ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,178, issued on June 17, was assigned to KURARAY Co. LTD. (Okayama, Japan).
"Rubber compositions" was invented by Satoshi Motoda (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a rubber composition capable of giving cured products excellent in durability and vibration insulating properties. The present invention also provides a cured product of the composition, and a rubber vibration insulator using the cured product. The rubber composition includes a solid rubber (A), a liquid diene rubber (B), a silane coupling agent (C), and silica (D) having a BET specific surface area of 15 to 250 m2/g."
The patent was filed...