ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,304, issued on May 13, was assigned to Chevron Philips Chemical Co. LP (The Woodlands, Texas).
"Catalyst composition and method for preparing polyethylene" was invented by Graham R. Lief (The Woodlands, Texas), Qing Yang (The Woodlands, Texas) and Eric J. Haschke (The Woodlands, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are metallocene compounds, catalyst compositions comprising at least one metallocene compound, processes for polymerizing olefins, methods for making catalyst compositions, olefin polymers and articles made from olefin polymers. In an aspect, a metallocene compound and catalyst composition are disclosed in which ...