- 专利标题: Recycle pulp comprising cellulose acetate
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申请号: US16522973申请日: 2019-07-26
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公开(公告)号: US11639579B2公开(公告)日: 2023-05-02
- 发明人: Kenny Randolph Parker , Charles Stuart Everett , Melvin Glenn Mitchell
- 申请人: Eastman Chemical Company
- 申请人地址: US TN Kingsport
- 专利权人: Eastman Chemical Company
- 当前专利权人: Eastman Chemical Company
- 当前专利权人地址: US TN Kingsport
- 代理商 Polly C. Owen; Dennis V. Carman; Steven A. Owen
- 主分类号: D21H15/10
- IPC分类号: D21H15/10 ; D21H15/04 ; D21H11/20 ; D21H11/14
摘要:
A recycled cellulose pulp composition is provided which comprises recycled cellulosic fibers and cellulose ester staple fibers. A wet-laid fibrous product is also provided which comprises recycled cellulosic fibers and cellulose ester staple fibers. A bailed article is also provided that comprises recycled cellulosic fibers and cellulose ester staple fibers. In embodiments, the recycled cellulosic fibers are present in an amount of 50 wt % or more, based on the total dry weight of fibers, and the cellulose ester staple fibers are present in an amount sufficient to increase the Canadian standard freeness (CSF) of the composition by 5% or more compared to a 100 wt % cellulosic fiber pulp composition processed under similar conditions.
公开/授权文献
- US20200063366A1 RECYCLE PULP COMPRISING CELLULOSE ACETATE 公开/授权日:2020-02-27
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