Title:
USE OF HETEROPOLY ACID AND HETEROPOLY ACID SALT AS CATALYST IN CATALYTIC PREPARATION OF O-CRESOL PHENOLIC RESIN
Document Type and Number:
WIPO Patent Application WO/2023/066403
Kind Code:
A1
Abstract:
The use of a heteropoly acid and a heteropoly acid salt as a catalyst in the catalytic preparation of an o-cresol phenolic resin, which belongs to the technical field of the preparation of a phenolic resin. In the use of a heteropoly acid and a heteropoly acid salt as a catalyst in the catalytic preparation of an o-cresol phenolic resin, the content of ortho-positions in the prepared o-cresol phenolic resin is 30-90%, the content of residual phenol is less than or equal to 1000 ppm, and the Gardner color scale is less than or equal to 1.
Inventors:
ZHANG CONG (CN)
ZHANG SHANRU (CN)
HE HAIBO (CN)
HUANG SHUAI (CN)
ZHAO LIWEI (CN)
ZHANG SHANRU (CN)
HE HAIBO (CN)
HUANG SHUAI (CN)
ZHAO LIWEI (CN)
Application Number:
PCT/CN2022/129224
Publication Date:
April 27, 2023
Filing Date:
November 02, 2022
Export Citation:
Assignee:
HAIKE GROUP RESEARCH INSTITUTE OF INNOVATION & TECH (CN)
International Classes:
C08G8/12; B01J23/652; B01J27/16
Foreign References:
| JP2008106219A | 2008-05-08 | |||
| JPH11302350A | 1999-11-02 | |||
| JP2004209469A | 2004-07-29 | |||
| CN101508761A | 2009-08-19 | |||
| CN107383294A | 2017-11-24 |
Attorney, Agent or Firm:
QINGDAO LAWSCI INTELLECTUAL PROPERTY CO., LTD. (CN)
Download PDF: