SBR latex for paving with solid content 45% was prepared by the vacuum con centration process with viscositydepressant and outside circulation heating.
用减粘剂法釜式(卧式蒸发器)外循环加热真空浓缩工艺生产了固体物质量分数为45 %的道路胶乳。
2
The ideal additives for industrial gear oil in cold area should be comprised of improver of viscosity index, pour point depressant, S-P extreme pressure wear inhibitor and benzotriazole fatty amine.