US Patent Issued to Sumitomo Chemical on Sept. 30 for "Heterophasic propylene polymerization material and olefin polymer" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,549, issued on Sept. 30, was assigned to Sumitomo Chemical Co. Ltd. (Tokyo).

"Heterophasic propylene polymerization material and olefin polymer" was invented by Masaki Ito (Ichihara, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a heterophasic propylene polymerization material and an olefin polymer having a small high-boiling-point component amount index (FOG). The heterophasic propylene polymerization material satisfies the following formula (3): (X2xY2)/Z2less than equal to7.0 (3) wherein X2 represents a cold xylene soluble component amount (mass %) of the heterophasic propylene polymerization material; Y2 represents a percent...