Hollow tube i.e. sun visor axle, has outer layer made of polyamide loaded with specific percent of glass fibers, and inner layer unloaded polyamide

摘要

The tube has an outer layer (10) made of plastic material i.e. polyamide, loaded with 20-50 percent of fibers i.e. glass fibers, and an inner layer (20) unloaded plastic material i.e. unloaded polyamide 6. An independent claim is also included for an injection molding method for manufacturing a hollow tube.