发明授权
- 专利标题: Compositions and processes for paper production
- 专利标题(中): 纸张生产的组成和过程
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申请号: US11490738申请日: 2006-07-21
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公开(公告)号: US07914646B2公开(公告)日: 2011-03-29
- 发明人: Prasad Y. Duggirala , Sergey M. Shevchenko , Katherine M. Broadus
- 申请人: Prasad Y. Duggirala , Sergey M. Shevchenko , Katherine M. Broadus
- 申请人地址: US IL Naperville
- 专利权人: Nalco Company
- 当前专利权人: Nalco Company
- 当前专利权人地址: US IL Naperville
- 代理商 Michael B. Martin
- 主分类号: D21F11/00
- IPC分类号: D21F11/00 ; D21C9/10
摘要:
Oxidative compositions and processes that preserve and enhance the brightness and improve color of pulp or paper when applied during different stages of the papermaking process are identified. The oxidative composition and method maintains and/or enhances brightness, prevents yellowing, and enhances the performance of paper products. Used in combination with optical brighteners and/or chelants the oxidative agents produce a synergistic effect not previously identified in the paper process.
公开/授权文献
- US20080017337A1 Compositions and processes for paper production 公开/授权日:2008-01-24
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