Invention Grant
- Patent Title: Method of forming phenylene ether oligomer
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Application No.: US16061764Application Date: 2016-11-10
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Publication No.: US10259762B2Publication Date: 2019-04-16
- Inventor: Rajesh Chowdhury , Eylem Tarkin-Tas , Xuezhi Jin
- Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
- Applicant Address: NL Bergen op Zoom
- Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
- Current Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
- Current Assignee Address: NL Bergen op Zoom
- Agency: Cantor Colburn LLP
- International Application: PCT/US2016/061254 WO 20161110
- International Announcement: WO2017/105682 WO 20170622
- Main IPC: C07C41/01
- IPC: C07C41/01 ; C07C46/08 ; C07C37/11 ; C08G65/48 ; C08G65/44

Abstract:
A phenylene ether oligomer is prepared by a process that includes partially converting 2,6-dimethylphenol to 3,3′,5,5′-tetramethyl-4,4′-dihydroxybiphenyl and/or 3,3′,5,5′-tetramethyldiphenoquinone, converting the residual 2,6 dimethylphenol to poly(2,6-dimethyl-1,4-phenylene ether) and any 3,3′,5,5′-tetramethyl-4,4′-dihydroxybiphenyl to 3,3′,5,5′-tetramethyldiphenoquinone, and reacting the poly(2,6-dimethyl-1,4-phenylene ether) and 3,3′,5,5′-tetramethyldiphenoquinone to form the phenylene ether oligomer. The preparation can be conducted without isolation of intermediates.
Public/Granted literature
- US20180362430A1 METHOD OF FORMING PHENYLENE ETHER OLIGOMER Public/Granted day:2018-12-20
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