ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,256, issued on Sept. 29, was assigned to SHIN-ETSU CHEMICAL Co. LTD. (Tokyo).
"Method for producing oxadisilacyclopentane compound" was invented by Yoichi Tonomura (Joetsu, Japan), Takahiro Kojima (Joetsu, Japan) and Ayumu Kiyomori (Joetsu, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method for efficiently producing an oxadisilacyclopentane compound at a high yield, comprising reacting an azadisilacyclopentane compound with water, the azadisilacyclopentane compound having the following general formula (1): [R1 to R4 are each independently an unsubstituted monovalent hydrocarbon group having 1 to 4 carbon atoms, and R5 is a hy...