Solid sheet of an adhesive hydrophilic gel and method for its production.,申请号EP19870305806-传众专利搜索

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>