Patent ID: RE40039

Claim:
Aromatic polyamide resin molding comprising at least one surface that has an R q root-mean-square roughness of 1.0 nm or more and a 10-point average roughness of 80 nm or less, both of said roughness being as determined by atomic force microscopy, and said molding having a tensile Young's modulus of at least 9.8 Gpa or more in at least one direction, in which said aromatic polyamide layer that comprises said surface consist essentially of an aromatic polyamide plus a dissimilar polymer that is not an aromatic polyamide, and wherein said dissimilar polymer comprises 0.1 wt % to 10 wt %, where H/D is the value given by dividing the average height of the protrusions on the surface by the average diameter of the protrusions and wherein H/D is in the range of 1/40 to ½, and wherein the average diameter of the protrusions on the surface is 30 nm to 300 nm.