Patent ID: 8003202
Filing Date: 2011-08-23
Classification: B29C,B29K,B32B,C08L,Y10T

Abstract:
1. A semiaromatic polyamide composite article comprising; (a) a first component having a surface and comprising a fiber-reinforced material comprising a polyamide composition and reinforcing fibers, wherein the first component is not prepared by injection molding and the fiber-reinforced material has a tensile modulus of at least about 16 GPa as measured by ISO method 527-2:1993 at a rate of 5 mm/min on test specimens having a thickness of 4 mm; (b) an optional tie layer having first and second opposite surfaces such that when the tie layer is present, the first surface of the tie layer is in contact with the surface of the first component; and (c) a second component comprising a polyamide composition, wherein the polyamide composition of the first component and/or the polyamide composition of the second component is a semiaromatic polyamide composition; and wherein the article is prepared by a process comprising injection molding and/or injection-compression molding the composition of the second component onto the surface of the first component when the optional tie layer is not present and injection molding and/or injection-compression molding the composition of the second component onto the second surface of the optional tie layer when the tie layer is present, and wherein the semiaromatic polyamide composite article has at least a 58% retention of storage modulus at 125° C. relative to the storage modulus at 25° C.