Priming composition for the treatment of a glass, treated glass, and process for said treatment
AssigneeSaint-Gobain Vitrage International
InventorsAndre Beyrle, Philippe Armand
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Abstract
The invention relates to a process for the treatment of the periphery of a glass, more particularly an encapsulated glass, which consists of treating part of the surface of the glass by at least one silane and a composition able to form a layer having free OH groups. This process is useful for treating glass so that a resin, such as a polyurethane, upon contact with the treated glass will readily adhere and bond to the glass. The treated glass can be fitted into car body bays or openings.
Claims11
A priming composition for the adhesion of a polyurethane to glass, comprising (i) a silane and (ii) a composition able to from a layer with free OH groups which is composed of a polyol component and an isocyanate component, wherein said polyol component comprises at least one polyvinylchloride copolymer having free hydroxyl groups and is in excess compared with said isocyanate component.
Dependencies are inferred from the claim text.