发明授权
US09205405B2 Reduced furfural content in polyacrylic acid crosslinked cellulose fibers used in absorbent articles
有权
用于吸收制品的聚丙烯酸交联纤维素纤维中的糠醛含量降低
- 专利标题: Reduced furfural content in polyacrylic acid crosslinked cellulose fibers used in absorbent articles
- 专利标题(中): 用于吸收制品的聚丙烯酸交联纤维素纤维中的糠醛含量降低
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申请号: US14270598申请日: 2014-05-06
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公开(公告)号: US09205405B2公开(公告)日: 2015-12-08
- 发明人: Jorg Endres , Holger Beruda , Ludwig Busam , Angel Stoyanov
- 申请人: The Procter & Gamble Company
- 申请人地址: US OH Cincinnati
- 专利权人: The Procter & Gamble Company
- 当前专利权人: The Procter & Gamble Company
- 当前专利权人地址: US OH Cincinnati
- 代理商 Christian M. Best
- 主分类号: B01J20/26
- IPC分类号: B01J20/26
摘要:
Absorbent articles comprising bleached polycrylic acid crosslinked cellulose fibers with reduced furfural content are disclosed. The reduced furfural content is accompanied by a strong reduction of malodor associated with crosslinked fibers. Methods of furfural reduction include treatment with hydrogen peroxide in the absence of alkaline or other bleaching agents subsequent to curing polyacrylic acid crosslinked cellulose fibers. Some embodiments of treated polycrylic acid crosslinked cellulose fibers have a furfural content lower than 1.3 ppm. In some embodiments, the reduction of furfural content of the treated crosslinked fibers compared to untreated crosslinked fibers is at least 55%. In some embodiments, furfural content decreases with aging of the treated crosslinked fibers.
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