Title:
PROTECTIVE LIQUID FOR HYDRAULIC SYSTEM, PREPARATION METHOD THEREFOR AND USE OF THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/205911
Kind Code:
A1
Abstract:
A protective liquid for a hydraulic system, the protective liquid comprising the following components in parts by weight: 24-33 parts of boric acid glyceryl amide, 17-22 parts of a carboxylic acid alcohol amine salt, 1-2 parts of sodium molybdate, 0.1-0.3 parts of methylbenzotriazole, 8-12 parts of glycerol and 30-50 parts of water, wherein the boric acid glyceryl amide is prepared by reacting boric acid, monoethanolamine and glycerol; and the carboxylic acid alcohol amine salt is a complex comprising 13-16 parts by weight of an undecanedicarboxylic acid triethanolamine salt and 4-6 parts by weight of a capryloyl glutamic acid triethanolamine salt. The protective liquid has an excellent anti-rust property and stability, a good sealing material adaptability, and a certain oiliness. When used at a concentration of 1-2%, the protective liquid can serve as a transmission medium for long-term protection of an external-injection-type single hydraulic prop, and actions such as supporting and lifting of the single prop and long-term inhibition of metal corrosion are achieved.
Inventors:
HOU JIANTAO (CN)
SHEN DONG (CN)
LI SHANPENG (CN)
YU GUANG (CN)
XUE YONGSHENG (CN)
LIU YIFANG (CN)
ZHAO XINNAN (CN)
LIU XUEWEI (CN)
YOU XIUQUAN (CN)
YU KUN (CN)
ZHANG MINGKUN (CN)
XIA QI (CN)
LI SHUOLIN (CN)
SHEN DONG (CN)
LI SHANPENG (CN)
YU GUANG (CN)
XUE YONGSHENG (CN)
LIU YIFANG (CN)
ZHAO XINNAN (CN)
LIU XUEWEI (CN)
YOU XIUQUAN (CN)
YU KUN (CN)
ZHANG MINGKUN (CN)
XIA QI (CN)
LI SHUOLIN (CN)
Application Number:
PCT/CN2021/128800
Publication Date:
October 06, 2022
Filing Date:
November 04, 2021
Export Citation:
Assignee:
CCTEG CHINA COAL RES INSTITUTE (CN)
International Classes:
C09G1/02; C10M173/02; C10M105/10; C10M173/00
Domestic Patent References:
| WO2018200115A1 | 2018-11-01 |
Foreign References:
| CN109181836A | 2019-01-11 | |||
| CN103450998A | 2013-12-18 | |||
| CN107529545A | 2018-01-02 | |||
| CN104877749A | 2015-09-02 | |||
| CN105754698A | 2016-07-13 | |||
| CN104277904A | 2015-01-14 | |||
| CN108774574A | 2018-11-09 | |||
| CN107699139A | 2018-02-16 | |||
| US20070078068A1 | 2007-04-05 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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