PUR Adhesives: Polyurethane-reactive Adhesives | 3M
Polyurethane reactive adhesives (PUR adhesives; also called reactive hot melts, reactive polyurethanes or RPU adhesives) are one-part formulations that combine the initial speed of a hot melt adhesive with the strength of a structural adhesive.
Eastman Plasticizers for Polyurethanes
Benzoflex - TPU-405 Plasticizer Benzoflex TPU-405 is recommended as a plasticizer for Thermoplastic Urethane (TPU) applications that require an extension of the durometer range commonly attributed to TPUs Product availability by region: Asia Pacific | Europe, Middle East, & Africa | Latin America | North America
K-Flex | Optimized plasticizers | LANXESS
K-FLEX : Environmentally-friendly plasticizers that deliver value. K-FLEX plasticizers optimize your manufacturing processes and the properties of your end-products. They are highly compatible with polar polymers in water-based adhesive systems and they improve the film formation of paints and coatings.
Urethane/Rubber Plasticizers PB-3A, W-260, W-262, W-320
Monocizer PB-3A excels in compatibility as a plasticizer for polyurethane such as TPU, and it can even be used in two-part liquid urethane rolls for cast molding. Monocizer W-160, W-262, and W-320 compatibilize with polar rubbers (NBR, acrylic rubber, hydrin rubbers, others) and has an excellent balance of heat resistance, cold resistance, and
Hot melts | Technology by Covestro | Covestro AG
Reactive polyurethane hot melts are produced by reacting polyols with isocyanates (predominantly monomeric MDI), leading to NCO prepolymers with a typical residual NCO content of 2–5%. After hot application in the molten stage, initial bond strength is created by solidification and crystallization.
- What is a reactive plasticizer?
- Learn more. This review is about the reactive plasticizer. Plasticizers are small molecules with low molecular weight. These compounds typically have an esteric structure. The plasticizers reduce the glass transition temperature, and the viscosity of the polymer also enhances the flexibility and processability of polymer materials.
- How can plasticizers reduce migration?
- Various strategies, such as increasing molecular weight of plasticizer, selection of oligomeric structure for plasticizer, and adding nanoparticles of minerals, have been investigated to reduce and eliminate migration. An approach that has recently been of great interest to researchers is the use of reactive plasticizers.
- Why do polymers need plasticizers?
- The plasticizers reduce the glass transition temperature, and the viscosity of the polymer also enhances the flexibility and processability of polymer materials. The main problem of these additives is that, over time, they migrate from the polymeric matrix and exude to the surface of polymeric matrix.
