Method for adhering structures using silicone adhesive system

Patent metadata

Field	Value
Publication number	US-10106712-B2
Application number	US-201415106044-A
Country	US
Kind code	B2
Filing date	Nov 12, 2014
Priority date	Dec 19, 2013
Publication date	Oct 23, 2018
Grant date	Oct 23, 2018

Abstract

A method of adhering a first structure to a second structure using a primer, containing a primer fugitive inhibitor, and a film adhesive by removing the primer fugitive inhibitor under vacuum at room temperature conditions.

First claim

What is claimed is:

1. A method of adhering a first structure including a first surface to a second structure including a second surface, the method comprising the steps of:
(a) applying a primer, formulated with a primer fugitive inhibitor, to the first surface and to the second surface;
(b) applying a film adhesive, formulated with a catalyst stable at room temperature conditions, to one of the first surface and the second surface so as to create first and second pre-adhered surfaces;
(c) placing the first pre-adhered surface into contact with the second pre-adhered surface to form a pre-adhered assembly; and
(d) placing the pre-adhered assembly under a vacuum for a period of time; wherein the time period comprises a time to remove the primer fugitive inhibitor by vacuum so as to permit the first and second pre-adhered surfaces to be adhered to one another.

2. The method of claim 1 , wherein the primer comprises a platinum catalyzed silicone composition.

3. The method of claim 1 , wherein the film adhesive comprises a silicone composition.

4. The method of claim 1 , wherein the catalyst is selected from a group consisting of: peroxide and platinum.

5. The method of claim 4 , wherein the catalyst includes a catalyst fugitive inhibitor.

6. The method of claim 1 , wherein the primer is applied on the entire surface of the first structure surface and the entire surface of the second structure surface.

7. The method of claim 6 , wherein the primer is applied at a thickness of less than or equal to approximately 100 microinches.

8. The method of claim 1 , wherein the film adhesive is applied on the entire surface of either the first structure surface or the entire surface of the second structure surface.

9. The method of claim 8 wherein the film adhesive is applied at a thickness of less than or equal to approximately 0.02 inch.

10. The method of claim 5 , wherein the time period further comprises a time to remove the catalyst fugitive inhibitor by vacuum so as to permit the first and second pre-adhered surfaces to be adhered to one another.

11. The method of claim 1 , wherein the time period is less than or equal to approximately 8 hours.

12. The method of claim 1 , wherein step (d) further comprises applying pressure to pre-adhered assembly.

13. The method of claim 12 , wherein the pressure applied is less than or equal to approximately 250 pounds per square inch.

Assignees

• United Technologies Corp

Inventors

• Vontell John H
• Meyer Jesse C
• Watson Charles R

Classifications

• C09J183/04 Primary

  Polysiloxanes · CPC title

• C08G77/20

  containing silicon bound to unsaturated aliphatic groups · CPC title

• C09J5/02

  involving pretreatment of the surfaces to be joined · CPC title