Pest-resistant polyurethane spray foam formulations and products, including building insulation, are described. The “B” side of the formulation comprises water; a polyol composition comprising one or more polyols selected from glycerin-sucrose polyols, Mannich polyols, and aromatic polyester polyols, catalyst(s); surfactant(s); a blowing agent; and 0.5 to 5 wt.%, based on the amount of spray foam formulation, of a composition comprising a capsaicin compound. Capsaicin compounds can be successfully incorporated into spray foam formulations that process well to give high- quality foams. The foams inhibit termite infestation and can help to minimize or avoid structural damage that might otherwise go undetected.

A method and apparatus for applying a foamed mixture of paints on a structural surface. A continuous stream of high velocity gas moves through a nozzle and is directed toward the structural surface, and two or more paints may be intermittently moved into the gas stream of the nozzle and aerated and mixed with each other and moved with the gas stream to form a foam that is applied to the structural surface. The components of the foamed mixture may include single component or plural component materials such as polyurethane foam, adhesive, and polyurea formulations, and may be moved through a volumetric metering device consisting of material heaters, a heated hose, and an applicator gun. The nitrogen gas stream fluidizes the mixture as it passes through and out of the nozzle and forms the mixture into a foam that is applied to the structural surface.

The present invention provides CMP polishing pads or layers having a unfilled Shore D (2 second) hardness of from 57-77 or a filled Shore D (2 second) hardness of from 18-50, made from a two-component reaction mixture of (i) a liquid aromatic isocyanate component comprising one or more aromatic diisocyanates or a linear aromatic isocyanate-terminated urethane prepolymer having an unreacted isocyanate (NCO) concentration of from 18 to 47 wt. %, based on the total solids weight of the aromatic isocyanate component, and (ii) a liquid polyol component including one or more curatives selected from the group of amines defined by Formulas (I) and (II).

A method of applying a closed cell spray foam insulation may include spraying a first layer of a closed cell spray foam insulation into a wall cavity. A B-side mixture of the closed cell spray foam insulation may include a polyol blend having a polyester polyol having a functionality of at least about 3.0 and a polyether polyol. The method may include spraying at least one additional layer of the closed cell spray foam insulation against the first layer within 5 minutes of spraying the first layer.

A novel polymerizable composition, which can be used in 1K aerosol can systems for forming a foam, include a reactive precursor mixture, which is subjected to one or more deoxygenation measures so that it does not react during storage, and an alkyl metal compound, such as an organic borane compound as initiator. Since the initiation of the polymerization is enabled by oxygen, particularly oxygen from ambient air, the curing of the composition is not dependent on ambient moisture and proceeds even at low temperatures, including those below 0° C. The composition has a fast curing time when contacted with oxygen or air, and the resulting final cured product has a high quality.

An object is to provide a non-red phosphorus type flame retardant composition for polyurethane foam that does not undergo dripping ignition and readily forms a carbonized layer when the polyurethane foam is burned and a flame-retarded polyurethane foam containing the flame retardant composition for polyurethane foam. As a solution, a flame retardant composition for polyurethane foam having high carbonization properties, the flame retardant composition for polyurethane foam containing a phosphorus compound represented by formula (1), is provided.

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(In formula, M is Mg, Al, Ca, Ti, or Zn, and m is 2, 3, or 4.)

Described herein is an isocyanate composition, a polyurethane foam obtained therefrom and a method of using the polyurethane foam in an article.

Described herein are processes for producing cold-flexible polyurethane insulation, in which (a) polyisocyanates are mixed with (b) compounds having groups which are reactive to isocyanates, (c) blowing agents, (d) catalysts, (e) plasticizers and optionally (f) further additives to give a reaction mixture and the mixture is applied to a surface and cured to form insulation. Also described herein is a polyurethane insulation obtainable by a process described herein.

The present application provides foams having improved insulation and thermal performance and processes of forming said foams. Exemplary foams described herein are prepared according to a process comprising reacting or extruding a foamable composition comprising (i) a compound selected from E-CHCl═CHCF.sub.3, Z—CF.sub.3CH═CHCF.sub.3, and E-CF.sub.3CH═CHCF.sub.3, or any mixture thereof, and (2) a C.sub.5 hydrocarbon (e.g. cyclopentane), under conditions effective to form the foam.

A sealing system for joints of joinery construction elements, especially windows and exit doors, includes an insulating material, an internal sealing layer disposed over an interior surface of the insulating material and an external sealing layer disposed over an exterior surface of the insulating material. The internal sealing layer has a low vapor permeability with an equivalent diffusion resistance factor (Sd) equal to or greater than 30 m, and the external sealing layer has a vapor permeability greater than the vapor permeability of the internal sealing layer with an equivalent diffusion resistance factor (Sd) not greater than 2 m.