Patent ID: 11913174
Assignee: THE PROCTER & GAMBLE COMPANY
Field: Surface technology, coating (Chemistry)
Classification: CPC B  D | IPC D

Claim 37:
38. Method of making a recyclable paper barrier laminate of claim 1 comprising:
a) applying a first aqueous solution of a water-soluble polymeric composition onto the surface of a removeable flat carrier, such as PET films or steel belts
b) removing the water from the first aqueous solution of a water-soluble polymeric composition to obtain a first water-soluble polymeric layer
c) applying an aqueous dispersion of hydrophilic nanoplatelets onto the outer surface of the first water-soluble polymeric layer
d) removing the water from the aqueous dispersion of hydrophilic nanoplatelets to obtain a water-dispersible barrier layer
e) applying a second aqueous solution of a water-soluble polymeric composition onto the inner surface of the recyclable paper layer
f) combining the outer surface of the water-dispersible barrier layer onto the second aqueous solution of a water-soluble polymeric composition
g) removing the water from the second aqueous solution of a water-soluble polymeric composition to obtain a second water-soluble polymeric layer
h) removing the flat carrier from the resulting recyclable paper barrier laminate.