Pursuant to the invention a process for the production of hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art in the is provided wherein the process is carried out in the presence of hydrogen and optionally at least one co-(olefin). The present invention further relates to the use of specific metal compounds in a process for the production of a hydrogenated nitrile rubber by simultaneous hydrogenation and metathesis of a nitrile rubber.
                            根据本发明,提供了一种生产氢化
丁腈橡胶聚合物的工艺,该聚合物的分子量较低,分子量分布也较本领域已知的聚合物窄,其中该工艺是在氢和可选的至少一种共(烯烃)存在下进行的。本发明还涉及在通过
丁腈橡胶的同时氢化和偏合成生产氢化
丁腈橡胶的工艺中使用特定的
金属化合物。