A modified conjugated diene polymer having good fracture properties at a high temperature can be obtained as a vulcanized product. The modified conjugated diene polymer of the present invention has the mooney stress relaxation rate of 0.45 or more at 110°C; the modification ratio of 75 mass% or more; the weight average molecular weight (Mw) of 200,000 or more and 3,000,000 or less; and the molecular weight distribution (weight average molecular weight (Mw) / number average molecular weight (Mn)) of 1.5 or more and 3.5 or less.
[과제] 가황물로 하였을 때 양호한 고온에서의 파괴 특성을 갖는 변성 공액 디엔계 중합체를 얻는다. [해결수단] 110℃에 있어서의 무니 완화율이 0.45 이상이고, 변성률이 75질량% 이상이고, 중량 평균 분자량(Mw)이 20만 이상 300만 이하이고, 분자량 분포(중량 평균 분자량(Mw)/수 평균 분자량(Mn))가 1.5 이상 3.5 이하인, 변성 공액 디엔계 중합체이다.
MODIFIED CONJUGATED DIENE POLYMER MODIFIED CONJUGATED DIENE POLYMER COMPOSITION AND TIRE
변성 공액 디엔계 중합체, 변성 공액 디엔계 중합체 조성물, 및 타이어
2018-06-18
Patent
Electronic Resource
Korean
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 / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |
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