| abstract |
A continuous method of producing polyamide foams by an extrusion foaming process is disclosed. The polyamide foam includes a polyamide resin compounded with a composite chain extender including an epoxy chain extender and a maleic anhydride grafted polypropylene (MAPP) wax. The produced polyamide foams have improved properties, including a smooth surface, low density, and small cell size. |