| 摘要 |
PURPOSE:To improve colorability and to improve uneven coloring by heating a reactive injection molding of a resin essentially consisting of polydicyclopentadiene in air or resting the same for a specific period or longer, then subjecting the molding to painting. CONSTITUTION:The reactive injection molding essentially consisting of the polydicyclopentadiene is heated in air or rested for >=4hr. for example, the heating for 15-25min suffices if temp. is 80-90 deg.C. The molding is rested for >=4hr at about 23 deg.C in the case of resting the same at a room temp. As a result, the colorability is improved and uneven colors are eliminated.
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