Patent ID: 9630579
Date: 2017-04-25
CPC Classifications: B32B,B60R

Claim:
1. A bumper back-beam for a vehicle, comprising: a glass fiber mat reinforced plastic composite and a carbon fiber reinforced plastic composite; wherein the glass fiber mat reinforced plastic composite includes polypropylene at about 45 to 60 wt. %, glass fiber at about 35 to 45 wt. %, a crosslink agent at about 0.1 to 10 wt. %, peroxide at about 0.1 to 4 wt. %, and an antioxidant at about 0.1 to 4 wt. %; and wherein the carbon fiber reinforced plastic composite includes a thermoplastic resin at about 40 to 60 wt. % and a carbon reinforced fiber at about 40 to 60 wt. % arranged in a predetermined direction, wherein the carbon fiber reinforced plastic composite includes a layer made of a carbon reinforced fiber arranged in a machine direction and a layer made of a carbon reinforced fiber arranged in a transverse direction.