Abstract: The invention is a process for bonding glass to a substrate without the need to prime the surface of the substrate. The process comprises, first, treating the surface of the substrate with air plasma, applying to the surface of the substrate or to the surface of the glass an adhesive capable of bonding to the treated substrate and glass, and contacting the glass and the substrate with the adhesive disposed between the substrate and the glass, and allowing the adhesive to cure. Preferably the substrate is coated with a coating. Preferred adhesives are polyurethane or silane functional elastomeric adhesives. The process of the invention allows bonding of glass to a substrate without the need to use a primer on the substrate prior to application of the adhesive. The process is especially effective in facilitating the bonding of glass to coated substrates, especially substrates coated with acid resistant coatings such as PPG's carbamate coating or DuPont's Gen III, IV and VI coatings.

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.

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.

Abstract: The invention is a process for bonding glass to a substrate without the need to prime the surface of the substrate. The process comprises, first, treating the surface of the substrate with air plasma, applying to the surface of the substrate or to the surface of the glass an adhesive capable of bonding to the treated substrate and glass, and contacting the glass and the substrate with the adhesive disposed between the substrate and the glass, and allowing the adhesive to cure. Preferably the substrate is coated with a coating. Preferred adhesives are polyurethane or silane functional elastomeric adhesives.

Abstract: In one aspect, this invention is a polyurethane sealant composition comprising (1) a urethane prepolymer having an isocyante functionality of at least about 2.0 and a weight average molecular weight of at least about 2,000; (2) a catalytic amount of a tin compound which catalyzes the reaction of isocyanate moieties with water or an active hydrogen containing compound; and (3) a stabilizing amount of an organophosphite which has an alkaryl ligand or both an aliphatic ligand and an aromatic ligand. The prepolymer may further comprises silane functionality or the composition may further comprise a compound or polymer which contains silane moieties and is compatible with the polyurethane prepolymer. The invention is also a method for bonding glass to a substrate which comprises contacting a sealant according to the invention with glass and another substrate with the sealant disposed between the glass and substrate and thereafter allowing the sealant to cure so as to bond the glass to the substrate.