| 摘要 |
PURPOSE:To effect mixing and to permit absorption of oil into a particulate resin in good operability, by carrying out the mixing operation under a specified temperature condition. CONSTITUTION:An oil (e.g., insulating oil, lubricating oil, or a liquid plasticizer) is mixed with a particulate resin (e.g., vinyl chloride resin or vinyl acetate resin, particle diameter about 0.05-5mm.) under a condition under which the temperature is above the heat distortion temperature (ASTM-D648) and below the Vicat softening point (ASTM-D 1525) of the resin by using, for example, a Henschel mixer. According to the above-described manner, the penetrability of oil into resin can be improved because of the use of a temperature above the heat distortion temperature and, in addition, fusion of resin particles can be prevented because of the use of a temperature below the Vicat softening point, so that disadvantages such as deposition of resin on an agitator and thermal degradation do not arise. |
