Pelletized resins

Pellet resin and resuspend in elution buffer, collect supernatant, aliquot and store at -80°... 

What is the nature of the material to be measured Is it a gas, a liquid, a slurry or a solid If solid, is it a powder, pelletized resin, fiber, film, or web How large is it Is it homogeneous Is it clear, cloudy, or opaque Is it colored Viscous Bubbly Hot Cold Under high pressure Under vacuum Corrosive Highly toxic Is it moving, and if so, how rapidly Does it need to remain sterile ... 

The powder is released periodically to a gas-powder separation system (4). It is depressurized to a purge column (5) where moist nitrogen deactivates the catalyst and removes any remaining monomer. The monomer is concentrated and recovered. The powder is converted into a variety of pelletized resins (6) tailored for specific market applications. 

In the second flash vessel (5), further concentrating to over 95% polymer is done and the product is fed into a degassing extruder (6) to remove the last traces of solvent and octene (when used as comonomer). Vapors from the second flash vessel and degassing extruder are purified in the purification section (7) and then recycled to the reactor section. In the degassing extruder, specified additives are added, and the polymer is pelletized. After drying, the pelletized resins are transported to the silos. 

The resin flows into the extruder (7). Pelletized resin is dried and transferred to the silos. Gaseous streams are recycled to P (1) and S (2) compressors. 

After leaving the reactor, the polymer is separated from unconverted ethylene in the HP separator (4) and LP separator (5). The latter is installed at the inlet of the extruder (6) where the necessary additives are added and the product is pelletized. After drying, the pelletized resin is transferred to the silos. 

The ratio of flux efficiencies for granular and pelletized resins was 69.7/59.6 or approximately 1.17. This ratio is indicative of a roughly 17% increase in flux efficiency (i.e.. 

Residual solvent n. Solvent, usually polymerization solvent, remaining in an unfinished resin, or a pelletized resin ready for market, or solvent remaining in a solvent-cast film after drying. Either is usually expressed as a weight percent. 

Besides diffusion problems, fractal analysis can be applied to such problems as lamination of composites, powder and pellet resin coalescence, latex paint structure, internal weld line shape, and tack of uncured elastomers. In this area, theory is ahead of experiment. 

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