丁基橡胶生产技术20世纪30年代问世,1946年实现工业化,至今技术没有重大突破。长时间以来,世界上只有美国、德国、俄罗斯和意大利4个国家拥有该产品的生产技术,全世界仅有8个丁基橡胶生产厂家。在国际市场上,美国埃克森公司和德国拜耳公司处于垄断地位,产品价格居高不下。我国所需的丁基橡胶一直依赖 Butyl rubber production technology was introduced in the 1930s and industrialization was achieved in 1946. There has been no major technological breakthrough. For a long time, only the United States, Germany, Russia and Italy have the production technology of this product in the world. There are only 8 butyl rubber manufacturers in the world. In the international market, the United States Exxon and Bayer Germany are in a monopoly position, and the product prices remain high. The butyl rubber needed in our country has always depended on