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US 4,068,033 AGranted
Heat-releasable decalcomanias and adhesive composition therefor
AssigneeCommercial Decal, Inc.
InventorHazel Meade
Life of this patent
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AssigneeCommercial Decal, Inc.
InventorHazel Meade
Estimating the term…
An adhesive composition for a heat-releasable ceramic decalcomania is provided, the adhesive composition comprising an acrylic resin, a tackifier for said acrylic resin, which tackifier comprises a polyethylene glycol and/or solid polyoxyalkylene derivatives of propylene glycol or ethylenediamine, and an organic solvent therefor. Preferably, this tackifier is employed in combination with a second tackifier comprising one or more aromatic acid esters of monomeric and polymeric alkyl polyols. A heat-releasable ceramic decalcomania is provided which comprises a backing sheet, optionally a wax-impervious barrier layer disposed on said backing sheet, a wax layer disposed on said backing sheet or barrier layer (where employed), a design receiving support layer disposed on said wax layer, a design layer disposed on said support layer, and an adhesive layer as described above disposed on said design layer. In addition, methods for forming such decalcomania and for decorating ware with such decalcomania are also provided.
A heat release ceramic decalcomania comprising a backing sheet, a wax layer disposed on said backing sheet, a design layer disposed on said wax layer, and a heat-activatable adhesive layer disposed on said design layer, said adhesive layer comprising from about 10 to about 40% of an acrylic resin as an adhesive base component, said acrylic resin comprising the polymers and copolymers of the acrylates and methacrylates, from about 1 to about 25% of a tackifier for said acrylic resin, said tackifier being selected from the group consisting of polyethylene glycols and solid polyoxyalkylene derivatives of propylene glycol and ethylene diamine, said tackifier being capable of providing an adhesive which softens when subjected to heat and remains tacky at a temperature substantially below its melting point, and an organic solvent therefor, said adhesive compositon being capable of burning upon the firing of said decalcomania substantially without the deposition of a residue.
method for forming a decalcomania comprising a wax coated backing sheet, a design layer disposed on said wax coated backing sheet, and a heat-activatable adhesive layer disposed on said design layer, which comprises applying said design layer on said wax coated backing sheet, and applying said heat-activatable adhesive layer on said design layer, said adhesive layer comprising from about 10 to about 40% of an acrylic resin as an adhesive base component, said acrylic resin comprising the polymers and copolymers of the acrylates and methacrylates, from about 1 to about 25% of a tackifier for said acrylic resin, said tackifier being selected from the group consisting of a polyethylene glycol and solid polyoxyalkylene derivatives of propylene glycol and ethylene diamine, and an organic solvent therefor.
A method for forming a heat-releasable ceramic decalcomania which comprises applying a first sealant layer over a wax-coated backing sheet, applying a first design layer on said sealant layer, applying a second sealant layer over said first design layer, applying a second design layer over said second sealant layer, and then applying a heat-activatable adhesive layer over said second design layer, said adhesive layer comprising from about 10 to about 40% of an acrylic resin as an adhesive base component, said acrylic resin comprising the polymers and copolymers of the acrylates and methacrylates, from about 1 to about 25% of a tackifier for said acrylic resin being selected from the group consisting of a polyethylene glycol, and solid polyoxyalkylene derivatives of propylene glycol and ethylene diamine and an organic solvent therefor.
Dependencies are inferred from the claim text.