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Earth treatment substances.
专利权人:
LEON BECK S.A.
发明人:
PEKMEZ, PAUL
申请号:
EP19840440067
公开号:
EP0180682(A1)
申请日:
1984.12.07
申请国别(地区):
欧洲专利局
年份:
1986
代理人:
摘要:
Polymeric and copolymeric polyacrylamides characterised in that their molecular structure is modified by introducing, at the time of their polymerisation, at least one chemical compound having the property of exerting on soils, the crops which they support and/or their immediate environment effects protecting against pollution from any source and of any kind.
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