Methods of bonding vehicular glass assemblies utilizing two component urethanes
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1. A method of forming a bonded vehicular assembly by adhering a load-bearing attachment member to a glass surface, said method comprising:
- providing a substrate having a first glass surface and an opposing second surface;
providing an attachment member to be adhered to said first glass surface, said attachment member having a mounting surface;
forming a rapid set, rapid cure, two component urethane adhesive by mixing an isocyanate component and a polyol component;
depositing a layer of said adhesive on at least one of said attachment member mounting surface and said first glass surface, said layer of adhesive consisting essentially of said rapid set, rapid cure, two component urethane adhesive;
positioning said attachment member and said substrate after said mixing of said components and said depositing of said layer on said mounting surface or said first glass surface such that said adhesive layer is disposed between and contacting said attachment member mounting surface and at least a portion of said first glass surface of said substrate without exposure of said attachment member on said opposing second surface of said substrate;
said adhesive setting up during a set up period while said adhesive layer holds said attachment member against movement resulting from the weight of said substrate and/or attachment member and/or from application of a relatively slight force; and
allowing said adhesive layer to cure, said cured adhesive layer bonding said attachment member to said first glass surface prior to installation of said assembly in the vehicle.
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Abstract
Bonded vehicular glass assemblies utilizing two-component urethane adhesives to attach dynamic load-bearing attachment members to glass substrates to form a joint suitable for use on a vehicle, and related methods of forming are described herein. In addition, methods of attaching components to glass by use of these adhesives are disclosed. The two-component urethane adhesives utilized in this invention have been found to provide surprisingly strong bonds between glass and other materials which meet or exceed OEM requirements, and be particularly well suited for use in vehicles.
87 Citations
39 Claims
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1. A method of forming a bonded vehicular assembly by adhering a load-bearing attachment member to a glass surface, said method comprising:
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providing a substrate having a first glass surface and an opposing second surface; providing an attachment member to be adhered to said first glass surface, said attachment member having a mounting surface; forming a rapid set, rapid cure, two component urethane adhesive by mixing an isocyanate component and a polyol component; depositing a layer of said adhesive on at least one of said attachment member mounting surface and said first glass surface, said layer of adhesive consisting essentially of said rapid set, rapid cure, two component urethane adhesive; positioning said attachment member and said substrate after said mixing of said components and said depositing of said layer on said mounting surface or said first glass surface such that said adhesive layer is disposed between and contacting said attachment member mounting surface and at least a portion of said first glass surface of said substrate without exposure of said attachment member on said opposing second surface of said substrate; said adhesive setting up during a set up period while said adhesive layer holds said attachment member against movement resulting from the weight of said substrate and/or attachment member and/or from application of a relatively slight force; and allowing said adhesive layer to cure, said cured adhesive layer bonding said attachment member to said first glass surface prior to installation of said assembly in the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of forming a bonded vehicular assembly by adhering a load-bearing attachment member to a glass surface, said method comprising:
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providing a substrate having a first glass surface and an opposing second surface; providing an attachment member to be adhered to said first glass surface, said attachment member having a mounting surface; forming a rapid set, rapid cure, two component urethane adhesive with an isocyanate component and a polyol component by metering a controlled volume of each component and mixing said metered volumes of said components; robotically depositing a layer of said adhesive on at least one of said attachment member mounting surface and said first glass surface, said layer of adhesive consisting essentially of said rapid set, rapid cure, two component urethane adhesive; positioning said attachment member and said substrate after said mixing of said components and said depositing of said layer on said mounting surface or said first glass surface such that said adhesive layer is disposed between and contacting said attachment member mounting surface and at least a portion of said first glass surface of said substrate without exposure of said attachment member on said opposing second surface of said substrate; said adhesive setting during a set up period while said adhesive layer holds said attachment member against movement resulting from the weight of said substrate and/or said attachment member and/or from application of a relatively slight force; and allowing said adhesive layer to cure, said cured adhesive layer bonding said attachment member to said first glass surface prior to installation of said assembly in the vehicle. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification