US Patent Issued to DUPONT SAFETY & CONSTRUCTION, DDP SPECIALTY ELECTRONIC MATERIALS US on Feb. 24 for "Foam envelope for sealing large volumes" (Swiss, Luxembourger Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,935, issued on Feb. 24, was assigned to DUPONT SAFETY & CONSTRUCTION INC. (Wilmington, Del.) and DDP SPECIALTY ELECTRONIC MATERIALS US LLC (Wilmington, Del.).

"Foam envelope for sealing large volumes" was invented by Eric Huebsch (Medingen, Luxembourg), Lars Massueger (Zurich) and Cedric Thomi (Sezenove, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "An article comprises a tube having peripheral areas, including an upper section, a lower section, an inner section, and an outer section, the tube further comprising a tube wall having an outer layer of a semipermeable membrane that is permeable to vapors but impermeable to liquids, and the ...