Linear copolyesters based on terephthalic acid and/or isophthali

Chemistry of carbon compounds – Miscellaneous organic carbon compounds

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C08G 6368

Patent

active

040026000

ABSTRACT:
New linear copolyesters containing amide groups are obtained by polycondensing certain dicarboxylic acid diamides which are obtained by reaction of 1 mol of an aromatic, cycloaliphatic or cycloaliphatic-aliphatic diamine with 2 mols of terephthalic acid, isophthalic acid or their polyester-forming derivatives, together with terephthalic acid, isophthalic acid or their polyester-forming derivatives and with alkanediols to a relative viscosity greater than 1.2. The new copolyesters containing amide groups are valuable engineering thermoplastic materials which are easily processible and give moulding materials with good thermo-mechanical properties.

REFERENCES:
patent: 2851443 (1958-09-01), Williams et al.
patent: 2861055 (1958-11-01), Williams et al.
patent: 2956984 (1960-10-01), Reynolds et al.

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