Polyamide concentrates containing sulphonate groups

Details Polyamide concentrates containing sulphonate groups Polyamide concentrates containing sulphonate groups

C - Chemistry, Metallurgy

08

G

402/225

C08G 69/28 (2006.01) C08G 69/42 (2006.01)

Patent

CA 1036748

ABSTRACT OF THE DISCLOSURE The invention relates to high molecular weight polycaprolactams containing monomeric units of the general formulae (I) and (II): Image Image (I) (II) in which: M is an alkali metal; and R is an alkylene radical having from 4 to 12 carbon atoms or the radical. where M is as defined above, Image the polymer having a relative solution viscosity of from 1.1 to 3.5 (as measured on solutions of 1 g of polyamide in 100 ml of m-cresol at 25°C) and containing sulphonate groups in a concentration range of from 40 to 2000 mval per kilogram of polymer. The polyamide concentrates containing sulfonate groups and in particular the modified polycaprolactams can be dyed with basic dyes and processed from the melt to form shaped articles such as films or fibres.

206210

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