Silane functional adhesive composition and method of bonding a window to a substrate without a primer
AssigneeDow Global Technologies LLC
InventorsZiyan Wu, Daniel P. Heberer
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Abstract
This invention relates to silane functional adhesive composition and to a method of bonding a window to a painted substrate using the adhesive without the need for a primer for the painted substrate. In one embodiment, the invention is a method of bonding glass to a painted substrate, such as a window in a vehicle. The process comprises applying to the glass or the unprimed painted substrate an adhesive as described herein; contacting the glass with the unprimed painted substrate wherein the adhesive is located between the window and the substrate; and allowing the adhesive to cure.
Claims16
An adhesive composition comprising
- one or more polymers having a flexible backbone and silane moieties capable of silanol condensation;
- one or more titanates or zirconates having one or more ligands comprising a hydrocarbyl phosphate ester, a hydrocarbyloxy phosphate ester, or a hydrocarbyl sulfonate ester;
- an anhydrous strong organic acid which is miscible with the polymer and enhances the bonding of the adhesive to a coated unprimed substrate.
Dependencies are inferred from the claim text.