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US 4,378,392 AGranted
Laminate to extend the life of photographs
OwnerJoseph M. Segelinventor
Life of this patent
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OwnerJoseph M. Segelinventor
Estimating the term…
A laminate to extend the life of photographs and prevent them from gradual deterioration due to environmental conditions comprises a laminate made of a transparent film of ultraviolet-stabilized polyethylene terephthalate or ultraviolet-stabilized acrylonitrile and a transparent silicone or acrylic adhesive bonded to the film, the laminate being adapted to be bonded to the image surface of a photograph by the adhesive. Alternatively, to provide even greater protection against moisture vapor and oxidation, an additional layer of a transparent fluorocarbon polymer may be bonded to the ultraviolet-stabilized polyethylene terephthalate or ultraviolet-stabilized acrylonitrile with a silicone or acrylic adhesive. Alternately, to provide a better aesthetic appearance by means of thermal texturization, an ultraviolet-absorbing polymethylmethacrylate film may be bonded to the ultraviolet-stabilized polyethylene terephthalate or ultraviolet-stabilized acrylonitrile with a silicone or acrylic adhesive. Any of these combinations is effective to protect photographs over a long period of time from elements which cause fading and degradation, such as ultraviolet radiation, cycling relative humidity, atmospheric pollution and oxidation.
A laminate to protect photographs from deterioration comprising a first transparent film selected from the group consisting of fluorocarbon polymer and ultraviolet-absorbing polymethylmethacrylate, a second film selected from the group consisting of ultraviolet-stabilized polyethylene terephthalate or ultraviolet-stabilized acrylonitrile, having first and second major faces, a transparent adhesive bonding the first film to the first major face of the second film, and a transparent adhesive applied to the second major face of the second film adapted to bond the laminate to the photograph, the adhesive being selected from the group consisting of silicone adhesive and acrylic adhesive, the laminate being effective to absorb ultraviolet radiation.
A laminate to protect a photograph from deterioration comprising a transparent film selected from the group consisting of ultraviolet-stabilized polyethylene terephthalate and ultraviolet-stabilized acrylonitrile, and a layer of transparent adhesive bonded to the film, the adhesive being selected from the group consisting of silicone adhesive and acrylic adhesive, the laminate being adapted to be bonded to the image surface of a photograph by the adhesive, the laminate being effective to absorb ultraviolet radiation.
Dependencies are inferred from the claim text.