Patent ID: 8476377

Claim:
Transparent crosslinked polyamide molded part produced from a thermoplastic polyamide molding composition, wherein said thermoplastic polyamide molding composition is transparent and comprises a blend of: (a) one of an amorphous polyamide, a transparent microcrystalline polyamide, a copolyamide of an amorphous polyamide and a transparent microcrystalline polyamide, or a blend thereof, and (b) a semicrystalline polyamide, said semicrystalline polyamide being present in the transparent blend of (a) and (b) in an amount of 1 to 40 wt. %, said amorphous polyamide or said transparent microcrystalline polyamide or said copolyamide of (a), and said semicrystalline polyamide of (b) i. being non-aromatic and being devoid of N-alkoxyalkyl substituted amide groups, and ii. having a substantially linear structure and being constructed from monomers devoid of olefinically unsaturated C═C double bonds, wherein the polyamide molding composition comprises a cross-linking additive, the polyamides in said polyamide molded part being cross-linked by said cross-linking additive as a result of electron irradiation, and wherein said cross-linked polyamide molded part has a Tg value of >140° C. and a minimum dimensional stability of 90% at temperatures of ≧180° C.