Reaction modified thermoplastic elastomers

Various applications of the injection molding system have been developed outside the scope of the cure of rubbers, and a few examples are given, with the substitution of thermoset rubbers by thermoplastic elastomers a range of thermoplastic elastomer compounds were introduced and processed using reaction compounding technology. They are called reaction modified thermoplastic elastomers or ReMoTE [5]. 

PU are polymers containing urethane linkages and are available in thermoplastic and thermosetting forms. In 1935, Otto Bayer and coworkers invented PU as a product of the polyaddition reaction between a macroglycol and a diisocyanate. PU are made as castable PU elastomers, PU thermoplastic elastomers and PU engineering thermoplastics. The precursors of standard PU formulations are polyol, polyisocynate, extender and modifier (which are optionally used). 

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