Title:
METHOD FOR PRODUCING NOVOLAC PHENOL RESIN
Document Type and Number:
WIPO Patent Application WO/2011/158751
Kind Code:
A1
Abstract:
The disclosed method for producing novolac phenol resins reacts phenols with aldehydes and is characterized in that a water-soluble organic phosphonic acid is used as reaction catalyst and a tertiary phosphine compound is used as co-catalyst. Said organic phosphonic acid preferably has a structure represented by General Formula (1).
R-PO(OH)2 (1)
(R is a group that comprises a carbon atom as well as -COOH and/or -PO(OH)2)
Inventors:
ASAMI MASAKATSU (JP)
TOCHIMOTO TAKUYA (JP)
TOCHIMOTO TAKUYA (JP)
Application Number:
PCT/JP2011/063362
Publication Date:
December 22, 2011
Filing Date:
June 10, 2011
Export Citation:
Assignee:
SUMITOMO BAKELITE CO (JP)
ASAMI MASAKATSU (JP)
TOCHIMOTO TAKUYA (JP)
ASAMI MASAKATSU (JP)
TOCHIMOTO TAKUYA (JP)
International Classes:
C08G8/10; C08G8/00
Foreign References:
| JP2001329034A | 2001-11-27 | |||
| JPH04226181A | 1992-08-14 | |||
| JP2002105157A | 2002-04-10 | |||
| JP2002194041A | 2002-07-10 | |||
| JP2004238618A | 2004-08-26 | |||
| JP2004339256A | 2004-12-02 | |||
| JP2002128849A | 2002-05-09 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
Sumio Tanai (JP)
Sumio Tanai (JP)
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