Corning Incorporated
METHOD OF ADHESIVE SELECTION FOR COLD FORMING PRODUCT AND PROCESS

Abstract:

Aspects of this disclosure relate to a method for selecting an adhesive for bonding a cold-formed glass to a metal substrate and various cold-formed products. In one or more embodiments, the cold-formed products include a structural substrate comprising a curved surface and structural substrate coefficient of thermal expansion (CTE), a cold-formed and curved glass substrate attached to the curved surface with an adhesive, the glass substrate comprising a glass substrate CTE, the structural substrate and adhesive forming a structural substrate/adhesive interface and the glass substrate and the adhesive forming a glass substrate/adhesive interface, wherein the glass substrate CTE and the structural substrate CTE differ, wherein the product withstands overlap shear failure as determined by modified test method ASTM D1002-10 at -40.degree. C., 24.degree. C., and 85.degree. C. and tensile failure as determined by ASTM D897 at -40.degree. C., 24.degree. C., and 85.degree. C. at one or both of the structural substrate/adhesive interface and the glass substrate/adhesive interface.