Abstract: Half-ester reaction products possessing unique adhesive properties are obtained by reacting maleated alpha-olefins with hydrocarbylpolyoxyalkylenealkanols. The half-ester in combination with other thermoplastic materials provide improved hot-melt formulations. Paper stocks contaminated with these hot-melt formulations can be recycled into a high grade paper pulp by conventional alkaline repulping processes. The half-ester products are also useful as a solvent in thermoplastic polymerization processes.

Abstract: A method of protecting a surface from a heat source by adhering a refractory heat-insulating material to the surface using an adhesive consisting essentially of 20 - 90% by weight aqueous alkali metal silicate solution 10 - 80% by weight of a powdered metal and up to 15% by weight of a fibrous refractory material.

Abstract: Disclosed is a method particularly useful in fabricating microwave components for joining two metallic surfaces together to form an extremely strong bond, having good electrical and mechanical characteristics. One surface is primed or prepared with a suitable primer. An alloy adhesive, such as a polyamide-epoxy, is either deposited on the prepared surface or, if the adhesive is in film form on a release paper, then the film and release paper are heat tacked or ironed onto the prepared metallic surface. The paper release backing is then removed and the two metallic surfaces are mechanically assembled and positioned within a vacuum bag. The bag is evacuated and subjected to normal atmospheric pressure (14 psi) and heated to approximately 350.degree. for 1 hour whereupon the component is allowed to cool to 100.degree.F at which time the vacuum may be released and the component removed from the bag.

Abstract: A method for treating a surface of a substrate to render it nonfogging and the resulting article formed by the treatment. A thin film coating of a block copolymer containing alternating blocks of polyurethane and a hydrophilic copolyacrylic is adhered to the surface to be made nonfogging. The copolyacrylic is a copolymer of a hydroxy substituted acrylate and an ethylenically unsaturated acid such as acrylic acid. By varying the weight ratio of polyetherurethane/copolyacrylic it is possible to vary the flexibility of the coating and hence to widen the range of substrates to which the treatment is applicable, e.g., from flexible wrapping material to rigid mirrors.

Abstract: A method for obtaining a supported turf or carpet-like structure which comprises placing a layer of molten plasticized sulfur on a surface and then placing synthetic turf or carpet-like material, having its own backing, on the layer of plasticized sulfur.