Transparent fibrous sheets
AssigneeAndrews Paper & Chemical Co., Inc.
InventorsPeter Muller, Henry Mustacchi, Leonard Kreicas
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Abstract
Fibrous sheets are transparentized by coating them with monomers of the formula: ##STR1## wherein R is hydrogen or lower alkyl and n is an integer of 0 to 6; and polymerizing the monomers.
Claims17
A transparent, non-stratified, water and alcohol resistant, resin reinforced cellulosic fibrous sheet having as the resin component, polymerized monomer of the formula:
- ##STR4## wherein R is selected from the group consisting of hydrogen and lower alkyl and n is an integer of from 0 to 6.
A transparent, non-stratified, water and alcohol resistant, resin reinforced cellulosic fibrous sheet having polymerized resin components, polymerized from a mixture of monomers of the formula:
- ##STR5## wherein R is selected from the group consisting of hydrogen and lower alkyl and n is an integer of from 0 to 6;
- and ##STR6## wherein R.sup.1 is selected from the group consisting of hydrogen and lower alkyl.
A transparent, non-stratified, water and alcohol resistant, resin reinforced cellulosic fibrous sheet having as the resin component, polymerized monomer of the formula:
- ##STR7## wherein R is selected from the group consisting of hydrogen and lower alkyl and n is an integer of from 0 to 6;
- in combination with polystyrenes, polybutenes and hydrogenated hydrocarbon resins or their mixtures.
The method of transparentizing fibrous sheets, which comprises;
- providing a sheet of fibrous material for transparentizing and which comprises a plurality of discrete fibers which are disposed so that at least a portion of said fibers are bonded together at cross-over points, forming voids between the fibers at non-crossover points;
- applying to a surface of the sheet a monomer of the formula:
- ##STR8## wherein R is selected from the group consisting of hydrogen and lower alkyl, and n is an integer of a 0 to 6;
- in admixture with a polymerization catalyst;
- evenly distributing the applied mixture of monomer and catalyst so as to fill voids in the sheet with the mixture of monomer and catalyst;
- and polymerizing the monomer in the voids.
Dependencies are inferred from the claim text.