Assertion: thermoset polymer | /r/ObjectUse | used in structural composites
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text: The foremost types of thermosetting polymers used in structural composites are benzoxazine resins, bis-Maleimide resins (BMI), cyanate ester resins, epoxy (epoxide) resins, phenolic (PF) resins, unsaturated polyester (UP) resins, polyimides, polyurethane (PUR) resins, silicones, and vinyl esters.