The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 2012
Filed:
Jun. 08, 2007
Jessica A. Schroeder, Sterling Heights, MI (US);
Anil K. Sachdev, Rochester Hills, MI (US);
Mark W. Verbrugge, Troy, MI (US);
Thomas C. Pederson, Rochester Hills, MI (US);
Jessica A. Schroeder, Sterling Heights, MI (US);
Anil K. Sachdev, Rochester Hills, MI (US);
Mark W. Verbrugge, Troy, MI (US);
Thomas C. Pederson, Rochester Hills, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
In an illustrative embodiment, two panels of different materials may be bonded with a structural adhesive composition comprising microcapsules containing corrosion inhibiting materials for protecting the panels from corrosion. For example, a steel vehicle door outer panel may be bonded to an aluminum alloy or magnesium alloy inner panel using an epoxy adhesive. Dispersed within the uncured adhesive are an abundance of microcapsules filled with a fluid or mobile material for reacting with the iron and/or aluminum or magnesium to inhibit corrosion arising from the facing surfaces of the mixed metal panels. The protective material is released from the microcapsules for diffusion through the cured or uncured interfacial adhesive to react with one or both panel surfaces and form a protective coating on the surfaces.