Cooling of pellets from pet solid stating reactor with water

Details Cooling of pellets from pet solid stating reactor with water Cooling of pellets from pet solid stating reactor with water

2007-05-15

2007-05-15

Boykin, Terressa (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

C525S437000, C525S439000, C525S486000, C525S503000, C528S271000, C528S272000, C528S298000, C528S308000

Reexamination Certificate

active

10696880

ABSTRACT:
Energy savings are realized during the commercial production of polyethylene terephthalate by partially cooling polyethylene terephthalate pellets exiting a solid stating reactor by contact with water, and using the residual heat stored in the pellets to vaporize associated water to form dry pellets.

REFERENCES:
patent: 552361 (1895-12-01), Tung et al.
patent: 5523361 (1996-06-01), Tung et al.
patent: 5762851 (1998-06-01), Hachiya et al.
patent: 2003/0039594 (2003-02-01), Pikus
International Search Report.
Letter from Gala Industries, Inc., 181 Pauley Street, Eagle Rock, VA 24085 USA; dated Sep. 21, 2005, with attachments.
Copies of blue prints from Gala Industries.
Follow-up letter from Gala Industries, Inc., 181 Pauley Street, Eagle Rock, VA 24085 USA.

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