Jeffamine D-230 Polyoxypropylenediamine 9046-10-0 Huntsman Crosslinking / Coupling / Curing Agents >> Amines /Amides >> aliphatic Epoxy (EP) ADHESIVE >> Hot-melt JEFFAMINE D-230 polyoxypropylenediamine is one of a family of Huntsman Corporation’s polyamines having as their backbones repeated oxypropylene units. As shown by the above structure, JEFFAMINE D-230 is a difunctional primary amine having an average molecular weight of approximately 230. Its amine groups are located on secondary carbon atoms at the ends of an aliphatic polyether chain. JEFFAMINE D-230 is light in color, low in viscosity and vapor pressure, high in primary amine content, and completely miscible in a wide variety of solvents, including water. JEFFAMINE D-230 polyoxypropylenediamine undergoes reactions typical of primary amines. Because of its unique structure, however, JEFFAMINE D-230 has found its most significant use as an epoxy curing agent. The use of JEFFAMINE D-230 leads to tough, clear, impact-resistant coatings, castings, and adhesives. JEFFAMINE D-230 has found its way into miniature medical devices, industrial floors, boat construction, decorator clocks, and space vehicles. Epoxies formulated with JEFFAMINE D-230 can be readily modified because JEFFAMINE D-230 is compatible with a wide range of modifiers and curing agents, including other JEFFAMINE products. Amidation of JEFFAMINE D-230 with a variety of aliphatic and aromatic carboxylic acids is readily accomplished by known techniques. The resulting poly-amides are of interest as “hot melt” adhesives, for example. As a primary amine, JEFFAMINE D-230 reacts quickly with isocyanates. The reaction can be managed, however, if small quantities are used (e.g., as a viscosity modifier) or if quick-mix equipment (e.g., RIM) is employed. Salts may be formed readily which have potential use, e.g., as surfactants and fire retardants. The reactivity of JEFFAMINE D-230 may be modified by cyanoethylation, a reaction which proceeds readily and cleanly. Polyurea coatings have been made from the cyanoethylated derivative. Low vapor pressure difunctional primary amine. Used as an epoxy curing agent. Provides tough, clear, impact-resistant adhesives. Offers compatiility with a wide range of modifiers and curing agents. Reacts quickly with isocyanates.