Solid sheet of an adhesive hydrophilic gel and method for its production.
- 申请公布号：
- EP0251774(A2)
- 申请号：
- EP19870305806
- 申请日期：
- 1987.06.30
- 申请公布日期：
- 1988.01.07
- 申请人：
- NEPERA, INC.
- 发明人：
- KEUSCH, PRESTON;ESSMYER, JOHN L.
- 分类号：
- A61B5/0408;A61L15/00;A61L15/58;C08G65/02;C08G65/08;C08J3/28;C09J7/00
- 主分类号：
- A61B5/0408
- 摘要：
- <p>A solid sheet of adhesive hydrophilic gel which is a homogeneous aqueous mixture, substantially free of unbound water, monomers and crosslinking agents, consisting essentially of an amount dispersed uniformly in water of from about 4 to 35 wt.% of a crosslinked polyethylene oxide, effective to form with the water a tacky surfaced viscoelastic solid which sheet of hydrophilic gel is produced by subjecting a liquid film of an aqueous solution having a viscosity of about 2-2,000 x 10<3> cps of water soluble polyethylene oxide having a weight average molecular weight from about 0.02-6 x 10<6> Daltons to an amount of high energy radiation effective to convert the liquid film to a sheet of the viscoelastic solid having an adhesive face.</p>
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