Sprayable foam

A basic composition and a technique for mixing and foaming were developed for an insulating foam applied by spraying. The material is based on the use of the synthetic raw materials. A standardized procedure for obtaining polyurethane foams 

FIGURE 4.3 Images of the fractured surfaces of the cured compositions at 20,000x magnification (AURIGA CrossBeam) (A) epoxy-silane-amine composition, (B) neat epoxy-amine composition. (Reprinted from E. Delebecq, J-P. Pascault, B. Boutevin, and F. Ganachaud, On the Versatility of Urethane/Urea Bonds Reversibility, Blocked Isocyanate, and Non-Isocyanate Polyurethane, Chem. Rev. 113 (2013) 80-118. With permission.) 

The composition of the foam was studied by the use of renewable raw materials, including new HUM. As a result, hard and elastic foams were obtained with properties not inferior to polyurethane foams. The foams were produced in the laboratory only (Table 4.9). 

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Manufocturers Comments Tough, elastic bond. High strength. Sprayable. Foaming (FoamMelt. ... 

These organic solvent-based adhesives are very easy to apply and find wide application in general industry. Whenever a variety of different materials has to be stuck together quickly and easily, organic solvent-based adhesives will often be the answer. The footwear industry uses them for sticking soles to uppers and many other operations. The automotive industry uses them for stick-on trim and a variety of other jobs. Foam-seat manufacturers use these adhesives in brushable and sprayable form. Paper converters employ solvent-based permanently tacky adhesives in the manufacture of labels and sticky tapes. 

Nachtman, T.J., Hull, J.H., and O Shea, P. (2000) Sprayable composition and method for forming a foamed outdoor protective cover layer, US Patent 6,096,373. 

Uses Binder, thickener, pigment, foam/filler stabilizer, dispersant, emulsifier, plasticizer, vise, control agent, sedimenting aid, protective colloid in coatings, paints, resins, mining, batteries, insecticidal prods., rubber, textile, leather, ceramics, suspension polymerization, pharmaceuticals adhesion promoter in tile cements water retention aid, thickener in sprayable plasters, mortar, stucco, fillers vise, control agent, stabilizer in cosmetics... 

Anderson, T.F., Walters, H.A., and Glesner, C.W. (1970) Castable, sprayable, low density foams and composites for furniture, marble, marine. Journal of Cellular Plastics, 6, 171-178. 

Coagulants For some applications (e.g. plastic foam processing), sprayable polychloroprene latex dispersions must be used. In this process, a fast coagulation of latex particles... 

An environmentally friendly commercial roofing system has been commercially developed by West Development Group [67]. The roof comprises a soy-based spray polyurethane (PU) foam with a sprayable solvent-free silicone top coat containing recycled EPDM granules forming a water-resistant, seamless, self-flashing seal. 

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