MOLDED PRODUCT HAVING HOLLOW STRUCTURE AND PROCESS FOR PRODUCING SAME

摘要

A molded product obtained by unifying a first member (I) which is composed of both a plane surface layer part and a protruding core part and a second member (II), wherein: the first member (I) is made of a fiber-reinforced resin (A) which comprises reinforcing fibers (a1) and a matrix resin (a2); the reinforcing fibers (a1) extend across the boundary surface between the surface layer part and the core part: the quantity of reinforcing fibers (a1) extending across the boundary surface is 400 fibers/mm2 or more as observed at the boundary surface; the number-average fiber length (Ln) of the reinforcing fibers (a1) is 1mm or longer; and the core part constitutes a hollow structure. Thus, a molded product and a unified molded product which exhibit satisfactory lightness and meet the rigidity required in the market can be obtained.