초록 ▼

Pourable particles of normally soft and tacky plastic materials are formed by extruding the molten plastic material into contact with a cooling fluid containing a non-sticky material that is compatible with the plastic material, cutting the plastic material into particles, separating these particles

Pourable particles of normally soft and tacky plastic materials are formed by extruding the molten plastic material into contact with a cooling fluid containing a non-sticky material that is compatible with the plastic material, cutting the plastic material into particles, separating these particles from the cooling fluid, and contacting these particles with a second compatible non-sticky material.

대표청구항 ▼

A process for producing pourable particles of a plastic material that is normally susceptible to blocking at temperatures encountered during storage conditions comprising: (a) supplying said plastic material in extrudable form near the Ring and Ball Softening Point of said plastic material; (b) extr

A process for producing pourable particles of a plastic material that is normally susceptible to blocking at temperatures encountered during storage conditions comprising: (a) supplying said plastic material in extrudable form near the Ring and Ball Softening Point of said plastic material; (b) extruding said plastic material through at least one orifice of a die plate immersed in a cooling fluid; (c) cutting said plastic material as it exits said die plate while in contact with said cooling fluid thereby forming particles of said plastic material; (d) separating said particles from said cooling fluid; and (e) contacting said particles with a non-sticky material; wherein said plastic material is also contacted with a non-sticky material while in contact with said cooling fluid prior to said particles of said plastic material significantly contacting each other.