본 발명은 변성 공액디엔계 중합체 제조방법에 관한 것으로, 보다 상세하게는 탄화수소 용매 중에서, 유기 금속 화합물의 존재 하에, 공액디엔계 단량체를 중합하여 유기 금속이 결합된 활성 중합체를 제조하는 단계(S1); 및 상기 (S1) 단계에서 제조된 활성 중합체와 변성제를 혼합시키는 단계(S2)를 포함하고, 상기 (S2) 단계의 혼합은 레이놀즈 수 20 이하에서 1분 이상 실시되고, 상기 레이놀즈 수는 변성제 투입 시 레이놀즈 수의 ±5의 범위 내(단, 최소 0 초과, 최대 20 이하)에서 유지되는 것인 변성 공액디엔계 중합체 제조방법을 제공한다.

    The present invention relates to a method of preparing a modified conjugated diene-based polymer, and more particularly, to a method of preparing a modified conjugated diene-based polymer, including: preparing an active polymer with an organic metal bonded thereto by polymerizing a conjugated diene-based monomer in a hydrocarbon solvent in the presence of an organometallic compound (S1); and mixing the active polymer prepared according to process S1 with a modifier (S2), wherein the mixing of process S2 is performed at a Reynolds number of 20 or less for 1 minute or more, the Reynolds number being maintained within a range of ±5 of a Reynolds number when the modifier is added (wherein the range is between greater than 0 to 20 or less) .


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    Title :

    METHOD FOR PREPARING MODIFIED CONJUGATED DIENE POLYMER


    Additional title:

    변성 공액디엔계 중합체 제조방법


    Contributors:
    LEE TAE CHUL (author) / SOHN HAE SUNG (author) / LEE HE SEUNG (author) / KIM NO MA (author)

    Publication date :

    2017-06-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / B60C VEHICLE TYRES , Fahrzeugreifen / C08C TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS , Behandlung oder chemische Modifizierung von Kautschuken / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen