发明申请
- 专利标题: PAPER STRENGTH IMPROVEMENT USING METAL CHELATES AND SYNTHETIC CATIONIC POLYMERS
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申请号: US17599797申请日: 2020-04-01
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公开(公告)号: US20220195672A1公开(公告)日: 2022-06-23
- 发明人: Clayton CAMPBELL , Junhua CHEN , Zheng DANG
- 申请人: KEMIRA OYJ
- 申请人地址: FI Helsinki
- 专利权人: KEMIRA OYJ
- 当前专利权人: KEMIRA OYJ
- 当前专利权人地址: FI Helsinki
- 优先权: FI20195452 20190529
- 国际申请: PCT/US2020/026066 WO 20200401
- 主分类号: D21H21/20
- IPC分类号: D21H21/20 ; D21H17/00 ; D21H17/55 ; D21H23/50 ; D21H17/66 ; D21H17/69
摘要:
Methods for making paper with improved strength and methods for improving paper strength, using a metal chelate and an organic polymer, and improved strength paper made through these processes.
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