Nylon cyangwa Polyamide ni umuryango munini cyane, Polyamide 6.6 na 6 yakoreshejwe cyane mubudodo bwinganda.Muburyo bwa chimique, Polyamide 6 ni monomer imwe ifite atome 6 za karubone.Polyamide 6.6 ikozwe muri monomers 2 hamwe na atome 6 ya karubone imwe, bikavamo izina rya 6.6.