AQUEOUS POLYURETHANE DISPERSIONS MADE FROM HYDROXYMETHYL CONTAINING POLYESTER POLYOLS DERIVED FROM FATTY ACIDS

摘要

and polyisocyanates derived from the fatty acid -hydroxymethyl- containing prepolymer formed by reacting a polyester polyol and dispersing the prepolymer in the aqueous phase and , after curing the prepolymer to prepare a polymer dispersion to form a solid particle . Diisocyanate , can be prepared a prepolymer having a hydroxy , or a variety of other reactive functional groups . Dispersions are useful in a variety of coating , sealant , adhesive and elastomer applications .