PEROXIDE CURED BUTYL RUBBER COMPOSITIONS AND A PROCESS FOR MAKING PEROXIDE CURED BUTYL RUBBER COMPOSITIONS

摘要

The present invention is directed to a peroxide cured rubber composition containing a non-crosslinked or significantly non-crosslinked (< 10 wt. % gel) butyl rubber polymer, a multiolefin crosslinking agent, a peroxide curing agent and at least one filler. The present invention is also directed to a process for preparing a peroxide cured rubber composition which includes mixing a non-crosslinked or significantly non-crosslinked butyl rubber with a multiolefin crosslinking agent, at least one filler and a peroxide curing agent, wherein the process does not include the addition of non-peroxide curing agents such as sulfur, quinoids, resins and sulfur donors.