초록 ▼

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 b

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.

대표청구항 ▼

A polymer blend formed by melt-mixing which when molten is capable of exhibiting an anisotropic melt phase and which following injection-molding is capable of exhibiting at least one property selected from the group consisting of tensile strength, tensile modulus, flexural strength, and flexural mod

A polymer blend formed by melt-mixing which when molten is capable of exhibiting an anisotropic melt phase and which following injection-molding is capable of exhibiting 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 comprising: (a) approximately 5 to approximately 95 percent by weight, based upon the total weight of components (a) and (b), of a melt-processable wholly aromatic polyester which is capable of forming an anisotropic melt phase and which is substantially free of amide linkages; and (b) approximately 5 to approximately 95 percent by weight, based upon the total weight of components (a) and (b), of a melt-processable poly(ester-amide) which is capable of forming an anisotropic melt phase.