Title: Efficient carboxilic acid grafting water-reducing agent and its synthesis
Application Number: 00127294 Application Date: 2000.11.07
Publication Number: 1288870 Publication Date: 2001.03.28
Approval Pub. Date: Granted Pub. Date: 2002.10.23
International Classifi-cation: C04B24/04,C04B24/16,C08F267/02
Applicant(s) Name: Fudan Univ. Address: 200433
Inventor(s) Name: Xu Wen, Hu Jianhua
Attorney & Agent: yao jingfang
Abstract:
     The invented water-reducing agent includes the multifunctional copolymer containing carboxylic group, hydroxyl group and sulfonic acid group and polycarboxylic acid containing polyoxygethyl group and lateral group, in which the former is obtained by polymerizing unsaturated vinyl monomer containing lateral group in oxidation-reduction system, and the latter is obtained by making polyethylene glycol and maleic anhydride produce esterification reaction and polymerizing the above-mentioned material and acrylic acid and acrylate monomer. The property of said product is good and its raw material is easily available.
Time: 8
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