Description of the invention (1) Background of the invention: The present invention is based on the characteristics of the above-mentioned square compound composite sound absorption and sound absorption. Another subject, another development re-knowing that the interior and sound absorption of cars and car bodies is poor, is labor-intensive, and is easy to peel off. Projects increase, and it is easy to accumulate sags of recycled cotton inside the drop body. Therefore wood. The invention has good properties and strong elasticity. 30117412 λ_a.
有關於一種製備汽車内裝 法製備而成的複合吸隔音 材之方法具有降低製造成 其製備而成之複合吸隔音 性強度高、質量輕等優點 複合吸隔音材之方 材。此製備汽車内 本及減少組裝困難 材具有吸音性佳、 裝設之吸隔音材具有防震、防火、吸立、 功能，一般是由再生棉作為主要材料：而隨 斷增加，車體重量的控制成為汽車生產業= 因此重量輕也成為優良汽車内裝吸隔音材： 内裝吸隔材主要以再生棉製成，再藉由膠水 表層板材如地毯等貼合。其缺點是再生棉的 其本身材質極重，加上需要使用膠水，不但 且無法密貼車體’隔音差，易產生空箱共鳴 再者’使用膠水貼合不僅使環境污染，:使 低競爭力。而其透氣性不佳的特性也使得車 聚渥氣，降低舒適度及車體的使用壽命。另 性強度並不是很好，容易因重壓、踩踏而產〇 再生棉並不是一種非常理想的汽車内裝收音 一目的為提供一種製備具有吸音性佳、透氣 度高、質量輕、省 588079 Λ__Ά 修」 曰 案號 90117412 五、發明說明（2) 為了達到上述本發明之目的，本發明乃以異氰酸鹽發 泡棉與表層板材結合而製成内裝吸隔音材。其對低、中音 頻有較佳的吸音效果，提供車室極佳的寧靜度。二異氰酸 甲醋（isocyanate)發泡棉並具有足夠的彈性強度。 本發明之另一目的為提供一種由上述方法製備之汽車 内裝複合吸隔音材，其包含一發泡式正向吸音棉及一表層 板材。上述發泡式正向吸音棉係由聚醚多元醇（p〇ly〇1)及 二異氟酸甲酯組成；表層板材為橡膠或乙烯醋酸乙烯酯 (ethylene vinyl acetate，以下簡稱EVA),或其與地毯 i 之組合物。 ' ' 詳而言之，本發明之複合吸隔音材之製備方法包括下 列步驟：將聚多元醇、二異氰酸甲g旨、及水混合撥摔形 成:發泡混合物，此發泡混合物在成形過程中與一具有所 需π車内部形狀之表層板材接觸，經過高溫反應及高溫乾 燥後形成一與上述表層板材結合之發泡式正向吸音棉 ’得一汽車内裝之複合吸隔音材。 ，照本發明製品之一特徵，本發明不必使用粘合劑， ίίίϊΓ及音棉録層㈣經高溫反應及高溫乾燥即結 a而形成本發明之複合吸隔音材。 料，另一特徵，本發明使用二異氰酸曱醋作為原 劑之回收’ ^低’i以水作為催化劑，因而可減少有機溶 劑之口收’且不易造成環境污染。 配步閣明本發明之方法、架構及特，點，接下來 配合附圖作詳細敘述。 ^ 圖示簡要說明：The invention relates to a method for preparing a composite sound-absorbing sound insulation material prepared by an automobile interior decoration method, which has the advantages of reducing the manufacturing of the composite sound-absorbing sound insulation material, which has the advantages of high strength, light weight, and the like. The material used to prepare the interior and reduce assembly difficulties of the car has good sound absorption, and the installed sound-absorbing sound insulation material has shock resistance, fire prevention, vertical absorption, and functions. Generally, recycled cotton is used as the main material: as the weight increases, the weight of the car body is controlled. Become the automobile production industry = Therefore light weight also becomes an excellent automobile interior sound insulation material: The interior insulation material is mainly made of recycled cotton, and then laminated by glue surface sheet such as carpet. The disadvantage is that the material of recycled cotton is very heavy, and the need to use glue, not only can not closely adhere to the car body 'poor sound insulation, easy to generate empty box resonance, or' the use of glue bonding will not only cause environmental pollution, but also low competition force. And its poor air permeability also makes the car more concentrated, reducing the comfort and the life of the car body. The other strength is not very good, and it is easy to produce due to heavy pressure and stepping. Recycled cotton is not a very ideal car interior radio. The purpose is to provide a preparation with good sound absorption, high air permeability, light weight, and save 588079 Λ__Ά "Repair" Case No. 90117412 V. Description of the Invention (2) In order to achieve the above-mentioned object of the present invention, the present invention is made of an isocyanate foamed cotton and a surface layer board to form an interior sound-absorbing sound-absorbing material. It has a better sound absorption effect on low and middle frequencies, and provides excellent quietness in the cabin. Isocyanate foamed cotton has sufficient elastic strength. Another object of the present invention is to provide an automobile interior composite sound-absorbing material prepared by the above method, which comprises a foamed forward sound-absorbing cotton and a surface sheet. The above-mentioned foamed forward sound-absorbing cotton is composed of polyether polyol (p0ly〇1) and methyl diisofluorate; the surface layer is rubber or ethylene vinyl acetate (hereinafter referred to as EVA), or Its composition with carpet i. '' In detail, the method for preparing the composite sound-absorbing sound-absorbing material of the present invention includes the following steps: forming a polyhydric alcohol, methyl diisocyanate, and water to form a foaming mixture: During the forming process, it comes into contact with a surface sheet having the desired internal shape of the car, and after a high temperature reaction and high temperature drying, a foamed forward sound absorption cotton combined with the surface sheet is formed to obtain a composite sound-absorbing sound insulation material for the car. According to a feature of the product of the present invention, the present invention does not need to use an adhesive, and the compound of the present invention can be formed by the high temperature reaction and the high temperature drying to form a composite sound-absorbing sound-absorbing material according to the present invention. Material, another feature is that the present invention uses the diisocyanate acetic acid as the raw material for recycling ^ ^ low 'i using water as a catalyst, so that the oral intake of organic solvents can be reduced' and it is not easy to cause environmental pollution. The method, architecture, and features of the invention will be described in the following steps, which will be described in detail with reference to the drawings. ^ Brief description of the figure:
第5頁 0600-6573FWFl;chiumeow.ptc 588079 —-ΜΜί一90117412 年 月 日 修正 五、發明說明（4) 水與表層板材貼合的特性進一步降低組裝困難度及車體重 量。表層板材中，EVA及橡膠皆具防火性，該材料之複合 吸隔音材適用於擋火牆如頂蓬及前車箱的舖設；而車體底 部的部分則可使用以地毯為表層板材之複合吸隔音材。另 外正向吸音棉的製備過程中使用水為觸媒，有效地降低製 造成本及減少廢棄物。綜合以上優點，本發明之複合吸隔 材及其製備方法實為一新穎且極具工業價值之構想。 實施例 根據本發明之一實施例，一舖於後車箱底部之複合吸 隔音材之製作方法包含下列步驟：一地毯素材在18〇。〇烤 箱中預熱60秒後，於油壓機中油細秒，形成後車箱底部 :形狀’接者定位於一注入容器中；另一方面將1〇〇重 量份之聚醚多元醇及50重量份之二異氣酸甲醋與3至4重量 :之專用機中混合授拌8秒，得-發泡混合 :中發泡混合物注入上述成形表層板材定位於 ΐ由平：”内’在5〇。°至7〇t反應發泡成形5分鐘， ::由I醚多元醇及二異氰酸甲醋反應而成之正向吸音 後即可用於汽車此複合吸隔音材經水刀裁切 第本發明之複合吸隔音材與 :圖。：本圖可知本發明之複合吸隔音材具有較再生：： 良之吸音率，特別是餅中立 a丹名竿乂丹生棉優 為汽車内部組裝的理想材二。⑦好的吸音效果’確實 限定發：已以較佳實施例揭露如上，然其並非用以 離本發明=Page 5 0600-6573FWF1; chiumeow.ptc 588079 —-MΜί 一 90117412 Rev. V. Description of the invention (4) The characteristics of the bonding of water to the surface sheet further reduce the difficulty of assembly and the weight of the vehicle. In the surface sheet, EVA and rubber are both fire-resistant. The composite sound-absorbing material of this material is suitable for laying fire-resistant walls such as canopies and front trunks; and the bottom part of the car body can be used as a composite sheet with carpet as the surface sheet. Sound insulation. In addition, water is used as a catalyst in the preparation of forward sound-absorbing cotton, which can effectively reduce manufacturing costs and waste. Taking the above advantages into consideration, the composite absorbent material of the present invention and its preparation method are really a novel and highly industrial concept. Embodiments According to an embodiment of the present invention, a method for manufacturing a composite sound-absorbing sound-absorbing material laid on the bottom of a trunk includes the following steps: a carpet material is at 180. 〇 After preheating in the oven for 60 seconds, oil in the oil press for a few seconds to form the bottom of the trunk: the shape of the receiver is positioned in an injection container; on the other hand, 100 parts by weight of polyether polyol and 50 parts by weight No. 2 isobaric acid vinegar and 3 to 4 weight: mixed in a special machine for 8 seconds to obtain-foaming mixture: the middle foaming mixture is injected into the above-mentioned formed surface layer board. ° to 70t reaction foaming for 5 minutes, :: The forward sound absorption made from the reaction of I ether polyol and methyl diisocyanate can be used in automobiles. The composite sound-absorbing sound insulation material of the present invention and the figure :: This figure shows that the composite sound-absorbing sound insulation material of the present invention has relatively good regeneration: Good sound absorption rate, especially the cake neutral a Dan Minggan Dan Dan cotton is an ideal material for automobile interior assembly 2. Good sound-absorbing effect 'restricts the hair: it has been disclosed as above with the preferred embodiment, but it is not used to separate from the present invention =
0600-6573FWF1;chiumeow.ntr 第7頁 588079 案號90117412 年月日 修正0600-6573FWF1; chiumeow.ntr Page 7 588079 Case No. 90117412 Revised
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