ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,240, issued on April 22, was assigned to SEKISUI FULLER COMPANY LTD. (Tokyo).

"Synthetic resin composition, fire-proof material, sealing material, adhesive, and joint structure" was invented by Takuto Ikeuchi (Shiga, Japan) and Yukihiko Murayama (Shiga, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a synthetic resin composition from which a combustion residue produced by combustion is rigid. The synthetic resin composition of the present invention is configured such that the strength of the combustion residue of the composition after combustion in an atmosphere of 800deg C. for 20 minutes is 0.5 N/mm2 or more. Th...