发明授权
- 专利标题: Polymers of maleic acid with amines
- 专利标题(中): 马来酸与胺的聚合物
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申请号: US132246申请日: 1993-10-06
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公开(公告)号: US5442038A公开(公告)日: 1995-08-15
- 发明人: Louis L. Wood , Gary J. Calton
- 申请人: Louis L. Wood , Gary J. Calton
- 申请人地址: MD Elkridge
- 专利权人: SRCHEM, Inc.
- 当前专利权人: SRCHEM, Inc.
- 当前专利权人地址: MD Elkridge
- 主分类号: A61K8/81
- IPC分类号: A61K8/81 ; A61K8/88 ; A61Q11/00 ; C08G69/00 ; C08G73/06 ; C08G73/10 ; C11D3/37
摘要:
Polymers of maleic acid may be prepared by thermally polymerizing malic acid, maleic acid or fumaric acid with less than one equivalent of ammonia. The polymers are modified by the incorporation of amines, carboxylic acids or combinations thereof. The polymers formed are excellent inhibitors of alkaline earth salt deposition, dispersants, tartar control additives, detergent additives, and water treatment agents.
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