Invention Grant
- Patent Title: Process for producing phenolic novolak
- Patent Title (中): 酚醛清漆生产工艺
-
Application No.: US10524636Application Date: 2003-08-29
-
Publication No.: US07683155B2Publication Date: 2010-03-23
- Inventor: Shigeki Inatomi , Noboru Tanoue , Motoji Yokoyama , Hirofumi Shinohara , Satoshi Takehara
- Applicant: Shigeki Inatomi , Noboru Tanoue , Motoji Yokoyama , Hirofumi Shinohara , Satoshi Takehara
- Applicant Address: JP Nobeoka-shi
- Assignee: Asahi Organic Chemicals Industry Col., Ltd.
- Current Assignee: Asahi Organic Chemicals Industry Col., Ltd.
- Current Assignee Address: JP Nobeoka-shi
- Agency: Edwards Angell Palmer & Dodge LLP
- Priority: JP2002-252882 20020830; JP2002-252883 20020830; JP2002-252884 20020830; JP2002-273027 20020919; JP2002-364568 20021217; JP2002-367487 20021219; JP2002-376935 20021226; JP2003-166102 20030611; JP2003-196946 20030715
- International Application: PCT/JP03/11045 WO 20030829
- International Announcement: WO2004/020492 WO 20040311
- Main IPC: C08G8/02
- IPC: C08G8/02 ; C08G8/04 ; C08G14/02
Abstract:
A phenolic novolak having the contents of a monomeric phenol and a dimeric phenol and a degree of dispersion controlled can be obtained in high yield by a process for production of a phenolic novolak having a step of conducting a heterogeneous reaction of a phenol and an aldehyde in the presence of a phosphoric acid and an unreactive oxygen-containing organic solvent as a reaction cosolvent.
Public/Granted literature
- US20060241276A1 Process for producing phenolic novolak Public/Granted day:2006-10-26
Information query
