WebFeb 9, 2024 · with other crosslinking agents. Blocked isocyanates,8 acrylosilane,9 and epoxy/carboxy10 systems have been described in the literature. In addition to retaining … WebBlocked isocyanates are unblocked by heating the formulation to initiate the curing reaction usu- ally with a polyol. Catalysts are used to promote the unblocking and curing reactions to enable them to proceed at lower temperatures and/or faster curing times. It is difficult to find a catalyst that has little or no activity at ambient tempera-

New water-based dispersions for high-quality PU systems

WebLamberti crosslinkers are blocked polyisocyanate, stable and easily dispersible in water-based systems. The products can be added during production and can be used in coating and printing applica-tions as well as booster for water-repellent treatments. The advantages of Lamberti blocked isocyanate are: • Long shelf life • One component system luxthos priest weakaura

US5554692A - Blocked isocyanate crosslinkers based on

WebThe dual crosslinking behavior and mechanical properties of HFUMO-based coatings using BL-Tri-cHD were compared with those of a commercial blocked isocyanate thermal crosslinker (Desmodur® BL … WebOur range of water-based blocked isocyanate dispersions can be used as crosslinkers and adhesion promoters for coatings and finishes on flexible and hard substrates. The … WebPhysical Attributes of Blocked Isocyanates Allnex’s Isocyanate Blocking Material Physical State Melting Point °C TMI® MEKO Liquid – 3,5-Dimethylpyrazole Liquid – n-butanol Solid ~ 27 Methanol Solid ~ 37 t-butanol Solid ~ 60 ε−Caprolactam Solid ~ 70 Nonylphenol Solid ~ 80 TMXDI® MEKO Resinous – n-butanol Solid ~ 68 ε−Caprolactam ... jean westcott jeopardy