C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 69/44 (2006.01)
Patent
CA 2320846
Statistically structured biodegradable aliphatic-aromatic polyesteramides, comprising the following monomers: aliphatic dialcohols such as ethylene glycol, diethylene glycol, 1-4-butandiol, 1,3-propandiol, 1,6-hexandiol or cycloaliphatic diols such as cyclohexandimethanol and/or aliphatic dicarboxylic acid such as oxalic acid, succinic acid, adipic acid, etc. also in the form of the corresponding esters (methyl, ethyl, etc.) and/or aromatic dicarboxylic acids such as terephthalic acid, isophthalic acid, phthalic acid, etc. also in the form of the corresponding esters (methy, ethyl, etc.) and/or hydroxycarboxylic acids and lactone such as caprolactone, etc. and/or amino alcohols such as ethanolamine, propanolamine, etc. and/or cyclic lactam such as .epsilon.-caprolactam or laurine lactam, etc. and/or .omega.- aminocarboxylic acids such as aminocaproic acid etc. and/or mixtures (1:1 salts) of dicarboxylic acids such as adipic acid, succinic acid, terephthalic acid, etc. and diamines such as hexamethylene diamine, diamino butane, etc., wherein said polyesteramides contain up to 70 mol % aromatic dicarboxylic acids (in relation to the amount of acids).
L'invention concerne des polyesteramides aromatiques aliphatiques biodégradables statistiques, constitués des monomères suivants: dialcools aliphatiques tels que éthylèneglycol, diéthylèneglycol, 1,4-butanediol, 1,3-propanediol, 1,6-hexanediol ou diols cyclo-aliphatiques tels que cyclohexane-diméthanol; acides dicarboxyliques aliphatiques tels que acide oxalique, acide succinique, acide adipique, etc., également sous forme de leur ester respectif (méthylique, éthylique, etc.); acides dicarboxyliques aromatiques tels que acide téréphtalique, acide isophtalique, acide phtalique, etc., également sous forme de leur ester respectif (méthylique, éthylique, etc.); acides hydroxycarboxyliques et lactones tels que caprolactone, etc.; amino-alcools tels que éthanolamine, propanolamine, etc.; lactames cycliques tels que .epsilon.-caprolactame ou laurine-lactame, etc.; acides .omega.-aminocarboxyliques tels que acide aminocaproïque, etc.; et/ou mélanges (sels 1:1) d'acides dicarboxyliques tels que acide adipique, acide succinique, acide téréphtalique, etc., et de diamines telles que hexaméthylènediamine, diaminobutane, etc. Les polyesteramides selon l'invention contiennent jusqu'à 70 mole % (par rapport à la partie acide) d'acides dicarboxyliques aromatiques.
Grigat Ernst
Idel Karsten-Josef
Schulz-Schlitte Wolfgang
Timmermann Ralf
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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