PROCESSES AND APPARATUS FOR POLYMER FINISHING AND PACKAGING

Title:

PROCESSES AND APPARATUS FOR POLYMER FINISHING AND PACKAGING

Document Type and Number:

WIPO Patent Application WO/2011/087729

Kind Code:

A3

Abstract:

Provided are apparatus and methods relating to the finishing line of a continuous solution polymerization plant. In one aspect, an apparatus includes a pelletizer having cooling liquid, e.g., water or aqueous solution, into which is added a pelletization aid. In another aspect, the apparatus comprises means to remove residual polymer particles from the pelletizer cooling liquid. In a further aspect, the apparatus comprises conduits of at least 50 m in length for carrying propellant cooling liquid from the pelletizer to a drying apparatus. The residence time of the pellets in the cooling liquid may be 10 seconds or more. In a further aspect, a drying apparatus is provided for the pellets which comprises first and second drying zones. In a further aspect, a pneumatic conveyor is provided for carrying pellets to a packaging apparatus. In a further aspect, a packaging apparatus is provided comprising a blender silo.

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Inventors:

YEH RICHARD C (US)
ESWARAN VETKAV R (US)
HENTSCH EDGAR P (SG)
BROUSSARD OSCAR K III (US)

Application Number:

PCT/US2010/061106

Publication Date:

October 20, 2011

Filing Date:

December 17, 2010

Export Citation:

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Assignee:

EXXONMOBIL CHEM PATENTS INC (US)
YEH RICHARD C (US)
ESWARAN VETKAV R (US)
HENTSCH EDGAR P (SG)
BROUSSARD OSCAR K III (US)

International Classes:

B29B9/16; B01D21/00; B29B9/06; B29B13/06; B29B13/10

Domestic Patent References:

WO2006077214A1

2006-07-27

Foreign References:

US6126836A	2000-10-03
EP0695719A1	1996-02-07
US3207818A	1965-09-21
EP1522395A2	2005-04-13
US2862243A	1958-12-02

Attorney, Agent or Firm:

FAULKNER, Kevin, M. et al. (P.O. Box 2149Baytown, TX, US)

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