Invention Grant
- Patent Title: Method of manufacture of novolac-type phenol resin
- Patent Title (中): 酚醛清漆型酚醛树脂的制造方法
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Application No.: US13699085Application Date: 2011-06-10
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Publication No.: US08822627B2Publication Date: 2014-09-02
- Inventor: Masakatsu Asami , Takuya Tochimoto
- Applicant: Masakatsu Asami , Takuya Tochimoto
- Applicant Address: JP Tokyo
- Assignee: Sumitomo Bakelite Co., Ltd.
- Current Assignee: Sumitomo Bakelite Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2010-134781 20100614
- International Application: PCT/JP2011/063362 WO 20110610
- International Announcement: WO2011/158751 WO 20111222
- Main IPC: C08G14/02
- IPC: C08G14/02 ; C08G8/10
Abstract:
A method of manufacture of novolac-type phenol resin, wherein phenols and aldehydes are allowed to react with each other, a water-soluble organic phosphonic acid is used as a reaction catalyst, and a tertiary phosphine compound is used as a reaction promoter. It is preferable that the aforementioned organic phosphonic acid have the structure shown in the following general formula (1): R—PO(OH)2 (1) (R is a group which contains a carbon atom, and which contains —COON and/or —PO(OH)2).
Public/Granted literature
- US20130066036A1 METHOD OF MANUFACTURE OF NOVOLAC-TYPE PHENOL RESIN Public/Granted day:2013-03-14
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