Glazing
AssigneesPilkington Group Limited, Pilkington Automotive Limited
InventorsMichael Robert Greenall, Ashley Carl Torr, Jonathan Peter Voss
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Abstract
A laminated glazing comprises two plies of glass having an interlayer structure laminated therebetween. The interlayer structure comprises a first sheet of an interlayer material framing a suspended particle device film incorporated therein. The interlayer material is chosen to minimize the migration of the components of the interlayer material into the suspended particle device film. Preferably, the interlayer material does not contain plasticizers, or contains a plasticizer which does not diffuse into the suspended particle device film structure.
Claims24
A laminated glazing comprising first and second plies of glass having an interlayer structure laminated therebetween, the interlayer structure comprising a first sheet of an interlayer material having a hole therein, the first sheet of interlayer material being directly laminated between a second and a third sheet of an interlayer material, there being a suspended particle device film positioned in the hole in the first sheet of interlayer material, the suspended particle device film being coplanar with the first sheet of interlayer material and being framed by the first sheet of interlayer material,
- wherein the interlayer material components of the first sheet do not comprise a plasticizer, or comprise a plasticizer that does not migrate into the suspended particle device film,
- wherein the first sheet of interlayer material is one of ethylene vinyl acetate copolymer, polyurethane, or poly vinyl chloride.
A laminated glazing comprising first and second plies of glass having an interlayer structure laminated therebetween, the interlayer structure comprising a first sheet of an interlayer material having a hole therein, there being a suspended particle device film positioned in the hole in the first sheet of interlayer material, the suspended particle device film being coplanar with the first sheet of interlayer material and being framed by the first sheet of interlayer material, a thickness of the suspended particle device film being the same as a thickness of the first sheet of interlayer material, the first sheet of interlayer material being directly laminated between a second and a third sheet of an interlayer material,
- wherein the interlayer material components of the first sheet do not comprise a plasticizer, or comprise a plasticizer that does not migrate into the suspended particle device film,
- wherein the first sheet of interlayer material is ethylene vinyl acetate copolymer, and
- wherein the second sheet of interlayer material is ethylene vinyl acetate copolymer and the third sheet of interlayer material is ethylene vinyl acetate copolymer.
A laminated glazing comprising first and second plies of glass having an interlayer structure laminated therebetween, the interlayer structure comprising a first sheet of an interlayer material having a hole therein, the first sheet of interlayer material being directly laminated between a second and a third sheet of an interlayer material, there being a suspended particle device film positioned in the hole in the first sheet of interlayer material, the suspended particle device film being coplanar with the first sheet of interlayer material and being framed by the first sheet of interlayer material,
- wherein the interlayer material components of the first sheet do not comprise a plasticizer, or comprise a plasticizer that does not migrate into the suspended particle device film,
- wherein the first sheet of interlayer material is ethylene vinyl acetate copolymer,
- wherein the second sheet of interlayer material is ethylene vinyl acetate copolymer and the third sheet of interlayer material is ethylene vinyl acetate copolymer, and
- wherein at least one of the second and third sheets of interlayer material is in direct contact with and co-extensive with one of the first and second plies of glass.
Dependencies are inferred from the claim text.