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US 4,303,717 AGranted
Heat release layer for decalcomanias
AssigneeCommercial Decal, Inc.
InventorRay Andrews
Life of this patent
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AssigneeCommercial Decal, Inc.
InventorRay Andrews
Estimating the term…
A novel heat release layer for use in connection with decalcomania paper and in decalcomanias which include a vitreous design layer surrounded by a heat release layer and a heat activatable adhesive layer is disclosed. In particular, the novel heat release layer disclosed comprises a combination of a normally solid straight chain, primary aliphatic oxyalkylated alcohol with either/or (1) a normally solid polyethylene glycol having an average molecular weight of greater than about 1,000, and (2) an amide of a fatty acid. Preferably, the oxyalkylated alcohol has a molecular weight above about 1350, the polyethylene glycol is present in the heat release layer in an amount of from about 1 to 50 weight percent thereof, and/or the amide of a fatty acid is present in the heat realease layer in an amount of from about 1 to 25 weight percent thereof. In addition, methods of preparing such heat release decalcomanias are also disclosed, including applying a heat release layer to a backing sheet, applying a design layer to the heat release layer, and applying a heat activatable adhesive layer to the design layer, again wherein the heat release layer is as described above. A novel combination of heat release layers and heat activatable adhesive layers is also disclosed, including the heat release layer described above in combination with a heat activatable adhesive layer including an acrylic resin and a tackifier for the acrylic resin, and including an organic solvent therein.
A heat release decalcomania comprising a backing sheet, a heat release layer disposed on said backing sheet, a design layer disposed on said heat release layer and a heat activatable adhesive layer disposed on said design layer, said heat release layer comprising a normally solid straight chain, primary aliphatic oxyalkylated alcohol in combination with a normally solid polyethylene glycol having an average molecular weight of greater than about 1,000, said normally solid polyethyelene glycol being present in said heat release layer in an amount of from about 1 to about 50 percent.
A release paper for use in the preparation of heat release decalcomania, said paper including a paper backing sheet coated with a heat release layer, wherein said heat release layer comprises a normally solid, straight chain, primary aliphatic oxyalkylated alcohol in combination with a normally solid polyethylene glycol having an average molecular weight of greater than about 1,000, wherein said normally solid polyethylene glycol is present in said heat release layer in an amount of from about 1 to about 50 percent.
A heat release decalcomania comprising a backing sheet, a heat release layer disposed on said backing sheet, a design layer disposed on said heat release layer and a heat activatable adhesive layer disposed on said design layer, said heat release layer comprising a normally solid straight chain, primary, aliphatic oxyalkylated alcohol in combination with an amide of a fatty acid, said amide of a fatty acid being present in said heat release layer in an amount of from about 1 to about 25 percent.
A release paper for use in the preparation of heat release decalcomania, said paper including a paper backing sheet coated with a heat release layer, wherein said heat release layer comprises a normally solid, straight chain, primary aliphatic oxyalkylated alcohol in combination with an amide of a fatty acid, said amide of a fatty acid being present in said heat release layer in an amount of from about 1 to about 25 percent.
A method of forming a heat release decalcomania which comprises applying a heat release layer to a backing sheet, applying a design layer to said heat release layer, and applying a heat activatable adhesive to said design layer, said heat release layer comprising a normally solid straight chain primary aliphatic oxyalkylated alcohol in combination with a normally solid polyethylene glycol having an average molecular weight of greater than about 1,000, wherein said normally solid polyethylene glycol is present in said heat release layer in an amount of from about 1 to about 50 percent.
A method of forming a heat release decalcomania which comprises applying a heat release layer to a backing sheet, applying a design layer to said heat release layer, and applying a heat activatable adhesive to said design layer, said heat release layer comprising a normally solid straight chain primary aliphatic oxyalkylated alcohol in combination with an amide of a fatty acid, said amide of a fatty acid being present in said heat release layer in an amount of from about 1 to about 25 percent.
Dependencies are inferred from the claim text.