Thermoplastically processable elastomeric block copolyetheresteretheramides and processes for the production and use thereof
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United States of America Patent
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Aug 22, 1995
Issued Date -
N/A
app pub date -
Feb 18, 1994
filing date -
May 24, 1989
priority date (Note) -
Expired
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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 tile processing of polyamides and which are suitable for the production of molded articles, for example by injection molding, coinjection, extrusion, blow molding, etc.
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