Hot melt polymers

As was noted earlier, virtually any elastomeric material can be, and probably is currently, made into an adhesive or sealant. All elastomers are soluble in one or more organic solvents which allows the production of a solvent-based adhesive. Many elastomers are polymerized in an emulsion process, which yields a latex. And a number of elastomers have a low enough glass transition temperature to permit use as a hot-melt polymer, or as one ingredient in a hot melt formulation. Summary statements describing a few of these other polymers follow, but without the detail provided for the primary elastomers. 

In coated substrates, the polymer coating is metered and spread evenly onto the fabric surface as a controlled viscosity solution, aqueous emulsion, or hot melt polymer followed by drying and curing if needed. A urethane foam can be bonded to a textile substrate, by carefully melting the foam surface with a flame and joining the melted foam surface to the tex-ti le substrate under pressure followed cool ing. Laminated fabrics are bonded under similar conditions except that two fabric faces are brought together and bonded by the polymer layer used. 

Hot melt (polymers are made to flow at increased temperatures). 

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