| abstract |
The invention relates to a continuous process for producing polyamide foams by an extrusion foaming process. The polyamide foams comprise a polyamide resin composed of a composite chain extender including an epoxy chain extender and a maleic anhydride grafted polypropylene (MAPP) wax. The polyamide foams produced have improved properties, including smooth surface, low density, and small cell size. |