Abstract: The microbicidal activity of iodophors is enhanced by the inclusion therein of certain alkyl and alkoxyalkyl tertiary amine oxides. The presence of the tertiary amine oxides also enhances the retention of the amount of available iodine during storage. The improved iodophors are useful as disinfectants for surfaces, tools, and utensils, and as surgical scrubs.

Abstract: Filled detergent hydrophilic flexible polyurethane foams having a reduced and controlled rate of release of detergent from the foam are provided.

Abstract: A rigidized convoluted foam suitable as a self-standing filter is made by passing a sheet of air-permeable flexible polyurethane foam through a convoluting machine to obtain two unnested sheets of convoluted foam, each sheet being convoluted on only one side. The two sheets are nested and impregnated from the flat surface of each sheet almost to the closest valley surface with a thermosetting melamine, urea, or benzoguanamine resin in an amount to not appreciably impair the permeability of the foam and to increase the rigidity of the foam sufficiently so that each unnested sheet will be self-standing. After the resin has reacted, the nested sheets are separated.

Abstract: A fabric-conditioning article useful for treating textile fabrics during the drying cycle in a clothes dryer, to render the fabrics soft and static-free, comprises a sheet of flexible and resilient polyurethane foam at least one side of which has been coated with at least one fabric conditioning agent. The foam sheet is essentially free of conditioning agent in its center core, and preferably is coated on both sides.

Abstract: Flexible polyurethane foam having reduced tendency to form burning embers when it is ignited and burned is provided by incorporating into the reaction mixture before foaming a derivative of melamine wherein one or more hydrogens have been replaced by hydroxymethyl and/or lower alkoxymethyl groups.In one embodiment, flexible polyurethane foams of increased flame retardance are also provided, by also incorporating a halogenated phosphorus ester into the reaction mixture before foaming.

Abstract: There is disclosed a one-shot process for the manufacture of a filled detergent hydrophilic flexible polyurethane foam from a clay filler, an alkylaryl sulfonate detergent, a normally liquid polyether polyol, tolylene diisocyanate and water as a blowing agent.

Abstract: A layer of open cell polyurethane foam adhered to a layer of a non-woven fibrous material of fine porosity relative to the foam results in an efficient fluid (e.g., air) filtering medium having a high capacity for retaining particulate contaminants. The combined layers are useful as an air filter element.

Abstract: The invention provides a polyurethane foam of increased rigidity.The invention is provided by impregnating a flexible polyurethane foam with a thermosetting melamine, urea or benzoguanamine resin and a cross-linker, and then reacting the resin with the cross-linker.

Abstract: A simulated shingle arrangement having novel interlocking connections between adjacent shingles in the same course as well as between adjacent shingles in adjacent courses is provided. The arrangement can comprise individual shingles each having the novel interlocking connecting means as an integral part thereof, but preferably comprises elongated panels each simulating a plurality of individual shingles in side-by-side relation. As in the case of individual shingles, the novel interlocking connecting means forms an integral part of such elongated multi-shingle panels. The outer surface of the shingles can simulate the appearance of conventional shingles, such as cedar shakes, as desired.

Abstract: Flexible, substantially nonlustrous, open-celled polyurethane foam made by an in situ process is rendered permanently flame-retardant by the incorporation of tribromoneopentyl alcohol into the reaction mixture.

Abstract: The resiliency and permeability of flexible polyurethane foams prepared from polyether polyols are improved by including a minor proportion of a polyester polyol in the reaction mixture.