Thermoplastically processable elastomeric block copolyetherester

Details Thermoplastically processable elastomeric block copolyetherester Thermoplastically processable elastomeric block copolyetherester

1992-12-09

1994-07-19

Carrillo, Ana L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525408, 5254205, 525434, 528288, 5282953, 528324, 528325, C08L 6700, C08L 7700

Patent

active

053310616

ABSTRACT:
Thermoplastically processable elastomeric block copolyetheresteretheramides from recurring units of the formula ##STR1## in which ##STR2## 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.

REFERENCES:
patent: 4346024 (1982-08-01), Coquard et al.
patent: 4361680 (1982-11-01), Borg et al.
patent: 4740582 (1988-04-01), Coquard et al.

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