Patent ID: 6221962
Filing Date: 2001-04-24
Classification: C08L

Abstract:
A polymer blend comprising:a matrix polymer selected from the group consisting of poly(ethylene terephthalate), poly(butylene terephthalate), polypropylene or polyethylene;1 to 99 wt.-% of a liquid crystalline polymer wherein the liquid crystalline polymer comprises a polyester; and0.1 to 30 wt.-% of a compatibilizer substance promoting the compatibility of the matrix polymer and the liquid crystalline polymer, the amount of the liquid crystalline polymer and the compatibilizer being calculated on the basis of the total amount of the matrix polymer and the liquid crystalline polymer, wherein the compatibility promoting substance is a reactive ethylene based terpolymer containing reactive epoxy groups, and the tensile strength and flexural strength of the blend are greater than the corresponding properties of the matrix polymer, and the Charpy impact strength of the polymer blend is at least 20% greater than that of the corresponding uncompatibilized blend.