发明授权
US4707221A Sheets having improved stiffness from fiber, latex and coalescing agent
失效
片材具有从纤维,胶乳和聚结剂提高刚度
- 专利标题: Sheets having improved stiffness from fiber, latex and coalescing agent
- 专利标题(中): 片材具有从纤维,胶乳和聚结剂提高刚度
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申请号: US592507申请日: 1984-03-26
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公开(公告)号: US4707221A公开(公告)日: 1987-11-17
- 发明人: James J. Beer , Do I. Lee
- 申请人: James J. Beer , Do I. Lee
- 申请人地址: MI Midland
- 专利权人: The Dow Chemical Company
- 当前专利权人: The Dow Chemical Company
- 当前专利权人地址: MI Midland
- 主分类号: D21H17/06
- IPC分类号: D21H17/06 ; D21H17/35 ; D21H3/02 ; D21H3/32
摘要:
A process for preparing a sheet with improved stiffness by mixing a fiber, a latex having minimum film forming conditions greater than the conditions the sheet reaches during drying and a fugitive coalescing agent. The mixture is collected and dried under conditions less than the minimum film forming conditions of the latex. The process enables hard latexes to be employed which do not form films under the drying conditions of the sheet whereby the hard latexes can contribute to the stiffness of the final sheet. A sheet prepared by the process is also provided.
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