ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,383, issued on June 24, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).
"3D-printed polyrotaxane additives and compositions" was invented by Hasmukh A. Patel (Katy, Texas), Ali Z. Khater (Houston), Peter Boul (Houston), Pulickel M. Ajayan (Houston) and Muhammad M. Rahman (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "This document relates to sealant compositions containing a sliding-ring polymer (polyrotaxane) additive and a polymeric matrix material. The sealant materials exhibit enhanced mechanical properties as compared to the same sealant composition that does not contain the additive. This document also relates to 3D-pri...