Glass laminate using textured adhesive
AssigneeSolutia Inc.
InventorsDavid Lee Honeycutt, Matthew Coda, Lee Campbell Boman, Julius G. Kozak
Life of this patent
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Abstract
A method for laminating glass, a laminate assembly, and an adhesive-coated plastic material used in a laminate assembly. Specifically an adhesive, once applied to a plastic layer is grooved or textured to allow formerly trapped air to escape from between layers of a laminate assembly during a laminate process. This can allow for the adhesive layer to be thinner, while still providing for a final product that is relatively air bubble-free and optically pleasing or substantially free of optical defects caused by waviness of the plastic layer between two PVB sheets and/or wrinkles of the plastic sheet.
Claims13
An adhesive-coated plastic material used for forming laminated glass, the material comprising:
- a flexible plastic film having two opposing sides;
- and
- a first layer of adhesive applied to one of said two opposing sides, wherein the first layer of adhesive comprises polyvinyl butyral, said first layer of adhesive having a thickness in a range of 10 to 50 microns and further having a plurality of grooves, the grooves having respective widths in a range of 20 to 100 microns and respective depths in a range of about 10 to 50% of the thickness of the first layer of adhesive;
- and
- a second layer of adhesive on an opposed second side of the flexible plastic film, wherein said second layer of adhesive comprises polyvinyl butyral.
An adhesive-coated plastic material used for forming laminated glass, the material comprising:
- a flexible polyethylene terephthalate film having two opposing sides;
- and
- a first layer of adhesive applied to one of said two opposing sides, wherein the first layer of adhesive comprises polyvinyl butyral, said first layer of adhesive having a thickness in a range of 10 to 50 microns and further having a plurality of grooves, the grooves having respective widths in a range of 20 to 100 microns and respective depths in a range of about 10 to 50% of the thickness of the first layer of adhesive;
- and
- a second layer of adhesive on an opposed second side of the flexible polyethylene terephthalate film, wherein said second layer of adhesive comprises polyvinyl butyral.
An adhesive-coated plastic material used for forming laminated glass, the material comprising:
- a flexible polyethylene terephthalate film having two opposing sides;
- and
- a first layer of adhesive applied to one of said two opposing sides, wherein the first layer of adhesive comprises polyvinyl butyral, said first layer of adhesive having a thickness in a range of 10 to 50 microns and further having a plurality of grooves, the grooves having respective widths in a range of 20 to 100 microns and respective depths in a range of about 10 to 50% of the thickness of the first layer of adhesive and a spacing in a range of 0.1 to 10 millimeters;
- and
- a second layer of adhesive on an opposed second side of the flexible polyethylene terephthalate film, wherein said second layer of adhesive comprises polyvinyl butyral and has a thickness in a range of in the range of 0.5 to 1.5 millimeters.
Dependencies are inferred from the claim text.