Abstract: Foamed polyurethane articles, such as a sponges, sheets, tapes or ribbons, blocks or other molded, extruded or cast article which foamed polyurethane articles exhibit an antimicrobial benefit and are particularly useful in the formation of cleaning articles. Processes for the manufacture of such cleaning articles based on hydrophilic polyurethane foams exhibit an antimicrobial benefit and their use are also described.

Abstract: A method for power plant usage planning of a power plant fleet having a plurality of power plants is provided. The current control technology values are supplied to models for lifespan calculations, maintenance information is derived from the lifespan calculations and the maintenance information is taken into consideration in a calculation for power plant usage planning.

Abstract: Foamed polyurethane articles, such as a sponges, sheets, tapes or ribbons, blocks or other molded, extruded or cast article which foamed polyurethane articles exhibit an antimicrobial benefit and are particularly useful in the formation of cleaning articles. Processes for the manufacture of such cleaning articles based on hydrophilic polyurethane foams exhibit an antimicrobial benefit and their use are also described.

Abstract: Foamed polyurethane articles, such as a sponges, sheets, tapes or ribbons, blocks or other molded, extruded or cast article which foamed polyurethane articles comprising one or more quaternary ammonium compounds having germicidal properties and are particularly useful in the formation of cleaning articles. Processes for the manufacture of such cleaning articles based on hydrophilic polyurethane foams exhibit an antimicrobial benefit and their use are also described.

Abstract: A composite biosorption material is formed of a hydrophilic urethane binder containing immobilized bioactive organisms of at least about one micron in size and having active sites for binding and removing noxious materials such as metal ions from an effluent such as a waste water stream. To form the composite, a prepolymer is prepared by heating polyethylene glycol, having an average molecular weight of about 1000, to over 200.degree. F. up to 350.degree. F., preferably greater than 220.degree. F., and reacting a diisocyanate with the heated polyethylene glycol while mixing to form the prepolymer. After cooling, the prepolymer is mixed with an aqueous slurry containing the organisms such as Datura innoxia cells, and optionally a surfactant and bactericide, in a weight ratio such as 1:1 to 6:1, and the resultant mixture is cured to form the composite material containing a dry weight of the organisms such as about 15% to 90%.