초록 ▼

An electrically heated laminated aircraft glazing including at least two sheets of glass and an interposed non-brittle thermoplastic interlayer. A bus bar and an electrically conducting film are located on the inwardly disposed surface of one of the sheets and the bus bar covered with a thin layer o

An electrically heated laminated aircraft glazing including at least two sheets of glass and an interposed non-brittle thermoplastic interlayer. A bus bar and an electrically conducting film are located on the inwardly disposed surface of one of the sheets and the bus bar covered with a thin layer of polyisobutylene resin. Additional layers of polyisobutylene resin are provided between the interlayer material and selected glass areas to prevent delamination and cold chipping of the glazing with subsequent moisture ingress and bus bar failure.

대표청구항 ▼

In an electrically conducting laminated glazing unit including at least two sheets of glass and an interposed plastic interlayer bonded to said sheets and in which said plastic interlayer and one of said glass sheets extends beyond an edge of the other of the sheets, a bus bar along the margin of an

In an electrically conducting laminated glazing unit including at least two sheets of glass and an interposed plastic interlayer bonded to said sheets and in which said plastic interlayer and one of said glass sheets extends beyond an edge of the other of the sheets, a bus bar along the margin of an inwardly disposed surface of one of said sheets, a transparent electrically conducting film also on said surface and in contact with said bus bar, a first layer of polyisobutylene resin covering the area of the bus bar between said glass surface and the plastic interlayer, and a second layer of polysiobutylene resin disposed over the extended portion of said one glass sheet between the glass and the plastic interlayers, said resin layers comprising between 65 percent and 80 percent by weight of polyisobutylene with the remainder consisting essentially of carbon black and having a viscosity average molecular weight of between 8500 and 12000. A laminated aircraft glazing unit including at least one sheet of glass and a layer of non-brittle thermoplastic material integrally bonded thereto over a surface of the sheet and extending outwardly beyond the glass sheet, a thickened portion on the extended part of said thermoplastic layer integrally bonded to an edge of said glass sheet, a strip of polyisobutylene resin tape between the glass sheet and the thermoplastic layer along a margin of said glass sheet adjacent said edge, and a second strip of polyisobutylene resin tape between said edge of the glass sheet and the thickened portion of the extended thermoplastic layer, said resin tapes comprising between 65 percent and 80 percent by weight of polyisobutylene with the remainder consisting essentially of carbon black and having a viscosity average molecular weight of between 8500 and 12000.