US Patent Issued to Chevron Phillips Chemical on Feb. 17 for "Advanced quality control tools for manufacturing bimodal and multimodal polyethylene resins" (Oklahoma Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,880, issued on Feb. 17, was assigned to Chevron Phillips Chemical Co. LP (The Woodlands, Texas).

"Advanced quality control tools for manufacturing bimodal and multimodal polyethylene resins" was invented by Youlu Yu (Bartlesville, Okla.), Paul J. DesLauriers (Owasso, Okla.) and Yongwoo Inn (Bartlesville, Okla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of determining multimodal polyethylene quality comprising the steps of (a) providing a multimodal polyethylene resin sample; (b) determining, in any sequence, the following: that the multimodal polyethylene resin sample has a melt index within 30% of a target melt index; that the multimod...