DIRECT COMBINATION OF POLYMERISATION IN MELT AND PROCESSING OF PET IN HARD CONDITION Russian patent published in 2009 - IPC B29B9/12

Abstract RU 2358866 C2

FIELD: construction.

SUBSTANCE: threads of melt polyethylene terephthalate from polycondensation reactor are hardened, granulated and cooled down to temperature in the range from 50°C to temperature close to T_g of polymer, by means of contact with water. Hot granules are transported with further drying for water removal into chiller.

EFFECT: avoiding of amorphous granules cooling down to room temperature with water or cold air, significant power savings may be obtained.

18 cl, 3 dwg

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RU 2 358 866 C2

Authors

Bonner Richard Dzhill

Dates

2009-06-20—Published

2004-08-23—Filed