Invention Grant
- Patent Title: Fluoropolymer resin treatment employing heating and oxygen source to reduce discoloration
- Patent Title (中): 含氟聚合物树脂处理采用加热和氧源减少变色
-
Application No.: US13875337Application Date: 2013-05-02
-
Publication No.: US09175115B2Publication Date: 2015-11-03
- Inventor: Paul Douglas Brothers , Gregory Allen Chapman , Subhash Vishnu Gangal , Adam Paul Smith
- Applicant: E I DU PONT DE NEMOURS AND COMPANY
- Applicant Address: US DE Wilmington
- Assignee: THE CHEMOURS COMPANY FC, LLC
- Current Assignee: THE CHEMOURS COMPANY FC, LLC
- Current Assignee Address: US DE Wilmington
- Main IPC: C08F114/26
- IPC: C08F114/26 ; C08F114/18 ; C08F214/26 ; C08F6/22 ; C08F6/00 ; C08F6/28
Abstract:
Process for reducing thermally induced discoloration of fluoropolymer resin produced by polymerizing fluoromonomer in an aqueous medium to form aqueous fluoropolymer dispersion and isolating said fluoropolymer from said aqueous medium to obtain said fluoropolymer resin. The process comprises: heating the fluoropolymer resin to a temperature of about 160° C. to about 400° C.; and exposing the heated fluoropolymer resin to an oxygen source.
Public/Granted literature
- US20130303715A1 Fluoropolymer Resin Treatment Employing Heating and Oxygen Source to Reduce Discoloration Public/Granted day:2013-11-14
Information query
IPC分类:
