Copolyamides

Copolyamide comprising units derived from polycondensation reaction of precursors comprising e.g. terephthalic acid, hexamethylenedimine, and an amino-carboxylic acid and/or a lactam comprising a main chain and a branching alkyl

Abstract

Copolyamide comprising units derived from polycondensation reaction of precursors comprising (a) terephthalic acid, (b) hexamethylenedimine, and (c) an amino-carboxylic acid and/or a lactam comprising a main chain and at least one branching alkyl, where the total number of carbon atom of amino-carboxylic acid and/or lactam (c) is 12-36, (d) optionally amino carboxylic acid and/or lactam different from (c), (e) optionally dicarboxylic acid different from (a), and (f) diamine different from (c), is claimed. Independent claims are included for: (1) a preparation of the copolyamide comprising polycondensation of the precursor comprising (a), (b), (c), optionally (d), (e) and (f); and (2) a composition comprising the copolyamide.
L'invention se rapporte à un copolyamide comprenant les motifs issus de la réaction de polycondensation des précurseurs suivants : - l'acide téréphtalique (a), - l'hexaméthylènediamine (b), et - un acide amino-carboxylique et/ou un lactame (c) comprenant une chaîne principale et au moins une ramification alkyle linéaire ou ramifiée, le nombre total d'atomes de carbone de l'acide amino-carboxylique et/ou du lactame (c) étant compris entre 12 et 36. L'invention se rapporte également à son procédé de préparation et à une composition comprenant un tel copolyamide.

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Patent Citations (1)

    Publication numberPublication dateAssigneeTitle
    FR-2934862-A1February 12, 2010Arkema FranceCopolyamide semi aromatique a terminaison de chaine

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