发明授权
US3770694A Process for the production of non discoloring heat stable and degradation resistant polyisoprenes 失效
生产非挥发性耐热耐腐蚀性聚酯的方法

Process for the production of non discoloring heat stable and degradation resistant polyisoprenes
摘要:
POLYISOPRENE HAVING THE HIGH RESISTANCE TO THERMAL AND MECHANICAL STRESSES OF NATURAL RUBBER IS PRODUCED BY INCORPORATION INTO A SOLUTION OF THE POLYISOPRENE A MIXTURE OF A DIFUNCTIONAL SECONDARY ARYLAMINE OF THE FORMULA

(4-(R2-NH-)PHENYL)-NH-R1

WHEREIN R1 AND R2 ARE ALKYL, CYCLOALKYL OR ARYL, AND AN ALIPHATIC AMINE OF THE FORMULA RN(NH)N-1(NH2)X WHEREIN X IS 1 OR 2, N IS 1-10 AND R IS ALKYL WHEN N AND X BOTH ARE 1 AND ALKYLENE WHEN N IS GREATER THAN 1.
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