Patent ID: 6383423
Filing Date: 2002-05-07
Classification: B29C,B29K,B29L

Abstract:
A process for producing a urethane molded article by injecting a urethane material into a mold cavity from a gate and molding an article from the urethane material, the process comprising:a) forming a surface layer (R1, U1) on the inner surface of the cavity with the mold closed; b) injecting a first urethane material (R2, U2) containing pigment into the cavity; and c) injecting a second urethane material (R4, U3) containing pigment into the cavity, wherein the second urethane material (R4, U3) forms a portion near a gate area of the article, and wherein the pigment concentration of the first urethane material (R2, U2) is lowered to 30-70% of the pigment concentration of the second urethane material (R4, U3).