Bonded vehicular glass assemblies utilizing urethane adhesive and method for making same
First Claim
Patent Images
1. A vehicular window assembly suitable for use in a vehicle, said window assembly comprising:
- a glass panel having a first surface and an opposing second surface;
a gasket for attachment to said glass panel for mounting said window assembly to the vehicle, said gasket comprising at least one of a rigid polymeric material and a flexible polymeric material, said gasket disposed adjacent at least a perimeter portion of said first surface;
said glass panel and said gasket joined by an adhesive layer;
said adhesive consisting essentially of urethane, said urethane adhesive disposed between said first surface of said glass panel and said gasket, said layer of urethane adhesive cured to form a load bearing joint suitable for use on the vehicle;
said layer of cured urethane adhesive bonding said gasket to said first surface of said glass panel prior to installation of said assembly in the vehicle and without exposure of said bonded gasket on said second surface of said panel; and
wherein said joint including said urethane adhesive is capable of withstanding a localized tensile load of at least 5 pounds per square inch without failure due to separation from the underlying glass, said localized tensile load being applied in a temperature range of −
40°
to 100°
C., said cure of said joint being accelerated by at least one of a) heating and b) at least one chemical agent; and
wherein said assembly further includes an attachment member adhesively attached to said first surface of said glass panel at a location spaced from said gasket.
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Abstract
A bonded vehicular glass assembly utilizes a urethane adhesive to attach a dynamic load-bearing attachment member to a glass substrate to form a joint suitable for use on a vehicle. Related methods of forming, and methods of attaching components to glass are disclosed.
105 Citations
54 Claims
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1. A vehicular window assembly suitable for use in a vehicle, said window assembly comprising:
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a glass panel having a first surface and an opposing second surface;
a gasket for attachment to said glass panel for mounting said window assembly to the vehicle, said gasket comprising at least one of a rigid polymeric material and a flexible polymeric material, said gasket disposed adjacent at least a perimeter portion of said first surface;
said glass panel and said gasket joined by an adhesive layer;
said adhesive consisting essentially of urethane, said urethane adhesive disposed between said first surface of said glass panel and said gasket, said layer of urethane adhesive cured to form a load bearing joint suitable for use on the vehicle;
said layer of cured urethane adhesive bonding said gasket to said first surface of said glass panel prior to installation of said assembly in the vehicle and without exposure of said bonded gasket on said second surface of said panel; and
wherein said joint including said urethane adhesive is capable of withstanding a localized tensile load of at least 5 pounds per square inch without failure due to separation from the underlying glass, said localized tensile load being applied in a temperature range of −
40°
to 100°
C., said cure of said joint being accelerated by at least one of a) heating and b) at least one chemical agent; and
wherein said assembly further includes an attachment member adhesively attached to said first surface of said glass panel at a location spaced from said gasket. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A bonded vehicular assembly suitable for use in a vehicle, said assembly comprising:
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a glass substrate having a first surface and an opposing second surface;
a gasket for attachment to said glass substrate for mounting said vehicular assembly to a vehicle, said gasket comprising at least one of a rigid polymeric material and a flexible polymeric material, said gasket disposed adjacent at least a perimeter portion of said first surface; and
a layer of urethane adhesive disposed between and bonding said first surface of said glass substrate to said gasket, said urethane adhesive disposed between said first surface of said glass panel and said gasket, said layer of urethane adhesive cured to form a load bearing joint suitable for use on the vehicle;
said layer of cured urethane adhesive bonding said gasket to said first surface of said glass substrate prior to installation of said assembly in the vehicle and without exposure of said bonded gasket on said second surface of said substrate; and
wherein said joint including said urethane adhesive is capable of withstanding a localized tensile load of at least 5 pounds per square inch without failure due to separation from the underlying glass;
said localized tensile load being applied in a temperature range of −
40°
C. to 100°
C.;
said cure of said joint being accelerated by at least one of a) heating, and b) at least one chemical agent. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method of adhering a gasket to a glass surface for use in a vehicle, said method comprising:
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providing a substrate having a glass surface and an opposing second surface;
providing a gasket to be adhered to said glass surface, said gasket adapted for attachment to said glass surface for mounting the substrate and gasket to a vehicle, said gasket having a mounting surface of less than about six (6) square inches and comprising at least one of a rigid polymeric material, said gasket disposed adjacent at least a perimeter portion of said first surface;
providing a urethane adhesive;
depositing an effective amount of said urethane adhesive on at least one of said gasket mounting surface and said glass surface;
positioning said gasket and said substrate such that said urethane adhesive is disposed between and contacting said gasket and at least a portion of said glass surface of said substrate without exposure of said gasket on said opposing second surface of said substrate; and
curing said urethane adhesive to form a load bearing joint between said gasket and said portion of said glass surface of said substrate including accelerating said curing by at least one of a) heating and b) at least one chemical agent whereby said joint which is formed is capable of withstanding a localized tensile load of at least five (5) pounds per square inch when said load is applied at a temperature in the range of −
40°
C. to 100°
C. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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Specification