201245385 六、發明說明： I【發明所屬之技術領域】 本發明是關於一種防水用雙面黏著帶。 【先前技術】 雙面黏著帶’是在黏貼至被著體之前利用衝孔加工就 可容易地加工成任意的形狀，被利用於固定各種產業領域 的零件。例如，手機終端、數位照相機等的電子機器的標 牌或是顯示部，是與電子機器的小型化一起做成小型化， 而成爲複雜的形狀之故，因而在此些之接合使用著雙面黏 著帶。 在此，做爲一例子，針對於在手機終端所使用的雙面 黏著帶，一面參照第3圖一面進行說明。在手機終端中， 液晶顯示元件被裝設於手機終端的筐體之內部，使丙烯樹 脂、玻璃等的透明原材料所形成的表面板，覆蓋液晶顯示 元件的方式被安裝於筐體。這時候，表面板是藉由被形成 於框形的雙面黏著帶被固定在筐體。 又，該雙面黏著帶是具有固定表面板與筐體之功能之 外，還具有防水與耐衝擊性及吸收衝擊的功能。亦即，防 止水自表面板與筐體之間浸入到手機終端的內部，而且對 於被施加於表面板的衝擊力，也不會使黏著帶損壞而吸收 其衝擊力，以防止表面板等的損傷。在固定手機終端之筐 體與表面板的雙面黏著帶，因被要求如上述的功能’因此 在先前技術是如被揭示於專利文獻1〜3，使用著以樹脂 -5- 201245385 的泡沫體做爲基材的雙面黏著帶。 專利文獻1日本特開20 1 0- 1 55969號公報 專利文獻2日本特開2009-1 083 1 4號公報 專利文獻3日本特開2009-084367號公報 容 內 明 發 因手機終端的液晶畫面是近幾年來逐漸大型化，因而 隨著此，被形成於框形的雙面黏著帶之寬度是寬度窄小化 (參照第4圖）。又，近年來，被要求將寬度做成 、甚至於被要求不足1 mm地做成窄小寬度的情形。然而 ，構成雙面黏著帶之基材的樹脂之泡沫體，是無法充分地 保證氣泡的最大直徑不足0.5mm之故，因而利用寬度窄 小化有損及雙面黏著帶的防水性之慮。 亦即，由放大表示第4圖中以圓形所包圍的A部分 的第5圖就可知，在氣泡的直徑存在著0.5 mm以上者的 情形，若有兩個氣泡相連結時，則藉由相連結的兩個氣泡 ，會形成將寬度1mm的雙面黏著帶朝向寬度方向貫通的 貫通孔之慮。若貫通孔被形成，則因經該貫通孔使水浸入 至手機終端內部之慮，因此會降低防水性。 因此，爲了保證雙面黏著帶所導致的防水性，雙面黏 著帶的寬度是必須比泡沫體的氣泡直徑的兩倍還要大之必 要性，惟基材的所有寬度，所有長度上，或是批或品質的 參差不齊上，使氣泡的最大直徑爲不足〇.5mm，且所形成 -6- 201245385 的氣泡能保證100%都是獨立氣泡的泡沫體基材至今並不 荏在。所以，只要做爲基材使用泡沫體，並無法充分地對 應於所謂寬度1 mm，甚至於不足1 mm的寬度窄小化的要 求。由此些情況，在手機終端的液晶畫面的大型化，也會 產生障礙。 如此，本發明是解決如上述的習知技術所具有的問題 ’提供一種即使寬度窄小化也不會降低防水性，且耐衝擊 性及衝擊吸收性上優異的防水用雙面黏著帶做爲課題。 本發明人等，爲了解決上述課題，專心檢討即使寬度 窄小化也能並存防水性與耐衝擊性及衝擊吸收性的泡沫體 以外之基材的結果，而達成本發明。本案發明是如下所構 成。亦即，本發明的一種防水用雙面黏著帶，其特徵爲： 具備：基材、及黏著層；該基材是彈性體的非泡沬體所形 成’該黏著層是由黏著劑所形成且配置於上述基材的表背 雙面。 此種本發明的防水用雙面黏著帶，是可使用於攜帶裝 置或是屋外設置型顯示裝置。 本發明的防水用雙面黏著帶，是將彈性體的非泡沫體 使用做爲基材之故，因而即使寬度窄小化也不會降低防水 性，且耐衝擊性及衝擊吸收性上也優異。 【實施方式】 一面參照圖式一面詳述本發明的防水用雙面黏著帶的 實旌形態。第1圖是用以說明本發明的防水用雙面黏著帶 201245385 的一實施形態的構造的斷面圖（以正交於防水用雙面黏著 帶的長度方向的平面所切剖的斷面圖）。 本實施形態的防水用雙面黏著帶，是基材3以彈性體 的非泡沫體所形成。該基材3，是施以如電暈處理或電漿 處理的表面處理加工者也可以，或是塗布增黏塗層（ anchor coat )劑者也可以。於是，在該基材3的表背雙面 ，設有黏著劑的黏著層2、4。又，在黏著層2、4之上面 ，各別層積有剝離襯墊1 ' 5。還有，如第1圖所示地， 本實施形態的防水用雙面黏著帶，是在單面被施以剝離處 理的剝離襯墊1、5被層積於表背表面，惟如第2圖的變 形例所示地，在雙面被施以剝離處理的剝離襯墊6僅被層 積於單面也可以。 本實施形態的防水用雙面黏著帶的基材3，是以彈性 體的非泡沫體所形成之故，因而未具備氣泡。因此，即使 將防水用雙面黏著帶寬度窄小化做成如1 m m以下，也不 會利用氣泡來形成朝向寬度方向貫通防水用雙面黏著帶的 貫通孔之慮之故’因而不會降低防水用雙面黏著帶的防水 性。又’基材3以彈性體所形成之故，因而耐衝擊性及衝 擊吸收性上優異。 因具有此種優異的性能，因此，本實施形態的防水用 雙面黏著帶’是可利用於固定各種產業領域上的零件，尤 其是’最合適於固定如電子機器等被要求防水性的機器之 零件。例如’攜帶裝置或是屋外設置型顯示裝置，是因與 雨水等的水接觸的可能性高，因此被要求防水性，惟使用 -8 - 201245385 本實施形態的防水用雙面黏著帶來進行零件的固定，則在 該機器可給予優異的防水性。 攜帶裝置的種類，是若通常爲攜帶搬運所使用之型式 的電子機器，並沒有特別加以限制者，惟做爲該例子，有 手機終端等的攜帶式通信終端、數位照相機、錄影機等的 攜帶式錄影裝置、攜帶式音樂再生裝置、手提式電視機、 筆記型個人電腦、攜帶式遊戲機、電子辭典等。 在此，一面參照第3圖一面說明將本實施形態的防水 用雙面黏著帶使用於固定手機終端的零件的例子。但是， 針對於與在先前技術之項目及發明欲解決的課題之項目中 所說明的內容重複之部分，則省略了說明。 首先，以模具衝孔防水用雙面黏著帶，框形地所形成 。這時候，防水用雙面黏著帶之寬度是做爲1mm。使用 該框形地被形成的防水用雙面黏著帶，如第3圖所示地， 將表面板固定於手機終端的筐體。 該防水用雙面黏著帶，是基材3以彈性體的非泡沫體 所構成，未具備氣泡之故，因而防水性上優異。因此，水 由表面板與筐體之間浸入至手機終端之內部的情況被防止 。如此地，若使用本實施形態的防水用雙面黏著帶，則即 使將使用於固定防水用雙面黏著帶的寬度做成寬度窄小化 也不會降低防水性之故，因而利用防水用雙面黏著帶的寬 度窄小化有助於手機終端的液晶畫面的大型化。又，本實 施形態的防水用雙面黏著帶，其基材3以彈性體所構成之 故，因而也具有所謂耐衝擊及吸收衝擊的功能。亦即，發 -9 - 201245385 揮耐於施加於表面板的衝擊力，且吸收其衝擊力來防止表 面板等的損傷的效果。 在此，針對於本實施形態的防水用雙面黏著帶，更詳 細地說明。首先，針對於基材3進行說明。 基材3是由彈性體所成的片。彈性體的種類是並未特 別地加以限制者，惟例如有硫化橡膠、所謂熱硬化性樹脂 系彈性體的熱硬化性彈性體或是熱可塑性彈性體等。具體 而言，聚矽氧橡膠、氨基甲酸乙酯橡膠、丁基橡膠、乙丙 橡膠（EPDM ) 、丁腈橡膠（NBR )、苯乙烯與丁二烯的 嵌段共聚物（SBR)、含氟橡膠、乙烯-乙酸乙烯共聚物 (EVA )彈性體、於聚烯微分散乙丙橡膠（EPDM )者較 佳，而在此些中，EPDM或是EVA彈性體較佳。此些彈 性體是使用單獨1種也可以，或是使用混合兩種彈性體也 可以，或是使用1種類或兩種類以上的彈性體的層積物也 可以。又，若爲彈性材料，則也可將彈性體以外之材料的 非泡沬體所形成的片使用做爲基材3。 基材3的厚度是並未特別加以限制者，惟欲將表面板 固定於手機終端的筐體時，則以50//m以上l〇〇〇em以下 較理想。 又，彈性體的硬度是並未特別加以限制者，依目的或 是用途等適當地設定就可以。 還有，做爲彈性體使用橡膠時，則硫化橡膠或未硫化 橡膠的任一種都無問題地可使用’依目的或用途等適當地 選擇就可以。但是，考慮到耐環境性（耐光性等）或蠕變 -10 - 201245385 (creep )性能，則以硫化橡膠者較理想。 還有，彈性體是無色也可以，或是有色也可以。又， 透明（光線透射性）也可以，不透明（光線不透射性）也 可以。著色於彈性體的方法是並未特別加以限制者，惟在 彈性體所形成的片的表面利用印刷法等設置塗膜也可以， 或是在彈性體本體混合著色料、顏料、染料等也可以。 還有，在彈性體是依所盼望混合添加劑也可以。例如 混合老化防止劑也可以。 還有’彈性體所形成的片之表面，是平滑者較理想， 惟藉由目的或是用途上設置多數微細的凹凸也可以。 以下，針對於構成黏著層2、4的黏著劑加以說明。 構;成黏著層2、4的黏著劑的種類是並未特別加以限制者 ’惟例如有丙烯系黏著劑、聚氧矽系黏著劑、氨基甲酸乙 酯系黏著劑、醚系黏著劑、橡膠系黏著劑。使用熱熔式的 黏著劑也無妨。但是，考慮到耐熱性、耐環境性、成本上 ’則以丙烯系黏著劑較理想，而以乙基丙烯酯（EA )、 丁基丙烯酯（BA) 、2-乙基己丙烯酯（2-EHA)等做爲主 要成分的丙烯系黏著劑較理想。又，構成黏著劑2的黏著 劑與構成黏著劑4的黏著劑，是同種也可以或是不同種也 可以。 又’黏著層2、4的厚度是並未特別加以限制者，惟 各別2 // m以上200 v m以下較理想。又，黏著層2的厚 度與黏著層4的厚度，是相同也可以，或是不相同也可以 -11 - 201245385 還有，黏著劑是交聯型者、或是未交聯型者的任一種 都無問題地可使用，依目的或是用途等適當地選擇就可以 。但是，考慮到耐環境性（耐光性等）或蠕變性能，則以 交聯型者較理想。 還有，黏著劑是無色也可以，或有色也可以。又，透 明（光線透射性）也可以，不透明（光線不透射性）也可 以。著色於黏著劑的方法是並未特別加以限制者，惟在黏 著劑混合著色料、顏料、染料等也可以。 還有，在黏著劑是依所盼望混合添加劑也可以。例如 混合老化防止劑也可以。 以下，針對於剝離襯墊1、5、6加以說明。剝離襯墊 1、5、6的材質是並末特別地加以限制者，惟可使用紙或 樹脂薄膜。在剝離襯墊1、5、6，有剝離處理施加於單面 或是雙面。第2圖的防水用雙面黏著帶的情形，是有剝離 處理施加於剝離襯墊6的雙面。 又，防水用雙面黏著帶的長度是並未特別加以限制者 ，帶狀的長狀物也可以，因應於用途的長度或是形狀的薄 長方形物（片狀物）也可以。 以下，針對於防水用雙面黏著帶的製造方法，以第1 圖的防水用雙面黏著帶的情形做爲例子加以說明。 首先，在剝離襯墊1的剝離處理面塗布例如丙烯系黏 著劑並經乾燥，以形成黏著層2。塗敷方法是並未特別加 以限制者，毫無問題地可採用浸塗法、軋輥塗層法、幕式 淋塗法、模具塗法、縫隙塗法等的公知方法。之後，在黏 -12- 201245385 著層2上層積例如EPDM橡膠片所形成的基材3’做爲3 層構造物。一方面，在剝離襯墊5的剝離處理面塗布例如 丙烯系黏著劑並經乾燥，以形成黏著層4。之後’在黏著 層4上，使基材3與黏著層4接觸的方式層積上述3層構 造物，做爲5層構造的防水用雙面黏著帶。 又，第1圖的防水用雙面黏著帶，是如下述地可製造 出。 首先，在剝離襯墊1的剝離處理面塗布例如丙烯系黏 著劑並經乾燥，以形成黏著層2。之後’在黏著層2上面 層積例如EPDM橡膠片所形成的基材3，做爲3層構造物 。在與設有該3層構造物的基材3的黏著層2之一面相反 側之一面，塗布例如丙烯系黏著劑並經乾燥，以形成黏著 層4。之後，在黏著層4上面層積剝離襯墊5’做爲5層 構造的防水用雙面黏著帶。 又，第1圖的防水用雙面黏著帶，是如下述地可製造 出。 在例如E P D Μ橡膠片所成的基材3，塗布例如丙烯系 黏著劑並經乾燥，以形成黏著層2。之後，在黏著層2上 層積例如剝離襯墊1，做爲3層構造物。在與該3層構造 物的基材3的黏著層2之形成面相反面，塗布例如丙烯系 黏著劑並經乾燥，以形成黏著層4。之後，在黏著層4上 層積剝離襯墊5，做爲5層構造的防水用雙面黏著帶。 又，第2圖的防水用雙面黏著帶，是如下述地可製造 出3 -13- 201245385 首先，在兩面施以剝離處理的剝離襯墊6的一方之一 面，塗布例如丙烯系黏著劑並經乾燥，以形成黏著層2。 之後，在黏著層2上面層積例如EPDM橡膠片所形成的基 材3,做爲3層構造物。然後，在與設有基材3的黏著層 2之一面相反側之一面，塗布例如丙烯系黏著劑並經乾燥 ，以形成黏著層4,做爲4層構造的防水用雙面黏著帶。 又，第2圖的防水用雙面黏著帶，是如下述地可製造 出。 首先，在例如EPDM橡膠片所形成的基材3的一方之 一面，塗布例如丙烯系黏著劑並經乾燥，以形成黏著層2 。之後，在黏著層2上層積例如剝離襯墊6，做爲3層構 造物。然後，在與設有基材3的黏著層2之一面相反側之 —面，塗布例如丙烯系黏著劑並經乾燥，以形成黏著層4 ，做爲4層構造的防水用雙面黏著帶。 [實施例] 針對於本發明的防水用雙面黏著帶的組成，藉由贲施 例具體地加以說明。但是，本發明的防水用雙面黏著帶是 並不被限定於此者。 [實施例1 ] 將對於丙烯系黏著劑溶液（日本電石工業股份有限公 司所製，「尼些」KP-2514) 100質量部添加異氰酸酯系交 聯劑（日本電石工業股份有限公司所製，C K-1 1 7 ) 0.2 5 -14- 201245385 質量部的黏著劑溶液’使用調節塗料器（doctor coater) 進行塗布於剝離襯墊’之後，在大約1 1 〇°c下進行乾燥以 形成厚度50/zm的黏著劑層。 在形成於該剝離襯墊的黏著劑層之上，黏貼表面經電 暈處理的EPDM橡膠片（厚度l〇〇ym、抗拉強度lOMPa 、延伸率440%)，以製作單面黏著帶。然後，做成與上 述同樣，在剝離襯墊上形成厚度50 y m的黏著劑層，並 在單面黏著帶的EPDM橡膠片側黏貼該黏著劑層，以製作 雙面黏著帶。 [實施例2 ] 除了使用氨基甲酸乙酯橡膠片（厚度l〇〇vm、抗拉 強度40MPa、延伸率750% )代替EPDM橡膠片之外，做 成與實施例1同樣，以製作雙面黏著帶。 [實施例3] 除了使用EVA彈性體片（厚度1 〇〇# m、抗拉強度 14MPa、延伸率440% )代替EPDM橡膠片之外，做成與 實施例1同樣，以製作雙面黏著帶。 [比較例1] 除了使用聚乙烯（PE)泡沫體基材（厚度100/zm、 抗拉強度8MPa、延伸率600%)代替EPDM橡膠片之外 ，做成與實施例1同樣，以製作雙面黏著帶。 -15- 201245385 針對於所得到的各個雙面黏著帶，使用記載於以下的 試驗方法進行評價。 (防水性試驗） 依據IPX7規格（JIS C 0920 /IEC60529)進行試驗。 將雙面黏著帶經沖孔成爲外形50mmxl00mm、寬度0.9mm 、1mm、或是 2mm的框模子，夾持在外形 60mmxl20mm 的2枚丙烯板，載著質量lkg的負荷之下在23 °C置放24 小時者做爲試驗片。 將該試驗片置放於深度lm的水中30分鐘之後，取 出試驗片，來評價有無浸水至框模子的雙面黏著帶之內側 (衝擊吸收性試驗） 將雙面黏著帶經沖孔成爲外形25mmx25mm、寬度 0.9mm、1mm、或是 2mm的框模子，夾持在外形 50mmx 5 0mm的2枚丙烯板，載著質量lkg的負荷之下在23 °C置 放24小時者做爲試驗片。在該試驗片的中央從高度 15 0mm的位置掉落質量I6g的鐵球，來測定試驗片的衝 擊力。在測定衝擊力使用加速度計（日本昭和測器股份有 限公司所製 23 04A)，加速度計是設置於掉落鐵球之一 面的相反面。 做爲評價方法，著重於如第6圖所示地被測定的加速 度的衰減曲線的第1波的峰値高度，其峰値高度愈低，做 -16- 201245385 爲愈吸收衝擊者。 在表1表示評價結果。由表1可明瞭，具備彈 非泡沫體基材的實施例1〜3的雙面黏著帶，是與 知的泡沬體基材的比較例1的雙面黏著帶相比較， 使寬度窄小化也具有優異的防水性與衝擊吸收性。 (耐衝擊性試驗） 將雙面黏著帶經沖孔成爲外形50mmxl00mm 0.9mm、lmm、或是2mm的框模子，夾持在外形 12 0mm的2枚丙烯板，載著質量lkg的負荷之下; 置放24小時者做爲試驗片。將該試驗片從高度1 置掉落至混凝土製的底面上，來測定試驗片被分離 掉落次數。 性體的 具備習 可知即 、寬度 60mm X t 2 3〇C η的位 爲止的 -17- 201245385 m 丨臓例1 1___ PE泡沬體 CNJ m 1900 σ> 1950 CO 〇> 1950 CO 實施例3 EVA彈性體 CM 摧 2050 in 壊 2150 σ> 〇> 摧 2150 ο 實施例2 氨基甲酸乙酯橡膠 CM 摧 2100 (D T-· 摧 2200 ________ σ> σ> 摧 2200 σ> 實施例1 I EPDM橡膠 CM 璀 1600 g y^· 摧 1650 CO CO σ> m 1650 00 CO nn 基材種類 帶寬〔mm〕 防水性試驗〔有無浸水〕 衝擊吸收性試驗〔m/s2〕 耐衝擊性試驗〔次〕 -18 - 201245385 【圖式簡單說明】 第1圖是用以說明本發明的防水用雙面黏著帶的一實 施形態的構造的斷面圖。 第2圖是用以說明第1圖的防水用雙面黏著帶的變形 例的構造的斷面圖。 第3圖是手機終端的主要部分的分解立體圖。 第4圖是用以說明形成於框形的雙面黏著帶的寬度窄 小化的模式圖。 第5圖是第4圖的A部分的放大圖。 第6圖是衝擊吸收性試驗的測定資料的模式圖。 【主要元件符號說明】 1 :剝離襯墊 2 :黏著層 3 :基材 4 :黏著層 5 :剝離襯墊 6 :剝離襯墊 -19-201245385 VI. Description of the invention: I [Technical field to which the invention pertains] The present invention relates to a double-sided adhesive tape for waterproofing. [Prior Art] The double-sided adhesive tape ' can be easily processed into an arbitrary shape by punching before being stuck to the object, and is used for fixing various parts of various industrial fields. For example, the signage or the display unit of an electronic device such as a mobile phone terminal or a digital camera is miniaturized together with the miniaturization of the electronic device, and becomes a complicated shape. Therefore, the double-sided adhesive is used for the joints. band. Here, as an example, the double-sided adhesive tape used in the mobile phone terminal will be described with reference to Fig. 3 . In the mobile phone terminal, the liquid crystal display element is mounted inside the casing of the mobile phone terminal, and a surface plate formed of a transparent material such as acryl resin or glass is attached to the casing so as to cover the liquid crystal display element. At this time, the surface plate is fixed to the casing by a double-sided adhesive tape formed in a frame shape. Further, the double-sided adhesive tape has the functions of fixing the surface plate and the casing, and also has the functions of waterproofing, impact resistance and impact absorption. That is, the water is prevented from immersing into the inside of the mobile phone terminal from the surface plate and the casing, and the impact force applied to the surface plate does not damage the adhesive tape and absorb the impact force to prevent the surface plate or the like. damage. The double-sided adhesive tape of the casing and the surface plate of the fixed mobile phone terminal is required to function as described above. Therefore, in the prior art, as disclosed in Patent Documents 1 to 3, a foam of Resin-5-201245385 is used. Double-sided adhesive tape as a substrate. Patent Document 1 Japanese Patent Laid-Open Publication No. JP-A No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. 2009-084367. In recent years, the size of the double-sided adhesive tape formed in the frame shape has been narrowed (see FIG. 4). Further, in recent years, it has been required to make the width into a narrow width even when it is required to be less than 1 mm. However, the resin foam constituting the base material of the double-sided adhesive tape cannot sufficiently ensure that the maximum diameter of the air bubbles is less than 0.5 mm. Therefore, the narrowness of the width is used to impair the waterproof property of the double-sided adhesive tape. That is, as shown in the fifth diagram of the A portion surrounded by a circle in Fig. 4, it can be seen that when the diameter of the bubble is 0.5 mm or more, if two bubbles are connected, The two air bubbles connected to each other form a through hole that penetrates the double-sided adhesive tape having a width of 1 mm in the width direction. When the through hole is formed, water is infiltrated into the inside of the mobile phone terminal through the through hole, so that the waterproof property is lowered. Therefore, in order to ensure the waterproofness caused by the double-sided adhesive tape, the width of the double-sided adhesive tape must be greater than twice the diameter of the foam of the foam, but all the widths of the substrate, all lengths, or It is the unevenness of the batch or the quality, so that the maximum diameter of the bubble is less than 〇5 mm, and the bubble formed by the bubble of -6-201245385 can ensure that 100% of the foam substrate is a closed cell. Therefore, as long as the foam is used as the substrate, it does not sufficiently correspond to the requirement of a so-called width of 1 mm or even a width of less than 1 mm. In such a case, an increase in the size of the liquid crystal screen of the mobile phone terminal may also cause an obstacle. As described above, the present invention solves the problem of the above-described conventional technique, and provides a waterproof double-sided adhesive tape which does not reduce water repellency even when the width is narrow, and which is excellent in impact resistance and impact absorption. Question. In order to solve the above problems, the inventors of the present invention have achieved the present invention by focusing on the results of a substrate other than the foam which can retain water repellency, impact resistance and impact absorbability even when the width is narrow. The invention of the present invention is constructed as follows. That is, the double-sided adhesive tape for waterproofing according to the present invention is characterized in that it comprises: a substrate and an adhesive layer; the substrate is formed of an elastomeric non-foamed body. The adhesive layer is formed of an adhesive. And disposed on both sides of the front and back of the above substrate. The double-sided adhesive tape for waterproofing of the present invention can be used for a portable device or an outdoor display type display device. The double-sided adhesive tape for waterproofing of the present invention uses the non-foaming body of the elastomer as a base material, so that the water repellency is not lowered even if the width is narrow, and the impact resistance and impact absorption are excellent. . [Embodiment] The actual form of the double-sided adhesive tape for waterproofing of the present invention will be described in detail with reference to the drawings. 1 is a cross-sectional view showing a structure of an embodiment of a double-sided adhesive tape for waterproofing of the present invention 201245385 (a cross-sectional view taken along a plane orthogonal to the longitudinal direction of the double-sided adhesive tape for waterproofing) ). In the double-sided adhesive tape for waterproofing of the present embodiment, the base material 3 is formed of an elastic non-foamed body. The substrate 3 may be a surface treatment processor such as corona treatment or plasma treatment, or may be coated with an anchor coat agent. Thus, adhesive layers 2 and 4 of an adhesive are provided on both sides of the front and back of the substrate 3. Further, on the upper surfaces of the adhesive layers 2, 4, a release liner 1 '5 is laminated. Further, as shown in Fig. 1, the double-sided adhesive tape for waterproofing of the present embodiment is a release liner 1 and 5 which are subjected to a release treatment on one side, and is laminated on the front and back surfaces, as in the second. As shown in the modified example of the figure, the release liner 6 which is subjected to the release treatment on both sides may be laminated on only one side. The base material 3 of the double-sided adhesive tape for waterproofing of the present embodiment is formed of an elastic non-foamed body, and thus does not have air bubbles. Therefore, even if the width of the double-sided adhesive tape for waterproofing is made smaller than 1 mm, the air bubbles are not formed by the through holes of the double-sided adhesive tape for waterproofing in the width direction. Waterproof with double-sided adhesive tape for waterproofing. Further, the base material 3 is formed of an elastomer, and thus is excellent in impact resistance and impact absorbability. Because of such excellent performance, the double-sided adhesive tape for waterproofing of the present embodiment is a component that can be used for fixing various industrial fields, and is particularly suitable for fixing a machine that is required to be waterproof such as an electronic device. Parts. For example, the 'portable device or the outdoor display type display device is required to be in contact with water such as rainwater. Therefore, it is required to be waterproof. However, the waterproof double-sided adhesive tape of the present embodiment is used in -8 - 201245385. The fixing is excellent in water repellency in this machine. The type of the portable device is a type of electronic device that is usually used for carrying and transporting, and is not particularly limited. However, as an example, there is a portable communication terminal such as a mobile phone terminal, a digital camera, a video recorder, or the like. Video recording device, portable music reproducing device, portable television, notebook personal computer, portable game machine, electronic dictionary, and the like. Here, an example in which the waterproof double-sided adhesive tape of the present embodiment is used for a component of a fixed mobile phone terminal will be described with reference to Fig. 3 . However, the description of the parts overlapping with the items of the prior art and the items to be solved by the invention is omitted. First, the double-sided adhesive tape for punching and waterproofing is formed in a frame shape. At this time, the width of the double-sided adhesive tape for waterproofing is 1 mm. The double-sided adhesive tape for waterproofing formed in this frame shape is used to fix the surface plate to the casing of the mobile phone terminal as shown in Fig. 3. In the double-sided adhesive tape for waterproofing, the base material 3 is made of an elastic non-foaming body, and is not provided with air bubbles, so that it is excellent in water repellency. Therefore, the water is prevented from being immersed between the surface plate and the casing to the inside of the mobile phone terminal. In this way, when the double-sided adhesive tape for waterproofing of the present embodiment is used, even if the width of the double-sided adhesive tape for waterproofing is narrowed, the waterproof property is not lowered, so that the waterproof double is used. The narrowing of the width of the surface adhesive tape contributes to an increase in the size of the liquid crystal screen of the mobile phone terminal. Further, in the double-sided adhesive tape for waterproofing of the present embodiment, since the base material 3 is made of an elastic body, it has a function of impact resistance and impact absorption. That is, the hair -9 - 201245385 is resistant to the impact force applied to the surface plate, and absorbs the impact force to prevent the damage of the surface panel or the like. Here, the double-sided adhesive tape for waterproofing of this embodiment will be described in more detail. First, the substrate 3 will be described. The substrate 3 is a sheet made of an elastomer. The type of the elastomer is not particularly limited, and examples thereof include a vulcanized rubber, a thermosetting elastomer of a thermosetting resin-based elastomer, or a thermoplastic elastomer. Specifically, polyoxyethylene rubber, urethane rubber, butyl rubber, ethylene propylene rubber (EPDM), nitrile rubber (NBR), block copolymer of styrene and butadiene (SBR), fluorine-containing Rubber, ethylene-vinyl acetate copolymer (EVA) elastomers, and polyene microdispersion ethylene propylene rubber (EPDM) are preferred, and among these, EPDM or EVA elastomers are preferred. These elastic bodies may be used singly or in combination of two kinds of elastomers, or a laminate of one type or two or more types of elastomers. Further, in the case of an elastic material, a sheet formed of a non-foamed body of a material other than the elastomer may be used as the substrate 3. The thickness of the substrate 3 is not particularly limited. However, when the surface plate is to be fixed to the casing of the mobile phone terminal, it is preferably 50//m or more and l〇〇〇em or less. Further, the hardness of the elastomer is not particularly limited, and may be appropriately set depending on the purpose or use. In addition, when rubber is used as the elastomer, any of the vulcanized rubber or the unvulcanized rubber can be used without any problem, and it can be appropriately selected depending on the purpose, use, and the like. However, in view of environmental resistance (light resistance, etc.) or creep -10 - 201245385 (creep) performance, it is preferable to use a vulcanized rubber. Also, the elastomer is colorless or colored. Further, it may be transparent (light transmissive) or opaque (light transmissive). The method of coloring the elastomer is not particularly limited, but the surface of the sheet formed of the elastomer may be provided by a printing method or the like, or the coloring material, the pigment, the dye, etc. may be mixed in the body of the elastomer. . Also, it is also possible to mix the additives in the elastomer as desired. For example, a mixed aging preventive agent may also be used. Further, it is preferable that the surface of the sheet formed of the elastomer is smooth, and it is also possible to provide a plurality of fine irregularities by purpose or use. Hereinafter, the adhesive constituting the adhesive layers 2 and 4 will be described. The type of the adhesive to form the adhesive layers 2 and 4 is not particularly limited. For example, there are a propylene-based adhesive, a polyoxyn-based adhesive, a urethane-based adhesive, an ether-based adhesive, and a rubber. Adhesive. It is also possible to use a hot melt adhesive. However, in view of heat resistance, environmental resistance, and cost, it is preferable to use a propylene-based adhesive, and ethyl acrylate (EA), butyl acrylate (BA), and 2-ethylhexyl acrylate (2). A propylene-based adhesive which is a main component such as -EHA) is preferred. Further, the adhesive constituting the adhesive 2 and the adhesive constituting the adhesive 4 may be of the same kind or different types. Further, the thickness of the adhesive layers 2 and 4 is not particularly limited, but it is preferably 2 // m or more and 200 v m or less. Further, the thickness of the adhesive layer 2 may be the same as or different from the thickness of the adhesive layer 4, or may be different. -11 - 201245385 Also, the adhesive is either a crosslinked type or an uncrosslinked type. It can be used without problems, and it can be appropriately selected depending on the purpose or use. However, in view of environmental resistance (light resistance, etc.) or creep properties, it is preferred to use a crosslinked type. Also, the adhesive is colorless or colored. Further, transparency (light transmittance) may be used, and opacity (light transmission) may also be used. The method of coloring the adhesive is not particularly limited, but a coloring agent, a pigment, a dye, or the like may be mixed in the adhesive. Also, it is also possible to add an additive as desired in the adhesive. For example, a mixed aging preventive agent may also be used. Hereinafter, the release liners 1, 5, and 6 will be described. The material of the release liners 1, 5, and 6 is specifically limited in the end, but paper or a resin film can be used. In the release liners 1, 5, and 6, there are peeling treatments applied to one side or both sides. In the case of the double-sided adhesive tape for waterproofing of Fig. 2, the peeling treatment is applied to both sides of the release liner 6. Further, the length of the double-sided adhesive tape for waterproofing is not particularly limited, and a long strip-shaped shape may be used, and a thin rectangular shape (sheet) may be used depending on the length or shape of the application. Hereinafter, the method of manufacturing the double-sided adhesive tape for waterproofing will be described by taking the case of the double-sided adhesive tape for waterproofing of Fig. 1 as an example. First, for example, a propylene-based adhesive is applied to the release-treated surface of the release liner 1 and dried to form the adhesive layer 2. The coating method is not particularly limited, and a known method such as a dip coating method, a roll coating method, a curtain coating method, a die coating method, or a slit coating method can be employed without any problem. Thereafter, a substrate 3' formed by laminating, for example, an EPDM rubber sheet on the adhesion layer 2 is used as a three-layer structure. On the other hand, for example, a propylene-based adhesive is applied to the release-treated surface of the release liner 5 and dried to form the adhesive layer 4. Then, the three-layered structure is laminated on the adhesive layer 4 so that the base material 3 and the adhesive layer 4 are in contact with each other, and the double-sided adhesive tape for waterproofing is a five-layer structure. Further, the double-sided adhesive tape for waterproofing of Fig. 1 can be produced as follows. First, for example, a propylene-based adhesive is applied to the release-treated surface of the release liner 1 and dried to form the adhesive layer 2. Thereafter, a substrate 3 formed of, for example, an EPDM rubber sheet is laminated on the adhesive layer 2 as a three-layer structure. On one side opposite to the side of the adhesive layer 2 of the substrate 3 on which the three-layer structure is provided, for example, a propylene-based adhesive is applied and dried to form the adhesive layer 4. Thereafter, the release liner 5' is laminated on the adhesive layer 4 as a waterproof double-sided adhesive tape having a five-layer structure. Further, the double-sided adhesive tape for waterproofing of Fig. 1 can be produced as follows. For example, a substrate 3 made of an E P D Μ rubber sheet is coated with, for example, a propylene-based adhesive and dried to form an adhesive layer 2. Thereafter, for example, the release liner 1 is laminated on the adhesive layer 2 as a three-layer structure. On the opposite side to the surface on which the adhesive layer 2 of the base material 3 of the three-layer structure is formed, for example, a propylene-based adhesive is applied and dried to form the adhesive layer 4. Thereafter, the release liner 5 is laminated on the adhesive layer 4 as a waterproof double-sided adhesive tape having a five-layer structure. Moreover, the double-sided adhesive tape for waterproofing of Fig. 2 can be manufactured as follows: 3 - 13 - 201245385 First, one side of the release liner 6 which is subjected to the release treatment on both sides, and a propylene-based adhesive is applied, for example. It is dried to form an adhesive layer 2. Thereafter, a substrate 3 formed of, for example, an EPDM rubber sheet is laminated on the adhesive layer 2 as a three-layer structure. Then, for example, a surface of the adhesive layer 2 on which the substrate 3 is provided is coated with a propylene-based adhesive and dried to form an adhesive layer 4, which is a waterproof double-sided adhesive tape having a four-layer structure. Further, the double-sided adhesive tape for waterproofing of Fig. 2 can be produced as follows. First, for example, one side of the substrate 3 formed of the EPDM rubber sheet is coated with, for example, a propylene-based adhesive and dried to form the adhesive layer 2. Thereafter, for example, a release liner 6 is laminated on the adhesive layer 2 as a three-layer structure. Then, for example, a propylene-based adhesive is applied to the surface opposite to the surface on which one of the adhesive layers 2 of the substrate 3 is provided, and dried to form an adhesive layer 4 as a waterproof double-sided adhesive tape having a four-layer structure. [Examples] The composition of the double-sided adhesive tape for waterproofing of the present invention will be specifically described by way of examples. However, the double-sided adhesive tape for waterproofing of the present invention is not limited thereto. [Example 1] An isocyanate-based crosslinking agent (manufactured by Nippon Denshi Kogyo Co., Ltd., C) was added to 100 parts by mass of a propylene-based adhesive solution (Nippon Kasei Co., Ltd., "Nippon" KP-2514). K-1 1 7 ) 0.2 5 -14- 201245385 The mass part of the adhesive solution 'applied to the release liner' using a doctor coater, and dried at about 1 1 ° C to form a thickness of 50 /zm adhesive layer. On the adhesive layer formed on the release liner, an EPDM rubber sheet (thickness l〇〇ym, tensile strength 10 MPa, elongation 440%) having a surface treated with a corona was applied to make a single-sided adhesive tape. Then, as in the above, an adhesive layer having a thickness of 50 μm was formed on the release liner, and the adhesive layer was adhered to the EPDM rubber sheet side of the single-sided adhesive tape to form a double-sided adhesive tape. [Example 2] A double-sided adhesive was produced in the same manner as in Example 1 except that a urethane rubber sheet (thickness l〇〇vm, tensile strength: 40 MPa, elongation: 750%) was used instead of the EPDM rubber sheet. band. [Example 3] A double-sided adhesive tape was produced in the same manner as in Example 1 except that an EVA elastomer sheet (thickness 1 〇〇 #m, tensile strength 14 MPa, elongation 440%) was used instead of the EPDM rubber sheet. . [Comparative Example 1] In the same manner as in Example 1, except that a polyethylene (PE) foam substrate (thickness: 100/zm, tensile strength: 8 MPa, elongation: 600%) was used instead of the EPDM rubber sheet, Adhesive tape. -15- 201245385 For each of the obtained double-sided adhesive tapes, evaluation was carried out using the test methods described below. (Water resistance test) The test was carried out in accordance with the IPX7 specification (JIS C 0920 / IEC60529). The double-sided adhesive tape is punched into a frame mold having a shape of 50 mm x 100 mm, a width of 0.9 mm, 1 mm, or 2 mm, and is clamped in two acrylic plates having a shape of 60 mm x 20 mm, placed at 23 ° C under a load of mass lkg. The 24-hour person was used as a test piece. After the test piece was placed in water of a depth of lm for 30 minutes, the test piece was taken out to evaluate the presence or absence of water immersion to the inside of the double-sided adhesive tape of the frame mold (impact absorption test). The double-sided adhesive tape was punched into a shape of 25 mm x 25 mm. A frame mold having a width of 0.9 mm, 1 mm, or 2 mm was sandwiched between two acrylic sheets having a shape of 50 mm x 50 mm, and placed at 23 ° C for 24 hours under a load of mass lkg as a test piece. The iron ball of mass I6g was dropped from the center of the test piece at a height of 150 mm to measure the impact force of the test piece. An accelerometer (23 04A, manufactured by Nippon Showa Co., Ltd.) was used to measure the impact force, and the accelerometer was placed on the opposite side of the falling iron ball. As the evaluation method, the peak height of the first wave of the attenuation curve of the acceleration measured as shown in Fig. 6 is emphasized, and the peak height is lower, and -16-201245385 is the more absorption shock. The evaluation results are shown in Table 1. As is clear from Table 1, the double-sided adhesive tapes of Examples 1 to 3 having the non-foamed base material were narrower in width than the double-sided adhesive tape of Comparative Example 1 of the known foamed base material. It also has excellent water repellency and impact absorption. (Impact resistance test) The double-sided adhesive tape is punched into a frame mold having an outer shape of 50 mm x 100 mm, 0.9 mm, 1 mm, or 2 mm, and is sandwiched between two acrylic plates having a shape of 120 mm, and loaded under a load of mass lkg; The person who placed for 24 hours was used as a test piece. The test piece was dropped from the height 1 onto the bottom surface of the concrete to measure the number of times the test piece was separated and dropped. -17-201245385 m of the physical body, which is known as the width 60 mm X t 2 3〇C η Example 1 1___ PE bubble body CNJ m 1900 σ > 1950 CO 〇 > 1950 CO Example 3 EVA Elastomer CM Destroy 2050 in 壊2150 σ>〇> Destroy 2150 ο Example 2 Urethane Rubber CM Destroy 2100 (D T-· Destroy 2200 ________ σ>σ> Destroy 2200 σ> Example 1 I EPDM Rubber CM 璀1600 gy^· Destroy 1650 CO CO σ> m 1650 00 CO nn Substrate type bandwidth [mm] Water resistance test [with or without water immersion] Impact absorption test [m/s2] Impact resistance test [time] -18 - 201245385 [Brief Description of the Drawings] Fig. 1 is a cross-sectional view showing the structure of an embodiment of the double-sided adhesive tape for waterproofing of the present invention. Fig. 2 is a view showing the double-sided adhesive for waterproofing of Fig. 1. Fig. 3 is an exploded perspective view showing the main part of the mobile phone terminal. Fig. 4 is a schematic view for explaining the narrowing of the width of the double-sided adhesive tape formed in the frame shape. Figure 5 is an enlarged view of part A of Figure 4. Figure 6 The mode information showing measurement of impact absorption test The main element REFERENCE NUMERALS 1: release liner 2: adhesive layer 3: substrate 4: adhesive layer 5: release liner 6: release liner -19-