Adhesive polyethylene oxide hydrogel sheet and its production

Details Adhesive polyethylene oxide hydrogel sheet and its production Adhesive polyethylene oxide hydrogel sheet and its production

1986-06-30

1987-08-04

McCamish, Marion C.

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

Halogen containing compound

204168, 204169, 428220, 428290, B32B 2700

Patent

active

046845585

ABSTRACT:
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.times.10.sup.3 cps of a linear water soluble polyethylene oxide having a weight average molecular weight from about 0.02-6.times.10.sup.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.

REFERENCES:
patent: 4524087 (1983-07-01), Engel

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