METHOD FOR POLYAMIDE PRODUCTION Russian patent published in 2005 - IPC

Abstract RU 2258072 C1

FIELD: organic chemistry, structural materials.

SUBSTANCE: claimed polyamide is obtained by copolymerization of ε-caprolactam and 2,4-toluylenediisocyanate in mass ratio of (95-95):(3-5) in presence of ε-caprolactam sodium salt at 180±5)°C up to exhausting of lactam cycles. Then reaction mass is heated for 2 h.

EFFECT: polyamides with increased elongation and failure stress; as well as with various physical and mechanical properties.

2 tbl, 8 ex

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RU 2 258 072 C1

Authors

Barnjagina O.V.

Galibeev S.S.

Kochnev A.M.

Arkhireev V.P.

Galimov L.R.

Gafarov A.M.

Dates

2005-08-10—Published

2004-03-22—Filed