发明授权
US3222245A Polyvinylsulfonates with alum as precipitants in the protein sizing of paper
失效
聚乙烯磺酸钠与明矾作为沉淀剂在纸的蛋白质上浆
- 专利标题: Polyvinylsulfonates with alum as precipitants in the protein sizing of paper
- 专利标题(中): 聚乙烯磺酸钠与明矾作为沉淀剂在纸的蛋白质上浆
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申请号: US42387265申请日: 1965-01-06
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公开(公告)号: US3222245A公开(公告)日: 1965-12-07
- 发明人: FRANZ POSCHMANN
- 申请人: BASF AG
- 专利权人: Basf Ag
- 当前专利权人: Basf Ag
- 优先权: DEB0064596 1961-10-31
- 主分类号: D21H17/22
- IPC分类号: D21H17/22 ; D21H17/42 ; D21H17/66
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