Pripol 1017 Dimerized fatty acid Uniqema Polymer intermediates ADHESIVE >> Hot-melt ADHESIVE >> Solvent based ADHESIVE >> Water-based PRIPOL dimer acids - are the major building block for polyamide hot melt adhesives, which are used in applications such as automotive, electrical & electronic, footwear and general industrial product assembly. PRIPOL™ - C36 dimer fatty acids and dimer diol Specialty long chain di-acids used to manufacture polyester polyols and used as building blocks or modifying agents for resins such as polyamides, polyesters and epoxies. Applications include hot melt adhesives, coatings and ink resins. Uniqema is an established supplier to the manufacturers and formulators of adhesive resins. When incorporated into an adhesive, dimerised fatty acids offer the following benefits: better adhesion better bond stability better durability Better adhesion is achieved by the improved flow behaviour between the adhesive brought by dimer. As a result, the contact between surface and adhesive is optimum. Better bond stability is brought by the flexibility that comes with the dimer building block. This allows absorption of mechanical stress, even at very low temperatures. Durability of the adhesive bond is improved by dimer’s intrinsic water repellancy, and its inertness towards oxygen and heat. Uniqema’s PRIPOL C36 dimer fatty acids are widely used in polyamide hotmelt adhesives. Conventional polyamides tend to have too high a melting point to be of practical value as hotmelt adhesives. The incorporation of PRIPOL dimer acid allows the synthesis of polyamides within a practicable range of melting points. As a consequence, the inherent benefits of polyamide (strength and a narrow melting range) can be fully exploited. The Uniqema dimer products for polyamide hotmelt applications include PRIPOL 1017, 1013 and 1006. Other adhesive applications are to be found in two component epoxy resin systems. In polyester hotmelts dimer acid provides flow properties, flexibility and hydrolytic stability as it does for polyamides. The suggested building block for this application is PRIPOL 2033, which is a dimer diol. A fourth adhesive technology that can benefit from applying PRIPOL dimer acids is that of the rapidly growing category of polyurethane adhesives (either hotmelt, dispersion type, or solution type). Inclusion of dimer acid derived building blocks bring performance that is not achievable with conven-tional adipate type polyesters, notably in areas such as: hydrolytic stability glass transition temperature flow properties Dimer fatty acid. Used as a building block and as a modifier for polyamides, two component epoxy resin systems, polyesters hot melt adhesives, and for hotmelt, solution and dispersion polyurethane adhesives. Improves adhesion, bond stability and durability. Offers water repellancy, and protection against oxygen and heat. Provides flow properties, flexibility and hydrolytic stability.