Azodicarboxy additives for rubber compositions
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United States of America Patent
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Dec 27, 2022
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app pub date -
Apr 8, 2019
filing date -
Apr 8, 2019
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Abstract
A polymeric composition includes a diene elastomer; an azodicarboxy compound; and a reinforcing filler comprising silica. The composition is not foamed. A method for preparing a polymeric composition includes mixing in one or more steps: a diene elastomer; an azodicarboxy compound; and a reinforcing filler. The mixing temperature is less than 160° C. in mixing steps in which the azodicarboxy compound is present. In an embodiment, the mixing temperature is kept below the decomposition temperature of the azodicarboxy compound.
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