Environmentally resistant assembly containing an electronic device for use in a tire

• US 8,430,142 B2
• Filed: 02/25/2009
• Issued: 04/30/2013
• Est. Priority Date: 02/25/2009
• Status: Active Grant

• Current Assignee: Goodyear Tire & Rubber Company
• Original Assignee: Goodyear Tire & Rubber Company
• Inventors: Incavo, Joseph Alan, Busch, Warren James, Tubb, Gary Edwin
• Primary Examiner(s): Del Sole, Joseph
• Assistant Examiner(s): Brown, II, David N
• Application Number:
  US12/392,677
• Publication Number:
  US 20100212791A1
• Time in Patent Office: 1,525 Days
• Field of Search: 152/152.1
• US Class Current: 152/152.1
• CPC Class Codes: B29D 2030/0072 Attaching fasteners to tyres, e.g. patches, in order to connect devices to tyres
• CPC Class Codes: B60C 2019/004 Tyre sensors other than for detecting tyre pressure
• CPC Class Codes: B60C 23/0493 for attachment on the tyre

Abstract

An assembly for use in or on a tire. The assembly comprises an electronic device having a body and an adhesive coating on at least the body of the electronic device. The body is at least partially made of a plastic material or a fiber reinforced plastic (FRP). The adhesive coating comprises an imide-based adhesive. The adhesive coating may have a polymer bonding group comprising at least one of natural rubber, butyl rubber, a chlorinated elastomer, polybutadiene, synthetic polyisoprene, or styrene-butadiene rubber or a combination thereof. In one embodiment, the assembly further comprises a first elastomeric layer and a second elastomeric layer. The adhesive coating secures the body to the first and the second elastomeric layers. The first and second elastomeric layers may comprise a butyl-containing compound or natural rubber compound. In one embodiment, the electronic device is a radio frequency identification tag having the body and an antenna.

Claims

1. An assembly for use on a tire having a tire wall, the assembly comprising:

a first elastomeric layer and a second elastomeric layer, wherein the first and second elastomeric layers comprise a butyl-containing compound or a natural rubber compound, and wherein the first and second elastomeric layers are configured with each elastomeric layer having a reduced step-off to define a tapered edge;

an electronic device having a body being at least partially made of a plastic material, wherein the electronic device is positioned between the first and second elastomeric layers;

an adhesive coating on the body of the electronic device that secures the body to the first and second elastomeric layers, the adhesive coating comprising an imide-based adhesive; and

a tie-gumstrip layer on the first elastomeric layer on a side opposite the second elastomeric layer for securing the assembly to an innerliner of the tire.

2. The assembly of claim 1 wherein the adhesive coating has a polymer bonding group comprising at least one of natural rubber, a chlorinated elastomer, butyl rubber, styrene-butadiene, polybutadiene, synthetic polyisoprene or a combination thereof.

3. The assembly of claim 1 wherein the adhesive coating is isocyanate free.

4. The assembly of claim 1 wherein the adhesive coating further comprises a zinc-containing compound.

5. The assembly of claim 1 wherein the adhesive coating further comprises a selenium-containing compound.

6. The assembly of claim 1 wherein a thickness of the first elastomeric layer and the second elastomeric layer taken through a center of the assembly is greater than a thickness taken along a portion of a periphery of the assembly.

7. The assembly of claim 1 wherein the first elastomeric layer and the second elastomeric layer are at least partially cured.

8. A tire comprising:

a tire wall; and

an assembly affixed to the tire wall, the assembly comprising;

a first elastomeric layer and a second elastomeric layer, wherein the first and second elastomeric layers comprise a butyl-containing compound or a natural rubber compound, and wherein the first and second elastomeric layers are configured with each elastomeric layer having a reduced step-off to define a tapered edge;

an electronic device having a body being at least partially made of a plastic material, wherein the electronic device is positioned between the first and second elastomeric layers; and

an adhesive coating on the body of the electronic device that secures the body to the first and second elastomeric layers, the adhesive coating comprising an imide-based adhesive; and

a tie-gumstrip layer on the first elastomeric layer on a side opposite the second elastomeric layer for securing the assembly to an innerliner of the tire.

9. The tire of claim 8 wherein the adhesive coating has a polymer bonding group comprising at least one of natural rubber, a chlorinated elastomer, butyl rubber, styrene-butadiene rubber, polybutadiene or synthetic polyisoprene or a combination thereof.

10. The tire of claim 8 wherein the adhesive coating is isocyanate free.

11. The tire of claim 8 wherein the adhesive coating further comprises:

at least one of a zinc-containing compound or a selenium-containing compound or a combination thereof.

12. The tire of claim 8 wherein the first elastomeric layer and the second elastomeric layer are at least partially cured.

13. The tire of claim 8 wherein a thickness of the first elastomeric layer and the second elastomeric layer taken through a center of the assembly is greater than a thickness taken along a portion of a periphery of the assembly.

14. A tire comprising:

a tire wall; and

an assembly affixed to the tire wall, the assembly comprising;

a first elastomeric layer;

a second elastomeric layer, wherein the first and the second elastomeric layers are selected from a group consisting of a butyl-containing compound and a natural rubber compound, wherein the first and second elastomeric layers are configured with each elastomeric layer having a reduced step-off to define a tapered edge;

an RFID tag between the first elastomeric layer and the second elastomeric layer, the RFID tag having a body and an antenna, the body being at least partially made of a plastic material;

an imide-based adhesive coating on at least the body of the RFID that secures the body to the first and the second elastomeric layers, the imide-based adhesive coating comprising at least one of a zinc-containing compound or a selenium-containing compound or combinations thereof and a polymer bonding group comprising at least one of natural rubber, a chlorinated elastomer, butyl rubber, styrene-butadiene, polybutadiene, or synthetic polyisoprene or a combination thereof; and

a tie-gumstrip layer on the first elastomeric layer on a side opposite the second elastomeric layer for securing the assembly to an innerliner of the tire.