- 专利标题: Absorbent structures comprising coated super-absorbent polymer particles
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申请号: US10881090申请日: 2004-06-30
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公开(公告)号: US07108916B2公开(公告)日: 2006-09-19
- 发明人: Bruno Johannes Ehrnsperger , Heike Opper , Udo Friedel Schoenborn
- 申请人: Bruno Johannes Ehrnsperger , Heike Opper , Udo Friedel Schoenborn
- 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 Eric T. Addington; Dara M. Kendall; Ken K. Patel
- 优先权: EP03014926 20030630
- 主分类号: B32B5/16
- IPC分类号: B32B5/16
摘要:
This invention is directed to super-absorbent material, which comprises a super absorbent polymer core that is coated with an organic, polar coating agent, and whereby the particulate super-absorbent material has a contact angle and a corresponding cos CAm (as defined herein), whereby the cos CAm is more than 0.3, and whereby, when said coating agent is in the form of particles, said coating agent particles have a (weight) mean particle size of from 0.001 to 1 micron. The material is useful for absorbent structures and absorbent articles (comprising such structures). The coated super-absorbent material is typically present in said absorbent structure at least at a concentration of 50% by weight of the structure, preferably even 80% or even 90%. The invention also provides a process for making the absorbent material.
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