The title curing agent has been prepared by one - step catalytic polymerization process with a specific chemical additive.
采用特定的化学助剂，通过催化聚合法一步合成快干型低游离TDI聚氨酯固化剂。
C9 aromatic petroleum resin was produced with pressure thermal polymerization instead of the catalytic polymerization under low temperature.
用压力热聚合方法代替低温催化聚合生产浅色号c 9石油树脂。
C9 aromatic petroleum resin was produced with pressure thermal polymerization instead of the catalytic polymerization under low temperature.
用压力热聚合方法代替低温催化聚合生产浅色号c 9石油树脂。
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