Title:
METHOD FOR PRODUCING ANIONIC WATER-SOLUBLE POLYMER ON THE BASIS OF BIOACRYLAMIDE AND ACRYLIC ACID
Document Type and Number:
WIPO Patent Application WO/2019/119248
Kind Code:
A1
Abstract:
A method for producing an anionic water-soluble polymer. Said polymer is obtained by polymerization of acrylic acid and acrylamide obtained by a biocatalytic reaction. The method comprises the following steps: preparing a diluted acrylic acid solution by mixing acrylic acid and water, in which the mass ratio of acrylic acid to water being between 95:5 and 70:30; preparing a diluted solution of bioacrylamide and water, in which the mass ratio of bioacrylamide to water being between 60:40 and 10:90; mixing the diluted acrylic acid solution and the diluted solution of bioacrylamide; mixing part or all of them for neutralizing the acidic functional groups of the acrylic acid; and polymerizing the obtained mixture.
Inventors:
FAVERO CÉDRICK (FR)
GAO JUN (CN)
LING JING (CN)
GAO JUN (CN)
LING JING (CN)
Application Number:
PCT/CN2017/117057
Publication Date:
June 27, 2019
Filing Date:
December 19, 2017
Export Citation:
Assignee:
SNF CHINA FLOCCULANT CO LTD (CN)
International Classes:
C08F220/56; C08F2/10; C08F220/06
Foreign References:
| CN102344532A | 2012-02-08 | |||
| CN102703535A | 2012-10-03 | |||
| US20070208143A1 | 2007-09-06 | |||
| CN105199036A | 2015-12-30 | |||
| CN102850487A | 2013-01-02 |
Other References:
See also references of EP 3730524A4
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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