C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 69/44 (2006.01)
Patent
CA 2317747
The invention relates to block-shaped polyester amides with an amide or ester structure, containing the following monomers: aliphatic dialcohols or cycloaliphatic diols and/or aliphatic dicarboxylic acid also in the form of a corresponding ester and/or aromatic dicarboxylic acids also in the from of a corresponding ester and/or hydroxy carboxylic acids and lactone and/or amino alcohols and/or cyclic lactames, and/or .omega. amino carboxylic acids and/or mixtures (1:1 salts) of dicarboxylic acids and diamines, whereby the polyester amides can be obtained by polycondensation of a hydroxy, acid or ester terminated ester block and an amino acid or ester terminated amide block, whereby the ester content of the polyester amide is 20-80 wt. % and the amide content is 80-20 %.
L'invention concerne des polyesteramides en blocs à structure amide ou ester, qui contiennent les monomères suivants: dialcools aliphatiques ou diols cycloaliphatiques, acide dicarboxylique aliphatique, également sous forme de l'ester correspondant, acides dicarboxyliques aromatiques, également sous forme des esters correspondants, acides hydroxycarboxyliques et lactones, amino-alcools, lactames cycliques, acides .omega.-aminocarboxyliques ou bien mélanges (sels dans un rapport 1:1) d'acides dicarboxyliques et de diamines. On obtient les polyesteramides selon l'invention par polycondensation d'un bloc ester à terminaison hydroxyle, acide ou ester et d'un bloc amide à terminaison amino-acide ou ester, la teneur en ester du polyesteramide étant comprise entre 20 et 80 % en poids et la teneur en amide entre 80 et 20 % en poids.
Schulz-Schlitte Wolfgang
Timmermann Ralf
Voigt Michael
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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