| abstract |
The two-layer cured composite article has an outer portion having a thickness of the outer portion composed of a first matrix resin having a total weight percent of between 50 and 70 of the outer portion that has become the outer portion mixed fiber filler. The outer part mixed fiber filler has an outer part primary fiber and carbon fiber ratio of 0.05-20: 1. An inner portion complementary to the outer portion is provided, having an inner portion thickness comprised of a second matrix resin having a total weight percent between 40 and 60 of the inner portion of the inner mixed fiber filler; The inner mixed fiber filler has an inner portion primary fiber and carbon fiber ratio less than the outer portion primary fiber and carbon fiber ratio. A bond between the outer and inner portions is provided. Further provided is a step of producing such an article. [Selection diagram] Fig. 1 |