Abstract: Described herein is a method of using copolyamides c) produced by polymerization of components A?) 15% to 84% by weight of at least one lactam, and B?) 16% to 85% by weight of a monomer mixture (M) including components B1?) at least one C32-C40-dimer acid and B2?) at least one C4-C12-diamine, where the percentages by weight of the components A?) and B?) are in each case based on the sum of the percentages by weight of the components A?) and B?), the method including using the copolyamides c) to increase an impact strength and/or breaking elongation of molded articles made of molding materials including thermoplastic polyamides, which are different from copolyamides c).

Abstract: Described herein is a method of using copolyamides c) produced by polymerization of components A?) 15% to 84% by weight of at least one lactam, and B?) 16% to 85% by weight of a monomer mixture (M) including components B1?) at least one C32-C40-dimer acid and B2?) at least one C4-C12-diamine, where the percentages by weight of the components A?) and B?) are in each case based on the sum of the percentages by weight of the components A?) and B?), the method including using the copolyamides c) to increase an impact strength and/or breaking elongation of molded articles made of molding materials including thermoplastic polyamides, which are different from copolyamides c).

Abstract: Disclosed herein is an energy-absorbing component for absorbing energy of impacts thereon, where the energy-absorbing component can be plastically deformed by an impact and optionally can undergo at least some extent of destruction. The energy-absorbing component contains at least one core structure and at least one ancillary structure. The at least one core structure is manufactured from a first material which is a metal or is a polymer reinforced with continuous-filament fibers, and the at least one ancillary structure is manufactured from a second material which is an unreinforced polymer material or is a polymer material reinforced with short fibers or with long fibers. The at least one ancillary structure may include ribs and may be bonded to at least one core structure, so that the at least one ancillary structure supports the at least one core structure connected thereto. Processes for producing the energy-absorbing component are also disclosed.