C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/5703, 18/715
C08L 67/00 (2006.01) C08L 67/04 (2006.01) C08L 77/10 (2006.01) C08L 77/12 (2006.01)
Patent
CA 1261515
BLEND OF WHOLLY AROMATIC POLYESTER AND POLY(ESTER-AMIDE) CAPABLE OF EXHIBITING AN ANISOTROPIC MELT PHASE Abstract of the Disclosure A polymer blend which is capable of exhibiting an anisotropic melt phase and the ability to form shaped articles having improved mechanical properties is provided. The improved polymer blend comprises approximately 5 to approximately 95 percent by weight, based upon the total weight of the polymer blend, of a melt-processable wholly aromatic polyester which is substantially free of amide linkages and approximately 5 to approximately 95 percent by weight, based upon the total weight of the blend, of a melt-processable poly(ester-amide). Each of the polymeric components apart from the blend is capable of exhibiting an anisotropic melt phase. Upon injection molding, articles formed from the improved polymer blend surprisingly exhibit at least one property selected from the group consisting of tensile strength, tensile modulus, flexural strength and flexural modulus which exceeds that of each of the polymeric components of the blend when separately injection-molded. The polymer blend of the present invention also can be used to advantage to form improved melt-extruded three-dimensional articles, etc.
495114
Celanese Corporation
Smart & Biggar
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