Low molecular weight, water-soluble copolymers, process for their preparation, and detergent compositions comprising such copolymers.
- 专利权人:
- ROHM AND HAAS COMPANY
- 发明人:
- HUGHES, KATHLEEN ANNE,SWIFT, GRAHAM
- 申请号：
- EP19900308429
- 公开号：
- EP0441022(A2)
- 申请日:
- 1990.07.31
- 申请国别(地区):
- 欧洲专利局
- 年份:
- 1991
- 代理人:
- 摘要：
This invention is concerned with copolymers containing, as copolymerized monomer units, units of aliphatic monoethylenically unsaturated dicarboxylic acid such as maleic acid, and units of at least one comonomer selected from monoethylenically unsaturated monocarboxylic acids, such as acrylic acid, and carboxyl-free monoethylenically unsaturated monomers, such as alkyl esters of acrylic acid. This invention is particularly concerned with the use of low levels of copper ions in an aqueous emulsion polymerization process to promote copolymerization of the above-mentioned monomers at high conversion while maintaining and improving molecular weight control. The copolymers are useful primarily as antiscalants, dispersants, hard surface cleaners, detergent builders and incrustation inhibitors.
- 来源网站：
- 中国工程科技知识中心
