[0015] 以下，針對應用本發明之黏合劑組成物之實施形態詳細說明。 [0016] 本發明人等針對使用作為瀝青再生用之軟化劑、橡膠伸展油及橡膠調配油等之黏合劑組成物，為了於低溫時亦具有良好流動性、抑制作業性降低，而進行積極實驗研究。其結果，發現基於此等使用狀況下，尤其是開始流動時，對黏合劑組成物作用極緩慢之力(自保存容器流出時為重力，藉由泵移送時為壓力)，於測定於0℃下為0.1rad/秒(0.0159Hz)之緩慢頻率的複彈性率，其值若為10.00Pa以下，則可獲得該等作業中所要求之流動性。再者，發現作為瀝青用添加劑使用之溶劑萃取油中若添加潤滑油基油及瀝青，則於0℃下為0.1rad/秒之複彈性率成為10.00Pa以下，因而完成本發明。 [0017] 亦即，應用本發明之黏合劑組成物含有溶劑萃取油：63.0以上77.0重量%以下，潤滑油基油：20.0以上25.0重量%以下，瀝青：1.0以上12.0重量%以下。且，瀝青之含量Y與潤滑油基油之含量X之關係滿足Y≧-5/2×X+56。而且，於0℃下為0.1rad/秒之複彈性率為10.00Pa以下。 [0018] 以下，針對應用本發明之黏合劑組成物之數值限定理由加以說明。 [0019] 溶劑萃取油：63.0以上77.0重量%以下 溶劑萃取油含有較多芳香族分，主要係用以補充已劣化之瀝青的芳香族分而添加，作為軟化劑作用之成分。溶劑萃取油係自原油製造潤滑油時之溶劑萃取過程中產生之萃取油，富含芳香族分及石油腦分之油狀物(參考「作成石油製品之前」，圖6-1“一般潤滑油製造步驟”，石油聯盟發行，昭和46年11月第99頁，及「新石油辭典」，石油學會編，1982年，第304頁)。溶劑萃取油含量為63.0以上77.0重量%以下，可作為應用本發明之黏合劑組成物之基底材使用。因此，應用本發明之黏合劑組成物可含有較多芳香族分。 [0020] 溶劑萃取油含量超過77.0重量%時，黏合劑組成物之複彈性率變高。因此，低溫時之黏合劑組成物缺乏流動性，作業性降低。溶劑萃取油含量未達63.0重量%時，黏合劑組成物之芳香族分變少。因此，無法補充已劣化之瀝青的芳香族分，無法達成與新穎瀝青鋪設同等特性。又，溶劑萃取油含量未達63.0重量%時，潤滑油基油或瀝青含量變多。潤滑油基油含量變多之情況，黏合劑組成物之引火點降低，成為未達250℃。因此，作業時之安全性惡化及保存難易度變高。又，瀝青含量變多之情況，黏合劑組成物之複彈性率變高。因此，低溫時之黏合劑組成物缺乏流動性，作業性降低。因此，將溶劑萃取油含量設為63.0以上77.0重量%以下。又，溶劑萃取油期望有如下至少任一者：於60℃下之動黏度為400.0～600.0mm2
/秒，及於15℃下之密度為0.9600～0.9900g/cm3
。 [0021] 潤滑油基油：20.0以上25.0重量%以下 潤滑油基油主要係為了使溶劑萃取油之動黏度降低而添加。作為潤滑油基油之生成方法，係使用例如使用丙烷脫瀝青法，自減壓蒸餾殘留萃取脫瀝青油，使用溶劑萃取法自脫瀝青油萃取純化油，使用溶劑脫瀝青法自純化油萃取脫瀝青油，使用氫化純化法自脫瀝青油生成潤滑油基油之方法。潤滑油基油含量為20.0以上25.0重量%以下。因此，應用本發明之黏合劑組成物之引火點保持250℃以上，可使溶劑萃取油之動黏度充分降低。 [0022] 潤滑油基油含量超過25.0重量%時，黏合劑組成物之引火點成為未達250℃。因此，相當於危險物(第4類第四石油類)，作業時之安全性惡化及保存之難易度提高。潤滑油基油含量未達20.0重量%時，無法充分降低溶劑萃取油之動黏度，黏合劑組成物之複彈性率變高。因此，低溫時之黏合劑組成物缺乏流動性，作業性降低。因此，潤滑油基油含量設為20.0以上25.0重量%以下。又，潤滑油基油具有如下至少任一者：動黏度於40℃下為20.0mm2
/秒以上、30.0mm2
/秒以下，及於100℃下為3.0mm2
/秒以上、6.0mm2
/秒以下，於15℃下之密度為0.8500～0.8700g/cm3
以及引火點為210℃以下。 [0023] 瀝青：1.0以上12.0重量%以下 瀝青主要係用以提高溶劑萃取油與潤滑油基油之混合物中之流動性而添加。作為瀝青係使用例如純地瀝青(straight asphalt)(參考JIS K 2207)、吹製瀝青(blown asphalt)(參考JIS K 2207)、半吹製瀝青(參考「瀝青鋪設綱要」，財團法人日本道路協會發行，平成9年1月13日，第51頁，表-3.3.4)、溶劑脫瀝青之瀝青(參考「新石油辭典」，石油學會編，1982年第308頁)等之瀝青或該等之混合物。瀝青含量為1.0以上12.0重量%以下。因此，應用本發明之黏合劑組成物可保有於0℃下為0.1rad/秒之複彈性率為10.00Pa以下。 [0024] 瀝青含量超過12.0重量%時，由於黏合劑組成物所佔之瀝青含量過多，故阻礙溶劑萃取油與潤滑油基油之混合物中之流動性提高。因此，黏合劑組成物之複彈性率變高，缺乏流動性，作業性降低。瀝青含量未達10.0重量%時，由於黏合劑組成物所佔之瀝青含量過少，故無助於溶劑萃取油與潤滑油基油之混合物中之流動性提高。因此，黏合劑組成物之複彈性率變高，缺乏流動性，作業性降低。故而，瀝青含量設為1.0以上12.0重量%以下。 [0025] 又，應用本發明之黏合劑組成物期望使用溶劑脫瀝青之瀝青。溶劑脫瀝青之瀝青由於密度比其他瀝青高，故可提高黏合劑組成物之密度。又，溶劑脫瀝青之瀝青的芳香族分比其他瀝青多。因此，可補足已劣化之瀝青的芳香族分。溶劑脫瀝青之瀝青期望為下述之至少任 一者：針入度為3～20 (0.1mm)，軟化點為56.0～70.0℃，及於15℃下之密度為1.0600～1.0700g/cm3
。 [0026] 瀝青含量Y與上述潤滑油基油含量X之關係滿足Y≧-5/2×X+56 應用本發明之黏合劑組成物係瀝青含量Y與潤滑油基油含量X之關係滿足Y≧-5/2×X+56。因此，應用本發明之黏合劑組成物於0℃下為0.1rad/秒之複彈性率可保持為10.00Pa以下。 [0027] 瀝青含量Y與潤滑油基油含量X之關係滿足Y≧-5/2×X+56之情況，有助於黏合劑組成物之複彈性率降低的瀝青及潤滑油基油之至少任一者變少。瀝青含量變少時，無助於溶劑萃取油與潤滑油基油之混合物中之流動性提高。潤滑油基油少時，無法使溶劑萃取油之動黏度充分降低，黏合劑組成物之複彈性率變高。由此，低溫時黏合劑組成物缺乏流動性，作業性降低。故而，瀝青含量Y與潤滑油基油含量X之關係設為滿足Y≧-5/2×X+56。又，黏合劑組成物之瀝青含量Y與潤滑油基油含量X之關係設為滿足Y≧-11/2.8×X+90.4時，瀝青及潤滑油基油之含量變多，可形成具有安定複彈性率之黏合劑組成物。 [0028] 於0℃下為0.1rad/秒之複彈性率為10.00Pa以下 如前述，本發明中以抑制作業性降低為目標係在0℃左右之低溫時作用緩慢之力的作業時。為了實現該作業，於0℃下為0.1rad/秒之複彈性率超過10.00Pa時，於低溫幾乎不流動。因此，例如自保存容器流出及泵移送時之作業性降低。因此，應用本發明之黏合劑組成物於0℃下為0.1rad/秒之複彈性率設為10.00Pa以下。 [0029] 又，複彈性率G*係根據由鋪設調查．試驗法便覽(財團法人日本道路協會編)規定之動態剪切黏度計(DSR)試驗方法進行測定。本試驗之測定原理係將黏合劑組成物夾於2片平行圓盤(直徑50mm)間，對一圓盤施加特定頻率之正弦波應變(應變為10%)，測定透過黏合劑組成物(厚度1mm)傳遞至另一圓盤之正弦應力σ，由正弦應力與正弦波應變求出複彈性率者。接著，基於其測定結果，由下述數式(1)求出複彈性率G*。此處，下述數式(1)中之γ係施加至平行圓盤之最大應變。 [0030][0031] 潤滑油基油之動黏度於40℃下為20.0mm2
/秒以上、30.0mm2
/秒以下，及於100℃下為3.0mm2
/秒以上、6.0mm2
/秒以下 潤滑油基油之動黏度期望為於40℃下為20.0mm2
/秒以上、30.0 mm2
/秒以下，及於100℃下為3.0mm2
/秒以上、6.0mm2
/秒以下。潤滑油基油之動黏度於40℃下為超過30.0mm2
/秒及於100℃下為超過6.0mm2
/秒之至少任一者時，溶劑萃取油之動黏度無法充分降低，可能使黏合劑組成物之複彈性率變高。因此，低溫時之黏合劑組成物缺乏流動性，可能使作業性降低。且潤滑油基油之動黏度於40℃下為低於20.0mm2
/秒及於100℃下為低於3.0mm2
/秒之至少任一者時，潤滑油基油之引火點變過低，黏合劑組成物之引火點成為未達250℃，作業時之安全性惡化，或保管之難易度變高。 [0032] 如上述，應用本發明之黏合劑組成物中，於0℃下為0.1rad/秒之複彈性率設為10.00Pa以下。因此，低溫時之流動性優異，可使自保存容器之流出及泵移送時作用緩慢之力之作業下之作業性良好。 [0033] 又，應用本發明之黏合劑組成物除了基底材之溶劑萃取油、潤滑油基油及瀝青以外，亦可含有例如碳數3～18之飽和脂肪酸或不飽和脂肪酸、或該等之混合物或二聚物，此外亦可含有聚合物等。 [實施例] [0034] 以下，針對應用本發明之黏合劑組成物之特性，舉實施例及比較例具體說明。 [0035] 本實施例中，以下述表1之比例混合溶劑萃取油、潤滑油基油與瀝青，製作實施例及比較例之黏合劑組成物，並測定複彈性率、引火點及苯胺點(aniline point)。 [0036] 作為溶劑萃取油係使用15℃之密度為0.9750g/cm3
，於40℃下之黏度為2830mPa．秒，於60℃下之黏度為473mPa．秒，引火點為332℃，芳香族分為73.2%，苯胺點為70.2℃者。 [0037] 作為潤滑油基油係使用動黏度於40℃下為24.6mm2
/秒，及於100℃下為4.69mm2
/秒，15℃之密度為0.8619g/cm3
，流動點為-15.0℃，引火點為228℃，芳香族分為6.7%，苯胺點為101.7℃者(表1之潤滑油基油1)。 [0038] 作為瀝青，使用針入度12，軟化點65.0℃，15℃之密度為1.0600 g/cm3
，引火點為362℃之溶劑脫瀝青之瀝青(表1之瀝青1)，及針入度68，軟化點47.5℃，15℃之密度為1.0360g/cm3
，引火點為366℃之純地瀝青(表1之瀝青2)。 [0039] 又，作為潤滑油基油之比較例，使用動黏度於40℃下為489.0 mm2
/秒，及於100℃下為32.5mm2
/秒，15℃之密度為0.9022g/cm3
，流動點為-10.0℃，引火點為320℃，芳香族分為13.1%，苯胺點為121.5℃者(表1之潤滑油基油2)。 [0040] 又，複彈性率係根據上述DSR試驗方法測定。引火點係於JIS K 2265-4「求出引火點之方法-第4部：克利夫蘭開杯法(cleveland open cup test)」之條件下，藉由克利夫蘭開杯式(COC)自動引火點測定裝置測定。苯胺點係於JIS K2256之「石油製品-苯胺點及混合苯胺點之求得方法」條件下測定。 [0041] 又，流動點係於JIS K2269之「原油及石油製品之流動點及石油製品濁點試驗方法」條件下測定，動黏度係在JIS K2283之「原油及石油製品-動黏度試驗方法及黏度指數算出方法」條件下測定。 [0042] 如表1所示，未含有瀝青之比較例3，於0℃下為0.1rad/秒之複彈性率為39.60Pa。且瀝青含量為13.5重量%之比較例5，於0℃下為0.1rad/秒之複彈性率為10.40Pa。因此，瀝青含量未達1.0重量%之比較例3及超過12.0重量%之比較例5的黏合劑組成物，於低溫時缺乏流動性，作業性降低。 [0043] 相對於此，瀝青含量為1.0以上12.0重量%以下之實施例1～11，於0℃下為0.1rad/秒之複彈性率為10.00Pa以下。因此，實施例1～11之黏合劑組成物於低溫時流動性優異，可抑制作業性降低。且，代替溶劑脫瀝青的瀝青，而含純地瀝青3.5重量%之實施例12中，於0℃下為0.1rad/秒之複彈性率亦為4.81Pa。因此，實施例12之黏合劑組成物，亦於低溫時流動性優異，可抑制作業性降低。 [0044] 又，潤滑油基油含量為26.0重量%之比較例4，黏合劑組成物之引火點未達250℃。因此，作業時之安全性惡化，保存難易度變高。且例如如比較例5所示，潤滑油基油含量未達20.0重量%之情況，除上述瀝青含量超過上限值以外，溶劑萃取油含量相對於潤滑油基油含量之比例變多。因此，無法使溶劑萃取油之動黏度充分降低。藉此，黏合劑組成物之複彈性率變高，低溫時缺乏流動性，作業性降低。 [0045] 相對於此，潤滑油基油含量為20.0以上25.0重量%以下之實施例1～12，黏合劑組成物之引火點為250℃以上。因此，實施例1～12之黏合劑組成物，作業時之安全性提高及保存難易度可能變容易。 [0046] 圖1係針對各實施例1～11及比較例1～7之潤滑油基油含量與瀝青含量之關係作圖之圖。作圖周邊之數值表示於0℃下為0.1rad/秒之複彈性率(單位之Pa省略)。圖1之實線及虛線表示潤滑油基油及瀝青含量中之下限及上限之邊界線。圖1中之一點鏈線及兩點鏈線表示瀝青含量與潤滑油基劑含量之關係中之下限的邊界線。 [0047] 如圖1所示，比於瀝青含量Y與潤滑油基油含量X之關係中之下限邊界線Y=-5/2×X+56更下方作圖之比較例1、2、6及7於0℃下為0.1rad/秒之複彈性率分別為15.20Pa、15.00Pa、11.10Pa及17.80Pa。因此，為滿足Y≧-5/2×X+56之關係的比較例1、2、6及7之黏合劑組成物，於低溫時缺乏流動性，作業性降低。 [0048] 相對於此，實施例1～11係於瀝青含量Y與潤滑油基油含量X之關係中之下限邊界線Y=-5/2×X+56上、及位於潤滑油基油及瀝青含量中之上限及下限之邊界上、或由各邊界線包圍之區域內作圖。實施例1～11於0℃下為0.1rad/秒之複彈性率各為10.00Pa以下。亦即，各邊界線上或由各邊界線包圍之區域內作圖之黏合劑組成物，於低溫時流動性優異，可抑制作業性降低。 [0049] 又，實施例3～5、7～11係瀝青含量Y與潤滑油基油含量X之關係中之下限邊界線Y=-11/2.8×X+90.4上、及位於潤滑油基油及瀝青含量中之上限及下限之邊界上、或由各邊界線包圍之區域內作圖。因此，實施例3～5、7～11之黏合劑組成物中，瀝青及潤滑油基油含量變多，可形成具有安定複彈性率之黏合劑組成物。 [0050] 又，表1所示之比較例8含有潤滑油基油2。潤滑油基油2如上述與潤滑油基油1比較，動黏度較高，於40℃下大幅超過30.0mm2
/秒，及於100℃下大幅超過6.0mm2
/秒。因此，即使溶劑萃取油、潤滑油基由及瀝青含量落於與實施例1～12同樣範圍內，仍可能成為於0℃下為0.1rad/秒之複彈性率為10.00Pa以上。 [0051] 又，實施例1～12中之溶劑萃取油含量為63.0以上77.0重量%以下，該等之苯胺點均為80.0℃以下。藉此，可知實施例1～12之黏合劑組成物中含較多芳香族分。 [0052] 如上述，應用本發明之黏合劑組成物含有溶劑萃取油：63.0以上77.0重量%以下，潤滑油基油：20.0以上25.0重量%以下，瀝青：1.0以上12.0重量%以下。且，瀝青含量Y與潤滑油基油含量X之關係滿足Y≧-5/2×X+56。而且，於0℃下為0.1rad/秒之複彈性率為10.00Pa以下。因此，即使於如冬天或寒冷地帶等之低溫時，流動性亦優異。藉此，即使低溫時，亦可抑制作業性降低。 [0053] 又，應用本發明之黏合劑組成物含有較多溶劑萃取油作為基底材，苯胺點為80.0℃以下，含較多芳香族分。因此，可補足已劣化之瀝青的芳香族分。藉此，可獲得與新穎瀝青鋪設同等特性之再生瀝青鋪設。 [0054] 又，應用本發明之黏合劑組成物之引火點為250℃以上。藉此，由於瀝青安全性增加，故處理或保存容易。 [0055] 又，應用本發明之黏合劑組成物中進而含有之潤滑油基油之動黏度於40℃下為20.0mm2
/秒以上、30.0mm2
/秒以下，及於100℃下為3.0mm2
/秒以上、6.0mm2
/秒以下。藉此，可抑制材料特性之偏差，可容易地達成低溫時之作業性降低之抑制。 [0056] 又，應用本發明之黏合劑組成物亦可於低溫時以外之環境下使用。 [0057] 雖已說明本發明之實施形態，但該等實施形態係作為例示提示者，並無意圖限定本發明範圍。該等新穎實施形態可以其他各種形態實施，在不脫離本發明要旨之範圍內，可進行各種省略、置換、變更。該等實施形態及其變化均包含在發明範圍或要旨內，包含於與申請專利範圍中記載之發明均等之範圍內。[0015] Hereinafter, embodiments of the adhesive composition to which the present invention is applied will be described in detail. [0016] The inventors of the present invention have conducted active experiments in order to use a binder composition such as a softening agent for asphalt regeneration, a rubber stretching oil, and a rubber blending oil, etc., in order to have good fluidity at low temperatures and to suppress workability. the study. As a result, it was found that, based on these use conditions, especially when the flow started, the force acting on the adhesive composition was extremely slow (gravity when flowing out of the storage container, and pressure when pumped by the pump), and was measured at 0 ° C. The lower modulus of resilience of a slow frequency of 0.1 rad/sec (0.0159 Hz), if the value is 10.00 Pa or less, the fluidity required in such operations can be obtained. In addition, when the lubricating base oil and the pitch are added to the solvent extraction oil used as the additive for the asphalt, the complex modulus of 0.1 rad/sec at 0 ° C is 10.00 Pa or less, and thus the present invention has been completed. That is, the binder composition to which the present invention is applied contains a solvent extraction oil: 63.0 or more and 77.0% by weight or less, a lubricating base oil: 20.0 or more and 25.0% by weight or less, and a pitch of 1.0 or more and 12.0% by weight or less. Further, the relationship between the content Y of the pitch and the content X of the lubricating base oil satisfies Y≧-5/2×X+56. Further, the complex modulus of 0.1 rad/sec at 0 ° C was 10.00 Pa or less. [0018] Hereinafter, the reason for limiting the numerical value of the binder composition to which the present invention is applied will be described. [0019] Solvent extraction oil: 63.0 or more and 77.0% by weight or less The solvent extraction oil contains a large amount of aromatic components, and is mainly added to supplement the aromatic component of the deteriorated pitch, and acts as a component of the softening agent. The solvent extraction oil is an extraction oil produced during solvent extraction from a crude oil to produce a lubricating oil, and is rich in aromatics and petroleum brain oils (refer to "Before making petroleum products", Figure 6-1 "General lubricating oil Manufacturing Steps, issued by the Petroleum Alliance, page 99 of November, Showa, and "New Oil Dictionary", edited by the Petroleum Society, 1982, p. 304). The solvent extraction oil content is 63.0 or more and 77.0% by weight or less, and can be used as a base material to which the binder composition of the present invention is applied. Therefore, the adhesive composition to which the present invention is applied may contain a large amount of aromatic components. [0020] When the solvent extraction oil content exceeds 77.0% by weight, the complex modulus of the binder composition becomes high. Therefore, the binder composition at a low temperature lacks fluidity and workability is lowered. When the solvent extraction oil content is less than 63.0% by weight, the aromatic component of the binder composition is small. Therefore, the aromatic fraction of the deteriorated asphalt cannot be replenished, and the same characteristics as the novel asphalt pavement cannot be achieved. Further, when the solvent extraction oil content is less than 63.0% by weight, the lubricating base oil or the asphalt content is increased. When the lubricating oil base oil content is increased, the ignition point of the binder composition is lowered to become less than 250 °C. Therefore, the safety at the time of work is deteriorated and the difficulty of storage becomes high. Further, when the asphalt content is increased, the complex modulus of the binder composition becomes high. Therefore, the binder composition at a low temperature lacks fluidity and workability is lowered. Therefore, the solvent extraction oil content is set to 63.0 or more and 77.0% by weight or less. Further, the solvent extraction oil is desirably at least one of the following: the dynamic viscosity at 60 ° C is 400.0 to 600.0 mm 2 /sec, and the density at 15 ° C is 0.9600 to 0.9900 g/cm 3 . [0021] Lubricating base oil: 20.0 or more and 25.0% by weight or less The lubricating base oil is mainly added in order to lower the dynamic viscosity of the solvent extraction oil. As a method for producing a lubricating base oil, for example, a propane deasphalting method is used, a residual deasphalted oil is extracted from a vacuum distillation, and a purified oil is extracted from a deasphalted oil by a solvent extraction method, and extracted from a purified oil by a solvent deasphalting method. Asphalt oil, a method of producing a lubricating base oil from a deasphalted oil by a hydrogenation purification method. The lubricating base oil content is 20.0 or more and 25.0% by weight or less. Therefore, the ignition point of the binder composition to which the present invention is applied is maintained at 250 ° C or higher, and the dynamic viscosity of the solvent extraction oil can be sufficiently lowered. [0022] When the lubricating base oil content exceeds 25.0% by weight, the ignition point of the binder composition becomes less than 250 °C. Therefore, it is equivalent to a dangerous substance (fourth type of fourth petroleum type), and the safety at the time of work is deteriorated and the difficulty of storage is improved. When the lubricating oil base oil content is less than 20.0% by weight, the dynamic viscosity of the solvent extraction oil cannot be sufficiently lowered, and the complex modulus of the binder composition becomes high. Therefore, the binder composition at a low temperature lacks fluidity and workability is lowered. Therefore, the lubricating base oil content is set to 20.0 or more and 25.0% by weight or less. Further, the lubricating base oil has at least one of a dynamic viscosity of 20.0 mm 2 /sec or more and 30.0 mm 2 /sec or less at 40 ° C, and 3.0 mm 2 /sec or more and 6.0 mm 2 at 100 ° C. The density at 15 ° C is 0.8500 to 0.8700 g/cm 3 and the ignition point is 210 ° C or less. [0023] Asphalt: 1.0 or more and 12.0% by weight or less of the asphalt is mainly added to increase the fluidity in the mixture of the solvent extraction oil and the lubricating base oil. As the asphalt, for example, straight asphalt (refer to JIS K 2207), blown asphalt (refer to JIS K 2207), and semi-blowing asphalt (refer to "Asphalt paving outline"), Japan Road Association Issued, January 13, 2009, page 51, Table-3.3.4), solvent deasphalted asphalt (refer to the "New Petroleum Dictionary", edited by the Petroleum Institute, 1982, p. 308), etc. a mixture. The pitch content is 1.0 or more and 12.0% by weight or less. Therefore, the adhesive composition to which the present invention is applied can have a complex modulus of 0.1 kPa/sec at 0 ° C of 10.00 Pa or less. [0024] When the content of the asphalt exceeds 12.0% by weight, since the binder composition occupies too much asphalt, the fluidity in the mixture of the solvent extraction oil and the lubricating base oil is inhibited from increasing. Therefore, the complex modulus of the binder composition becomes high, fluidity is lacking, and workability is lowered. When the asphalt content is less than 10.0% by weight, since the binder composition occupies too little bitumen, it does not contribute to the improvement of fluidity in the mixture of the solvent extraction oil and the lubricating base oil. Therefore, the complex modulus of the binder composition becomes high, fluidity is lacking, and workability is lowered. Therefore, the pitch content is set to 1.0 or more and 12.0% by weight or less. Further, the use of the binder composition of the present invention desirably uses a solvent deasphalted asphalt. Solvent deasphalted asphalt has a higher density than other asphalts, thereby increasing the density of the binder composition. Further, the solvent deasphalted asphalt has more aromatic components than other asphalts. Therefore, the aromatic fraction of the deteriorated asphalt can be made up. Solvent deasphalting of a desired pitch of any of the following at least one of: penetration of 3 ~ 20 (0.1mm), a softening point of 56.0 ~ 70.0 ℃, and the density under the 15 deg.] C of 1.0600 ~ 1.0700g / cm 3 . [0026] The relationship between the asphalt content Y and the above lubricating oil base oil content X satisfies Y≧-5/2×X+56. The relationship between the asphalt composition Y of the binder composition of the present invention and the lubricating oil base oil content X satisfies Y. ≧-5/2×X+56. Therefore, the viscoelastic composition using the adhesive composition of the present invention at 0.1 °/sec at 0 ° C can be maintained at 10.00 Pa or less. [0027] The relationship between the asphalt content Y and the lubricating oil base oil content X satisfies the case of Y≧-5/2×X+56, and at least the asphalt and the lubricating base oil which contribute to the reduction of the complex modulus of the binder composition Any one becomes less. When the asphalt content is reduced, the fluidity in the mixture of the solvent extraction oil and the lubricating base oil is not improved. When the lubricating base oil is small, the dynamic viscosity of the solvent extraction oil cannot be sufficiently lowered, and the complex modulus of the binder composition becomes high. As a result, the binder composition lacks fluidity at low temperatures, and workability is lowered. Therefore, the relationship between the asphalt content Y and the lubricating base oil content X is set to satisfy Y≧-5/2×X+56. Moreover, when the relationship between the asphalt content Y of the binder composition and the lubricating oil base oil content X is set to satisfy Y≧-11/2.8×X+90.4, the content of the asphalt and the lubricating base oil is increased, and the formation can be stabilized. Adhesive composition of modulus of elasticity. [0028] The complex modulus of 0.1 rad/sec at 0 ° C is 10.00 Pa or less. As described above, in the present invention, in order to suppress the decrease in workability, the operation is slow at a low temperature of about 0 ° C. In order to achieve this operation, when the complex modulus of 0.1 rad/sec at 0 ° C exceeds 10.00 Pa, it hardly flows at a low temperature. Therefore, for example, the workability from the time when the container is discharged and the pump is transferred is lowered. Therefore, the adhesive composition of the present invention has a complex modulus of 0.1 rad/sec at 0 ° C of 10.00 Pa or less. [0029] Also, the complex modulus of elasticity G* is based on the investigation by laying. The test method is a dynamic shear viscosity meter (DSR) test method prescribed by the Japan Road Association. The measurement principle of this test is to sandwich the adhesive composition between two parallel discs (50 mm in diameter), apply a sine wave strain (strain of 10%) at a specific frequency to a disc, and measure the composition of the adhesive through the thickness (thickness). 1mm) The sinusoidal stress σ transmitted to the other disk, and the complex elastic modulus is obtained from the sinusoidal stress and the sine wave strain. Next, based on the measurement result, the complex modulus of elasticity G* is obtained from the following formula (1). Here, γ in the following formula (1) is applied to the maximum strain of the parallel disk. [0030] [0031] The lubricating oil base oil has a dynamic viscosity of 20.0 mm 2 /sec or more and 30.0 mm 2 /sec or less at 40 ° C, and a lubricating oil of 3.0 mm 2 /sec or more and 6.0 mm 2 /sec or less at 100 ° C. The dynamic viscosity of the base oil is desirably 20.0 mm 2 /sec or more and 30.0 mm 2 /sec or less at 40 ° C, and 3.0 mm 2 /sec or more and 6.0 mm 2 /sec or less at 100 ° C. When the dynamic viscosity of the lubricating base oil is at least 30.0 mm 2 /sec at 40 ° C and more than 6.0 mm 2 / sec at 100 ° C, the dynamic viscosity of the solvent extraction oil may not be sufficiently lowered, and the adhesion may be caused. The complex modulus of the agent composition becomes high. Therefore, the binder composition at a low temperature lacks fluidity and may deteriorate workability. When the dynamic viscosity of the lubricating base oil is less than 20.0 mm 2 /sec at 40 ° C and less than 3.0 mm 2 / sec at 100 ° C, the ignition point of the lubricating base oil becomes too low The ignition point of the binder composition is less than 250 ° C, the safety during operation is deteriorated, or the ease of storage becomes high. As described above, in the adhesive composition of the present invention, the complex modulus of 0.1 rad/sec at 0 ° C is set to 10.00 Pa or less. Therefore, the fluidity at the time of low temperature is excellent, and the workability in the work of the flow from the storage container and the slow action of the pump transfer can be improved. Further, the binder composition to which the present invention is applied may contain, for example, a solvent-derived oil, a lubricating base oil, and a pitch of a base material, and may contain, for example, a saturated fatty acid or an unsaturated fatty acid having 3 to 18 carbon atoms, or the like. The mixture or dimer may further contain a polymer or the like. [Examples] Hereinafter, the characteristics of the binder composition to which the present invention is applied will be specifically described by way of examples and comparative examples. [0035] In the present embodiment, the solvent extraction oil, the lubricating base oil and the pitch were mixed in the ratio of Table 1 below, and the binder compositions of the examples and the comparative examples were prepared, and the complex modulus, the ignition point, and the aniline point were measured. Aniline point). [0036] As a solvent extraction oil system using a density of 15 ° C of 0.9750g / cm 3 , the viscosity at 40 ° C is 2830mPa. Seconds, the viscosity at 60 ° C is 473 mPa. In seconds, the ignition point is 332 ° C, the aromatics are 73.2%, and the aniline point is 70.2 ° C. [0037] As used oil-based lubricating base movable viscosity at 40 ℃ of 24.6mm 2 / s, and at 100 deg.] C of 4.69mm 2 / s, a density of 15 deg.] C was 0.8619g / cm 3, a pour point of - 15.0 ° C, the ignition point is 228 ° C, the aromatics are 6.7%, and the aniline point is 101.7 ° C (the lubricating base oil 1 of Table 1). [0038] As the pitch, a solvent deasphalted asphalt having a penetration degree of 12, a softening point of 65.0 ° C, a density of 15 ° C of 1.0600 g/cm 3 , a ignition point of 362 ° C (asphalt 1 of Table 1), and needle penetration were used. Degree 68, a softening point of 47.5 ° C, a density of 15360 °C of 1.0360 g/cm 3 , and a pure asphalt of 366 ° C (the asphalt 2 of Table 1). Further, as a comparative example of the lubricating base oil, the dynamic viscosity was 489.0 mm 2 /sec at 40 ° C, and 32.5 mm 2 /sec at 100 ° C, and the density at 15 ° C was 0.9022 g / cm 3 The flow point is -10.0 ° C, the ignition point is 320 ° C, the aromatics are 13.1%, and the aniline point is 121.5 ° C (the lubricating base oil 2 of Table 1). Further, the complex modulus is measured according to the above DSR test method. The ignition point is determined by the Cleveland Open Cup (COC) automatic ignition point measuring device under the conditions of JIS K 2265-4 "Method for Finding the Fire Point - Part 4: Cleveland Open Cup Test" Determination. The aniline point is measured under the conditions of "the method for obtaining petroleum products - aniline point and mixed aniline point" in JIS K2256. [0041] In addition, the flow point is measured under the condition of "the flow point of crude oil and petroleum products and the cloud point test method of petroleum products" in JIS K2269, and the dynamic viscosity is "the crude oil and petroleum products - dynamic viscosity test method of JIS K2283" The viscosity index calculation method was measured under the conditions. [0042] As shown in Table 1, Comparative Example 3, which did not contain pitch, had a resilience ratio of 0.1 rad/sec at 0 ° C of 39.60 Pa. Further, in Comparative Example 5 in which the asphalt content was 13.5% by weight, the complex modulus of 0.1 rad/sec at 0 ° C was 10.40 Pa. Therefore, the binder composition of Comparative Example 3 in which the pitch content was less than 1.0% by weight and the binder composition of Comparative Example 5 exceeding 12.0% by weight lacked fluidity at a low temperature and the workability was lowered. On the other hand, in Examples 1 to 11 in which the pitch content was 1.0 or more and 12.0% by weight or less, the complex modulus of 0.1 rad/sec at 0 ° C was 10.00 Pa or less. Therefore, the adhesive compositions of Examples 1 to 11 are excellent in fluidity at low temperatures, and can suppress workability. Further, in place of the solvent deasphalted asphalt, in Example 12 containing 3.5% by weight of pure pitch, the complex modulus of 0.1 rad/sec at 0 ° C was also 4.81 Pa. Therefore, the adhesive composition of Example 12 is also excellent in fluidity at low temperatures, and can suppress workability. Further, in Comparative Example 4 in which the lubricating base oil content was 26.0% by weight, the ignition point of the adhesive composition was less than 250 °C. Therefore, the safety at the time of work is deteriorated, and the difficulty of storage becomes high. Further, for example, as shown in Comparative Example 5, when the lubricating oil base oil content is less than 20.0% by weight, the ratio of the solvent extraction oil content to the lubricating oil base oil content increases in addition to the above asphalt content exceeding the upper limit value. Therefore, the dynamic viscosity of the solvent extraction oil cannot be sufficiently lowered. Thereby, the complex modulus of the binder composition becomes high, fluidity is lacking at a low temperature, and workability is lowered. On the other hand, in Examples 1 to 12 in which the lubricating base oil content was 20.0 or more and 25.0% by weight or less, the ignition point of the adhesive composition was 250 ° C or higher. Therefore, the adhesive compositions of Examples 1 to 12 may be improved in safety during work and ease of storage. 1 is a graph showing the relationship between the lubricating oil base oil content and the asphalt content of each of Examples 1 to 11 and Comparative Examples 1 to 7. The numerical value around the graph indicates a complex modulus of 0.1 rad/sec at 0 ° C (the unit is omitted). The solid line and the broken line in Fig. 1 indicate the boundary line between the lower limit and the upper limit of the lubricating base oil and the asphalt content. The one-dot chain line and the two-dot chain line in Fig. 1 indicate the boundary line of the lower limit of the relationship between the asphalt content and the lubricating oil base content. [0047] As shown in FIG. 1, the comparative example 1, 2, and 6 are plotted below the lower limit boundary line Y=-5/2×X+56 in the relationship between the asphalt content Y and the lubricating base oil content X. And the complex moduli of 0.1 rad/sec at 0 ° C were 15.20 Pa, 15.00 Pa, 11.10 Pa, and 17.80 Pa, respectively. Therefore, in the adhesive compositions of Comparative Examples 1, 2, 6, and 7 which satisfy the relationship of Y≧-5/2×X+56, fluidity is lacking at a low temperature, and workability is lowered. [0048] In contrast, Examples 1 to 11 are based on the lower limit boundary line Y=-5/2×X+56 in the relationship between the asphalt content Y and the lubricating base oil content X, and are located in the lubricating base oil and The upper and lower limits of the asphalt content are plotted on the boundary or surrounded by the boundary lines. In Examples 1 to 11, the complex modulus of 0.1 rad/sec at 0 ° C was 10.00 Pa or less. In other words, the binder composition plotted on each boundary line or in the region surrounded by the boundary lines is excellent in fluidity at low temperatures, and can suppress workability. [0049] Further, Examples 3 to 5, 7 to 11 are the lower limit boundary line in the relationship between the asphalt content Y and the lubricating oil base oil content X, Y=-11/2.8×X+90.4, and are located in the lubricating base oil. And plotting the upper and lower limits of the asphalt content or in the area surrounded by the boundary lines. Therefore, in the adhesive compositions of Examples 3 to 5 and 7 to 11, the content of the asphalt and the lubricating base oil is increased, and a binder composition having a stable recombination rate can be formed. Further, Comparative Example 8 shown in Table 1 contains a lubricating base oil 2. The lubricating base oil 2 has a higher dynamic viscosity as compared with the lubricating base oil 1 as described above, and greatly exceeds 30.0 mm 2 /sec at 40 ° C and significantly exceeds 6.0 mm 2 / sec at 100 ° C. Therefore, even if the solvent extraction oil, the lubricating oil base, and the asphalt content fall within the same range as in Examples 1 to 12, the complex modulus of 0.1 rad/sec at 0 ° C may be 10.00 Pa or more. Further, the solvent extraction oil content in Examples 1 to 12 was 63.0 or more and 77.0% by weight or less, and the aniline points were all 80.0 ° C or lower. From this, it was found that the binder compositions of Examples 1 to 12 contained a large amount of aromatic components. As described above, the binder composition to which the present invention is applied contains a solvent extraction oil: 63.0 or more and 77.0% by weight or less, a lubricating base oil: 20.0 or more and 25.0% by weight or less, and a pitch of 1.0 or more and 12.0% by weight or less. Further, the relationship between the asphalt content Y and the lubricating base oil content X satisfies Y≧-5/2×X+56. Further, the complex modulus of 0.1 rad/sec at 0 ° C was 10.00 Pa or less. Therefore, the fluidity is excellent even at a low temperature such as winter or a cold zone. Thereby, even at a low temperature, workability can be suppressed from being lowered. Further, the adhesive composition to which the present invention is applied contains a large amount of solvent extraction oil as a base material, and the aniline point is 80.0 ° C or less, and contains a large amount of aromatic components. Therefore, the aromatic fraction of the deteriorated asphalt can be made up. Thereby, it is possible to obtain a reclaimed asphalt pavement having the same characteristics as the novel asphalt paving. Further, the ignition point of the adhesive composition to which the present invention is applied is 250 ° C or higher. Thereby, since the safety of the asphalt is increased, handling or storage is easy. Further, the dynamic viscosity of the lubricating base oil further contained in the adhesive composition of the present invention is 20.0 mm 2 /sec or more, 30.0 mm 2 /sec or less at 40 ° C, and 3.0 at 100 ° C. Mm 2 / sec or more, 6.0 mm 2 / sec or less. Thereby, variations in material properties can be suppressed, and reduction in workability at low temperatures can be easily achieved. Further, the adhesive composition to which the present invention is applied can also be used in an environment other than a low temperature. The embodiments of the present invention have been described, but are not intended to limit the scope of the present invention. The present invention may be embodied in various other forms, and various omissions, substitutions and changes may be made without departing from the scope of the invention. The scope of the invention and its modifications are intended to be included within the scope of the invention and the scope of the invention as defined in the claims.