Invention Grant
- Patent Title: System for processing of low viscosity polymers
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Application No.: US15535792Application Date: 2015-12-10
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Publication No.: US11077585B2Publication Date: 2021-08-03
- Inventor: Michael J. Zogg, Jr. , Timothy W. Gambrel , Johan Van Leeuwen
- Applicant: DOW GLOBAL TECHNOLOGIES LLC
- Applicant Address: US MI Midland
- Assignee: DOW GLOBAL TECHNOLOGIES LLC
- Current Assignee: DOW GLOBAL TECHNOLOGIES LLC
- Current Assignee Address: US MI Midland
- Agency: Cantor Colburn LLP
- International Application: PCT/US2015/064880 WO 20151210
- International Announcement: WO2016/100060 WO 20160623
- Main IPC: B29B9/06
- IPC: B29B9/06 ; B29C48/285 ; B29C48/365 ; B29C48/78 ; B29C48/695 ; B29C48/37

Abstract:
Disclosed herein is a system comprising a first pump; a pelletization system that comprises an underwater pelletizer; where the pelletization system is located downstream of the first pump and is in fluid communication with it; a direct line that is located downstream of the first pump and upstream of the pelletization system; where the direct line does not contain a pump or a heat exchanger; and a bypass line that is located downstream of the first pump and upstream of the pelletization system; where the bypass line comprises a second pump; where the first pump is operative to discharge the polymer to the pelletization system via the direct line when the polymer has a melt viscosity greater than 105 centipoise; and where the first pump is operative to discharge the polymer to the pelletization system via the bypass line when the polymer has a melt viscosity less than 105 centipoise.
Public/Granted literature
- US20170368716A1 SYSTEM FOR PROCESSING OF LOW VISCOSITY POLYMERS Public/Granted day:2017-12-28
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