Polyurethane visionary laminate glass and method of manufacture

Details Polyurethane visionary laminate glass and method of manufacture Polyurethane visionary laminate glass and method of manufacture

1987-08-28

1989-04-18

Swisher, Nancy A. B.

Stock material or miscellaneous articles

Composite

Of polyamidoester

428429, 428432, 428436, B32B 1710, G02C 710

Patent

active

048226807

ABSTRACT:
A polyurethane filmed glass material for use as monolithic insulated glass or laminated glass in spandrel application is provided. Polyurethane sheet which has been ultraviolet light stabilized is pigmented, coated or otherwise colored to produce a coloring which is predictable and reproducible. A coupling agent is employed and the polyurethane adheres directly to a glass sheet without glues or adhesives.
The manufacture of the glass material includes laying a sheet of colored polyurethane sheet material on a sheet of glass which has been prepared with a coupling agent. Outside surfaces of the polyurethane are coated with a release material. The glass sheet and the prepared polyurethane sheet are then loaded into a vacuum bag which in turn is then loaded into an autoclave. The bag is subjected to a vacuum while the autoclave vessel is pressurized. The autoclave vessel is simultaneously run through a temperature curve to heat and cool the polyurethane and glass whereby the polyurethane is temporarily softened and thereby adheres to the glass. The laminated product is thereafter tempered.

REFERENCES:
patent: 4683172 (1987-07-01), LeGrand et al.
EP 008134, Goepfert, Jun. 1983 from 428/425.6.

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