ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,703,775, issued on Aug. 11, was assigned to S.B.Sheet Waterproof Systems Co. Ltd. (Tokyo).
"Waterproof sheet, resin composition, and sealing material" was invented by Hidekiyo Tengyu (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A waterproof sheet of the present invention can be applied to a waterproof sheet 30 to be included in a sheet waterproofing structure 10 that provides waterproofing to a building frame 100. The waterproof sheet of the present invention contains a vinyl chloride-based resin and a plasticizer. The plasticizer includes a (meth)acrylic acid ester-based polymer. The acrylic acid ester-based polymer is preferably an acrylic ac...