Title:
MALEIC ANHYDRIDE HOMOPOLYMER AND MALEIC ACID HOMOPOLYMER AND THE METHOD FOR PREPARING THE SAME, AND NON-PHOSPHORUS CORROSION INHIBITOR AND THE USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2017/063188
Kind Code:
A1
Abstract:
This application discloses a maleic anhydride homopolymer, a maleic acid homopolymer, and the methods for preparing the same. A non-phosphorus corrosion inhibitor is disclosed to comprise as an active ingredient of a hydrolyzate of the maleic anhydride homopolymer, or a hydrolyzate of maleic anhydride homopolymer prepared by the above method, or the maleic acid homopolymer, or a maleic acid homopolymer prepared by the above method. The use of the non-phosphorus corrosion inhibitor for inhibiting metal from corrosion is disclosed too. The maleic acid homopolymer provided by the embodiments of the present invention has 2-5 maleic anhydride repeating units, and a weight average molecular weight in the range of 200-600.
Inventors:
GILL JASBIR S (US)
REED PETER E (US)
BANERJEE SANTANU (IN)
HARBINDU ANAND (IN)
TONG YINYIN (CN)
REED PETER E (US)
BANERJEE SANTANU (IN)
HARBINDU ANAND (IN)
TONG YINYIN (CN)
Application Number:
PCT/CN2015/092090
Publication Date:
April 20, 2017
Filing Date:
October 16, 2015
Export Citation:
Assignee:
ECOLAB USA INC (US)
International Classes:
C08F122/06; C08F2/06; C08F2/10; C08F122/02; C23F11/173; C23F11/18
Foreign References:
| JPS63194799A | 1988-08-11 | |||
| US3919258A | 1975-11-11 | |||
| US5135677A | 1992-08-04 | |||
| US5156744A | 1992-10-20 |
Attorney, Agent or Firm:
AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE (CN)
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