Nonfoggy moistureproof sheet

Claim 1

AS AN ARTICLE OF MANUFACTURE, A NON-FOGGING SHEET MATERIAL COMPRISING A NON-FIBROUS, CLEAR TRANSPARENT PELLICLE OF REGENERATED CELLULOSE HAVING ON BOTH FACES THEREOF A WATER-RESISTING COATING COMPRISING A RESIN FROM THE GROUP CONSISTING OF UREA-FORMALDEHYDE AND MELAMINE-FORMALDEHYDE RESINS AND AN OUTER INHERENTLY MOISTUREPROOF COATING ON BOTH FACES CONTAINING A SYNTHETIC THERMOPLASTIC RESIN SELECTED FROM THE GROUP CONSISTING OF CYCLIZED RUBBERS AND COPOLYMERS OF 20 TO 80% VINYLIDENE CHLORIDE WITH A MEMBER FROM THE GROUP CONSISTING OF VINYL CHLORIDE AND ACRYLONITRILE, SAID OUTER COATING CONTAINING, ON THE WEIGHT OF THE RESIN, 1/2 TO 5% OF A COMPATIBLE WETTING AGENT SELECTED FROM THE GROUP CONSISTING OF THE SURFACE-ACTIVE DIALKYL ESTERS OF SULFOPHTHALIC ACID AND OF SULFOSUCCINIC ACID, THE SURFACE-ACTIVE TRIALKYL ESTERS OF SULFOTRICARBALLYIC ACID, THE SULFATES OF HIGHER FATTY ALCOHOLS HAVING FROM 8 TO 20 CARBON ATOMS, SURFACE-ACTIVE SODIUM AND AMMONIUM SALTS OF ALKYL ARYL SULFONATES, SURFACEACTIVE ALKYLATED ARYL SULFONATES, ALKYL PHENYLENE SODIUM SULFONATES, THE STEARY LAMIDE OF METHYL TAURINE, AND THE SODIUM SULFONATE OF OLEIC ACID ESTERS OF ALIPHATIC ALCOHOLS, SAID OUTER COATING HAVING THE CHARACTERISTIC OF HEAT-SEALING AT TEMPERATURE BETWEEN 70 AND 130* C.