Abstract: What is disclosed is a method for preparing antimicrobially effective foams using certain silanes as co-catalysts, co-surfactants and antimicrobial agents to give soft, resilient, fine-celled foams that are capable of reducing the number of, or eliminating, microorganisms in all types of media. Such foams themselves are not susceptible to attack by the microorganisms. An example is the use of (CH.sub.3 O).sub.3 Si(CH.sub.2).sub.3 N.sup..sym. (CH.sub.3).sub.2 C.sub.18 H.sub.37 Cl.sup.- in a flexible polyurethane foam formulation to give a fine-celled, soft, resilient foam which is antimicrobially effective over a long period of time.

Abstract: A polyether based polyurethane foam is disclosed which contains high levels of reinforcing graft copolymer polyols. The graft copolymer polyol serves to open cells and to add firmness to the foam. This foam is stabilized by incorporating a blend consisting essentially of 3 to 22 weight percent of a surfactant designed for conventional urethane foams, with 78 to 97 weight percent of a surfactant designed for molded high resiliency urethane foams. The surfactants are of the polysiloxane-polyoxyalkylene copolymer type. The method of preparing this foam is also disclosed.

Abstract: An improved molding process is provided which comprises treating a mold surface with certain curable silicone compositions to improve the release of a molded article from the mold. The curable silicone release composition is obtained by mixing a vinyl-endblocked polydiorganosiloxane, a xylene-soluble vinyl-containing resinous polysiloxane, a methylhydrogenpolysiloxane crosslinking agent and a hydrosilylation catalyst. The curable silicone release composition is easily applied to and rapidly cured onto the mold surface and, when cured, provides many easy releases of molded articles such as high resiliency polyurethane foam cushions, polyurethane elastomeric shoe soles and polyester boat hulls.