Liquid sorbent materials
AssigneeMinnesota Mining and Manufacturing Company
InventorsJohn F. Eisele, Elizabeth A. Mercer
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Abstract
Composite, liquid-sorbent media which can be applied to various substrates to provide improved liquid-sorbent materials. The composite media comprise a liquid-sorbent underlayer and, overlying said underlayer, a liquid-permeable surface layer, the liquid sorptivity of said underlayer being greater than the liquid sorptivity of said surface layer. Transparent sheets having the liquid-sorbent composite media coated on the surface are described as a preferred embodiment of the invention.
Claims16
A composite medium for sorbing liquids comprising, in combination, a liquid-sorbent underlayer and, overlying said underlayer, a liquid-permeable surface layer capable of retaining its integrity in contact with said liquid and liquid applying means, the liquid sorptivity of said underlayer being greater than the liquid sorptivity of said surface layer whereby the composite medium has a sorption time less than the sorption time of said surface layer.
A substantially transparent, ink-receptive sheet comprising a transparent polyester sheet and, adhered to at least a portion of at least one major surface thereof, a composite, organic liquid-sorbent medium comprising a layer of poly(methyl vinyl ether/monomethyl maleate) adhered to said sheet and, in overlying, intimate contact therewith, a thin surface layer comprising cellulose acetate butyrate polymer.
An imaging system comprising an organic imaging liquid, a substrate having an imaging surface, and an imaging liquid application means, wherein the improvement comprises a composite imaging surface comprising, in combination, a liquid-sorbent underlayer and, overlying said underlayer, a liquid-permeable surface layer capable of retaining its integrity in contact with said liquid and said application means, the liquid sorptivity of said underlayer being greater than the liquid-sorptivity of said surface layer, whereby the composite imaging surface has a sorption time less than the sorption time of said surface layer.
Dependencies are inferred from the claim text.