发明名称 |
Block copolymer and its production process and use |
摘要 |
<p>A new block copolymer, which is excellent with regard to abilities such as dispersibility, chelatability, and scale inhibitability, includes a polyalkylene glycol structural unit and a polyglyoxylate structural unit. This block copolymer, for example, can be produced by carrying out a polymerization reaction between a polyalkylene glycol and a glyoxylic acid-based monomer in the presence of a catalyst in a polymerization reaction system having a water content of about 30 mol % or less relative to the polyalkylene glycol, and used as a cement dispersant, pigment dispersant, water-treating agent, or detergent builder.</p> |
申请公布号 |
EP0803521(A1) |
申请公布日期 |
1997.10.29 |
申请号 |
EP19970106660 |
申请日期 |
1997.04.22 |
申请人 |
NIPPON SHOKUBAI CO., LTD. |
发明人 |
SAEKI, TAKUYA;NISHIBAYASHI, HIDEYUKI;HIRATA, TSUYOSHI;YAMAGUCHI, SHIGERU |
分类号 |
C04B24/28;C04B24/30;C04B24/32;C08G2/38;C08G4/00;C08G16/02;C11D3/37;(IPC1-7):C08G2/38 |
主分类号 |
C04B24/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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