申请人:Monsanto Europe, S.A.
公开号:US04587296A1
公开(公告)日:1986-05-06
Additives for rubber compositions, giving vulcanisates having improved retention of optimum physical properties, are compounds containing two or more groups of the formula --S--SO.sub.2 R linked by an organic bridging group, or polymers containing two or more groups of the formula --S--SO.sub.2 R attached to an organic polymer chain, where R represents (a) a radical OM where M is a monovalent metal, the equivalent of a multivalent metal, a monovalent in derived by the addition of a proton to a nitrogenous base, or the equivalent of a multivalent ion derived by the addition of two or more protons to a nitrogenous base, or (b) an organic radical selected from aliphatic, cycloaliphatic, aromatic and heterocyclic radicals, and radicals which are combinations of any two or more such radicals.
用于橡胶组合物的添加剂,可以产生具有改善最佳物理性能保持的硫化物,这些化合物包含两个或更多的具有公式--S--SO.sub.2 R的基团,由有机桥接基团连接,或含有两个或更多具有公式--S--SO.sub.2 R的基团的聚合物附着在有机聚合物链上,其中R代表(a)OM基团,其中M是一价金属,多价金属的当量,通过在含氮碱基上添加一个质子得到一价衍生物,或通过在含氮碱基上添加两个或更多质子得到多价离子的当量,或(b)从脂肪族,环脂族,芳香族和杂环基团以及任意两种或更多此类基团组合选择的有机基团。