发明名称 |
STRUCTURED BLOCK COPOLYMERS |
摘要 |
The invention provides new polyvinylamide and/or acryl acid based copolymers. The new structured block copolymers are based on the block copolymerization of N-vinyl formamide (NVF) with other monomers by using a bifunctional initiator. Further, a method of preparing the structured block copolymer is provided, and especially a method wherein the NVF-based block is at least partially hydrolyzed to obtain PVAm. Also the use of the new structured block copolymers in sludge dewatering and in papermaking processes is disclosed. |
申请公布号 |
CA2939055(A1) |
申请公布日期 |
2015.09.03 |
申请号 |
CA20152939055 |
申请日期 |
2015.02.27 |
申请人 |
KEMIRA OYJ |
发明人 |
LEGRAND, SACHA;CARCELLER, ROSA;POLVERARI, MARCO |
分类号 |
C08F293/00;C02F1/56;C02F11/14;C08F4/04;C08F4/36;C08F295/00;D21H19/00 |
主分类号 |
C08F293/00 |
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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