发明授权
- 专利标题: High strength non-woven fibrous material
- 专利标题(中): 高强度无纺纤维材料
-
申请号: US825319申请日: 1977-08-17
-
公开(公告)号: US4178205A公开(公告)日: 1979-12-11
- 发明人: Ritchie A. Wessling , William A. Foster , Dale M. Pickelman
- 申请人: Ritchie A. Wessling , William A. Foster , Dale M. Pickelman
- 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: D21H17/34
- IPC分类号: D21H17/34 ; D21H17/44 ; D21H3/38
摘要:
A high strength, non-woven fibrous material is prepared by (a) mixing an aqueous slurry of a negatively charged, water-insoluble natural or synthetic fiber or blend of fibers with an amount up to the fiber charge reversal point of a structured particle latex having pH independent cationic charges bound at or near the particle surface to form an aqueous suspension, (b) draining water from the aqueous suspension to form a wet web (c) wet pressing the web and (d) drying the web by heating.