Patent ID: 10858507

Abstract:
Disclosed is a fiber-reinforced polypropylene-based resin composition including a propylene-based polymer (A) and reinforcing fibers (B), in which when a content of at least one olefin-derived structural unit selected from ethylene and an α-olefin having 4 to 8 carbon atoms in the propylene-based polymer (A) is designated as E (% by mass) (the sum of the propylene-based polymer (A) and the reinforcing fibers (B) is designated as 100% by mass), and a mesopentad fraction of the propylene-based polymer (A) as measured by 13C-NMR is designated as M (%), the following Expression (1) and Expression (2) are satisfied, the fiber-reinforced polypropylene-based resin composition being a resin composition with which a molded product having excellent thermal and mechanical characteristics and having an excellent external appearance of the molded product surface (particularly, external appearance of a grained surface) can be produced. 85≤M≤99  (1)74≤M−12E≤90  (2)