ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,008, issued on March 24, was assigned to Basell Poliolefine Italia S.r.l. (Milan).
"Polyolefin composition for roofing applications" was invented by Michele Grazzi (Ferrara, Italy) and Claudio Cavalieri (Ferrara, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A polyolefin composition made from or containing: (A) 18-35% by weight of a copolymer of propylene with an alpha-olefin, wherein the copolymer contains 2.0-4.0% by weight of the alpha-olefin and has a melt flow rate (MFRA) ranging from 30 to 60 g/10 min; and (B) 65-82% by weight of a copolymer of propylene with an alpha-olefin, and optionally a diene, wherein the copolymer is made from o...