Invention Grant
- Patent Title: Method of polyarylene sulfide precipitation
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Application No.: US16166248Application Date: 2018-10-22
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Publication No.: US10882959B2Publication Date: 2021-01-05
- Inventor: Hendrich A. Chiong
- Applicant: Ticona LLC
- Applicant Address: US KY Florence
- Assignee: Ticona LLC
- Current Assignee: Ticona LLC
- Current Assignee Address: US KY Florence
- Agency: Dority & Manning, P.A.
- Main IPC: C08G75/14
- IPC: C08G75/14 ; C08G75/0204 ; C08G75/025 ; C08G75/0281

Abstract:
A method for forming a polyarylene sulfide is described. The method can include a multi-step cooling and precipitation process in which the cooling rate of the solution that carries the polymer is decreased during a portion of the overall cooling. This slower cooling period can encompass at least a portion of the period during which the polymer precipitates from the solution. The precipitation process can form polyarylene sulfide particles with good particle integrity and a narrow particle size distribution, which can reduce fines and improve downstream processing and final product characteristics.
Public/Granted literature
- US20190161582A1 Method of Polyarylene Sulfide Precipitation Public/Granted day:2019-05-30
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