| 摘要 |
PURPOSE:To obtain a granular vinyl chloride resin which is less apt to cause dusting during paste sol preparation, shows good powder flowability, can be automatically metered, and can be easily dispersed into a plasticizer to give a low-viscosity paste sol having good flowability even under high shearing. CONSTITUTION:A poly(vinyl chloride) latex obtained by emulsion polymerization or fine suspension polymerization is mixed with a vinyl chloride resin powder for paste use. This mixture is then spray-dried to thereby produce a granular resin. |
