Vehicle window and method of making the same

Details Vehicle window and method of making the same Vehicle window and method of making the same

1994-10-24

1996-06-11

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428208, 428416, 428426, 454121, 454130, B32B 900

Patent

active

055254012

ABSTRACT:
A vehicle window comprising a relatively thin sheet of clear plastic material having opposed surfaces, an electrically operable defrosting grid adhered to one surface of the relatively thin sheet, and a relatively thick substrate layer of clear plastic material having opposed surfaces curved into a vehicle window configuration. The relatively thick substrate layer is adhered to the one surface of the relatively thin sheet and the electrically operable defrosting grid adhered thereto while in contact therewith in a molten state under heat and pressure within a cavity defined by two generally parallel curved die surfaces of cooperating injection molding dies so that upon solidification the surfaces of the relatively thin sheet are retained in a curved configuration in generally parallel coextensive relation to corresponding curved surfaces of the relatively thick substrate layer and a method of making the window wherein the electrically operable defrosting grid is formed by silk screening onto one surface of the relatively thin sheet while in a substantially planar condition a curable electrically conductive ink in the form of a defrosting grid and then curing the curable electrically conductive ink on the one surface of said relatively thin sheet so that the defrosting grid is stably adhered thereto.

REFERENCES:
patent: Re25711 (1965-01-01), Gaiser
patent: 3900634 (1975-08-01), Plumat et al.
patent: 4109044 (1978-08-01), Marriott
patent: 4218500 (1980-08-01), Radisch
patent: 4453669 (1984-06-01), Karla et al.
patent: 4600627 (1986-07-01), Honda et al.
patent: 4623582 (1986-11-01), Hasegawa et al.
patent: 4743741 (1988-05-01), Ramus

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