HALOGENATED ELASTOMERS WITH MOONEY VISCOSITY STABILITY AND METHOD FOR PREPARING SAME

Methods of improving Mooney stability of a brominated elastomer comprise: neutralizing a brominated elastomer effluent with a neutralizing agent and water to form a neutralized effluent comprising a hydrocarbon solvent; removing the solvent from the neutralized effluent to form a brominated elastomer slurry; and separating a brominated elastomer from the brominated elastomer slurry, wherein a Mooney stabilizer package comprising an amine-functional hindered amine stabilizer (HAS) and an acid scavenger can be added, together or separately, before the removing step are provided herein. The acidscavenger can comprise a protonatable atom with a pKa greater than the pKa of the HAS nitrogen atom. The separated brominated elastomer can have a delta Mooney of not more than about 10 Mooney units after 7 days at 80 DEG C. Stabilized brominated elastomer compositions can be made using this method, and articles can be made from those compositions. 本文提供了改进溴化弹性体的门尼稳定性的方法，其包括：用中和剂和水中和溴化弹性体流出物来形成包含烃溶剂的中和的流出物；从该中和的流出物中除去所述溶剂来