ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,167, issued on Jan. 20, was assigned to ExxonMobil Chemical Patents Inc. (Baytown, Texas).
"Bicomponent polymeric fibers" was invented by Bin Zhao (Songjing, China) and Abigail I. Agentis (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bicomponent fiber comprising a sheath, where the sheath includes a propylene-based elastomer, said propylene-based elastomer including propylene-derived units and from about 3.0 to about 15 wt % alpha-olefin-derived units other than propylene-derived units, based upon the entire weight of the copolymer, said propylene-based elastomer having a triad tacticity of greater than 75%, and a heat of fusion, as dete...