| abstract |
Thermoplastically processable elastomeric block copolyetheresteretheramides from recurring units of the formula <IMAGE> in which <IMAGE> represents a polyamide segment containing terminal carboxyl groups and having an average molar mass of 700 to 10 000, -O-E-O- is a poly-(oxytetramethylene)-segment having an average molar mass of 600 to 3 500, -NH-F-NH- represents a poly-(oxy-1,2-propylene)-segment containing terminal amino groups and having an average molar mass of 350 to 2 500, x and y are integers from 3 to 35 and indicate the number of the respective, randomly arranged, recurring units, the ratio x:y of components A and B varying between 5:1 and 1:5. The ether amides of the present invention can optionally be mixed with additives, fillers, modifiers, or other compatible polymers normally used in the processing of polyamides and which are suitable for the production of molded articles, for example by injection molding, coinjection, extrusion, blow molding, etc. |