Poly(arylether)/liquid crystalline polyester block copolymers and a process for their production
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United States of America Patent
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Apr 8, 1997
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N/A
app pub date -
May 15, 1991
filing date -
May 15, 1991
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Expired
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Abstract
Block copolymers represented by the formula ##STR1## are formed by contacting an ester group containing poly(aryl ether ketone) composed of the recurring units ##STR2## with a liquid crystalline polyester represented by the formula ##STR3## in which R.sub.1, R.sub.2 X.sub.2, X, Z, E.sup.1, E.sup.2 E.sup.5, w, x, y, z a, b and n each represent specified groups or values under conditions such that a transesterification reaction will occur.
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