Method for producing modified conjugated diene polymer, modified conjugated diene polymer, and rubber composition

一种橡胶组合物、共轭二烯的技术，应用在轮胎零部件、车辆部件、特殊轮胎等方向，能够解决改性改良少、橡胶组合物改性效果未必充分、无法获得橡胶改性效果等问题，达到加工性良好、耐磨耗性优异的效果
CN101600737AActive Publication Date: 2009-12-09BRIDGESTONE CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BRIDGESTONE CORP
Publication Date
2009-12-09

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Abstract

Disclosed is a method for producing a modified conjugated diene polymer, which comprises a step (A) wherein a primary modified conjugated diene polymer is obtained by performing a primary modification reaction wherein a conjugated diene polymer having an active end, while having a vinyl content of less than 10% and a cis-1,4- bond content of not less than 75% is reacted with a heterocumulene compound having two or more specific functional groups; and a step (B) wherein a secondary modified conjugated diene polymer is obtained by further performing a secondary modification reaction wherein the thus-obtained primary modified conjugated diene polymer is reacted with an active hydrogen-containing compound containing one or more functional groups selected from the group consisting of an amino group, an imino group, a mercapto group and a hydroxyl group. This method enables to obtain a modified conjugated diene polymer which is excellent in low heat generation property (low fuel consumption property) and wear resistance.
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Description

technical field

[0001] The present invention relates to a method for producing a modified conjugated diene polymer, a modified conjugated diene polymer, a rubber composition, a tire component containing the rubber composition, and a tire having the tire component. More specifically, it relates to a method for producing a modified conjugated diene polymer capable of obtaining a modified conjugated diene polymer excellent in low heat generation (energy-saving properties) and abrasion resistance, and a method obtained by the method. A modified conjugated diene polymer, a rubber composition thereof, a tire component containing the rubber composition, and a tire having the tire component. Background technique

[0002] In recent years, demands for energy saving of automobiles have become increasingly stringent in connection with social demands for energy saving. In order to meet such demands, further reduction in rolling resistance is required even for tire performance. As a met...

Claims

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