Abstract: A modified bitumen consisting of a polyurethane wherein the polyisocyanate or polyisocyanate-dominated polyurethane prepolymer (or prepolymers) is first reacted with the bitumen to take advantage of the bitumen's hydroxyl and amine functionality and form an isocyanate-bitumen adduct to form a weatherproofing product.

Abstract: Surgical methods involving cutting and sealing tissue include affixing a first adjunct material to tissue at a treatment site, such as by stapling the adjunct to tissue. A second adjunct material is applied to at least a portion of the first adjunct material such that the second adjunct material interacts with the first adjunct material to form a seal in an area of the tissue covered by at least one of the first and the second adjunct material. The resulting tissue sealing structure, which includes a combination of the two adjuncts, is believed to be superior to the sealing properties of either adjunct alone.

Abstract: A flood barrier system for sealing an opening in a wall structure against the inflow of flood waters. The system comprises a plurality of elongated, horizontally disposed barrier elements of a length somewhat greater than the width of the opening. The barrier elements are stacked vertically, one upon the other against the outer face of the wall structure. End clamps engage opposite ends of the individual barrier elements to press them snugly against the outer surface of the wall, providing seals along the opposite vertical side edges of the opening. A simplified clamping mechanism is provided above the uppermost barrier element, with provisions to apply vertically downward clamping pressure on the uppermost barrier element, and thus upon the entire series of vertically stacked barrier elements.

Abstract: An Adjustable flood-resistant barrier for removable installation in a window or door opening or the like. A laterally adjustable frame is received within an elastic envelope and can be laterally expanded to engage the sides and bottom of the opening. An adjusting mechanism includes a shaft, which projects upward above the top of the frame, approximately in the center thereof, and mounts a handle for both carrying the panel and rotating the shaft to effect width adjustments of the panel. An improved peripheral seal minimizes the likelihood of leakage at the corners. For wide openings, mullions are provided to support central areas and to increase downward sealing pressures in the center of the panel. Mullions can also be positioned between an opposed pair of barrier panels for closing off unusually wide openings.