Polyamides comprising me-bht, compositions comprising such a polyamide, shaped articles comprising such a polyamide or such a composition

A composition, comprising

• at least 20% by weight of a polymer chosen from polyamide, polyimide and polyamideimide, obtained through polymerisation of at least one alkyl-BHT diamine monomer chosen from methyl-bis hexamethylene triamine, ethyl-bis hexamethylene triamine, n-propyl-bis hexamethylene triamine and/or i-propyl-bis hexamethylene triamine, the amount of recurring units derived from alkyl BHT diamine monomer being more than 1 mol % relative to the total mole amount of recurring units of the polymer derived from diamine monomers, and at least one polycarboxylic acid, chosen from aliphatic polycarboxylic acids, aryl polycarboxylic acids, alkylaryl polycarboxylic acids and arylalkyl polycarboxylic acids,
• optionally phosphorous acid, and
• at least 0.1% by weight of additional compound(s), wherein the % by weight are based on the total weight of the composition.

A shaped article comprising of a polymer chosen from polyamide, polyimide and polyamideimide, wherein the polymer is obtained through polymerisation of at least:

• a. one or more alkyl-BHT diamines selected from methyl-bis hexamethylene triamine, ethyl-bis hexamethylene triamine, n-propyl-bis hexamethylene triamine and/or i-propyl-bis hexamethylene triamine, and
• b. one or more polycarboxylic acids selected from aliphatic polycarboxylic acids, aryl polycarboxylic acids, alkylaryl polycarboxylic acids and arylalkyl polycarboxylic acids,
• said polymer comprising a minimum amount of recurring units derived from alkyl-BHT diamine of 1 mol % relative to the total mole amount of recurring units of the polymer derived from diamine monomers.