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US09512263B2 Method for producing polydienes and polydiene copolymers with reduced cold flow 有权
降低冷流的制备聚二烯和聚二烯共聚物的方法

Method for producing polydienes and polydiene copolymers with reduced cold flow
摘要：
A method for preparing a coupled polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer; (ii) reacting the reactive polymer with a polyisocyanate having a functionality of X to form an intermediate polymer product; and (iii) reacting the intermediate polymer product with a polyol having a functionality of Y to form the coupled polymer product, where X+Y≧5.
摘要（中）：

一种制备偶联聚合物的方法，所述方法包括以下步骤：（i）聚合单体以形成反应性聚合物; （ii）使反应性聚合物与官能度为X的多异氰酸酯反应以形成中间体聚合物产物; 和（iii）使中间聚合物产物与官能度为Y的多元醇反应，形成偶联聚合物产物，其中X +Y≥5。

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