发明名称 |
Nonwoven sheet and film containing water absorbent keratin |
摘要 |
A hydratable, highly absorbent keratin solid fiber or powder capable of absorbing a large weight excess of water may be produced by partially oxidizing hair keratin disulfide bonds to sulfonic acid residues and reacting the sulfonic acid residues with a cation. The neutralized suspension can be filtered, washed, and dried, leaving keratin solid which can be shredded into fibers and further ground into powder. Addition of water to the solid produces a hydrogel. The powder or hydrogel may be useful as an absorbent material, as a therapeutic for skin, or as an excipient. The keratin materials can be incorporated into nonwoven films. Another use for the hydrogel is as a biocompatible viscoelastic filler for implant applications.
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申请公布号 |
US6274155(B1) |
申请公布日期 |
2001.08.14 |
申请号 |
US20000512918 |
申请日期 |
2000.02.25 |
申请人 |
KERAPLAST TECHNOLOGIES, LTD. |
发明人 |
VAN DYKE MARK E.;TIMMONS SCOTT F.;BLANCHARD CHERYL R.;SILLER-JACKSON ARLENE J.;SMITH ROBERT A. |
分类号 |
A61F13/15;A61K8/04;A61K8/65;A61K9/14;A61K9/20;A61K9/70;A61K38/17;A61K47/42;A61K47/48;A61L15/32;A61L27/22;A61Q19/00;(IPC1-7):A01N25/34;A01N37/18;A61F13/00;A61K38/00 |
主分类号 |
A61F13/15 |
代理机构 |
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代理人 |
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