发明名称 Paper manufacture with improved retention agents
摘要 DISCLOSED is a process for the production of paper and paper-like products which comprises the step of incorporating in the pulp a retention agent comprising a polyalkylene oxide of molecular weight in excess of 1 million and a phenol- or naphthol-formaldehyde or -sulphur resin.
申请公布号 US4070236(A) 申请公布日期 1978.01.24
申请号 US19750630090 申请日期 1975.11.10
申请人 SANDOZ LTD. 发明人 CARRARD, JEAN-PIERRE;PUMMER, HELMUT
分类号 D21H17/47;D21H17/48;D21H17/58;(IPC1-7):D21D3/00 主分类号 D21H17/47
代理机构 代理人
主权项
地址