| 摘要 |
In a method of making a linear composite member, a hollow carrier (12) is provided having a cavity (13) and an inner surface (14). A curable liquid or gelled resin (18) is applied to the inner surface. A curable foam (21) is introduced into the cavity. The foam contacts the resin when the resin is not more than partially cured, and preferably when the resin has a viscosity not greater than 250,000 centipoise at 25 ~C. The foam and resin, which are preferably both polyurethanes, are cured together to form a linear composite member having a foam core and a hard skin formed integrally. In a preferred embodiment, a reinforcement material (22), such as a glass fiber web, is embedded in the resin skin.
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