Glazing unit

Details Glazing unit Glazing unit

1979-04-24

1981-08-18

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Edge feature

219203, 219522, 244121, 2441293, 428200, 428209, 428210, 428138, 428437, 428441, 428433, 428501, 428521, 428524, B32B 104, E04C 100, B32B 1710, B32B 1502

Patent

active

042846773

ABSTRACT:
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.

REFERENCES:
patent: 2697675 (1954-12-01), Gaiser
patent: 3288667 (1966-11-01), Martin
patent: 3356833 (1967-12-01), Orcutt
patent: 3612745 (1971-12-01), Warren
patent: 3740281 (1973-06-01), Fujiwaka
patent: 3903396 (1975-09-01), Boaz
patent: 4073986 (1978-02-01), Keslar

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