Primerless windshield sealant composition and method

C - Chemistry – Metallurgy – 09 – J

Patent

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Details

400/7207, 402/9,

C09J 175/04 (2006.01) C09J 183/06 (2006.01) C25D 13/06 (2006.01) C25D 13/12 (2006.01)

Patent

CA 2010821

A primerless, one-component, moisture-curable polyurethane-based adhesive composition useful for affixing glass panels directly to electrocoat painted metal substrates comprises a polyurethane base polymer containing an electrocoat adhesion promoter. The sealant composition has fast cure times at ambient temperatures and forms a strong bond directly to electrocoat painted metal substrates without the need for a sealant primer.

Une composition adhésive à un seul composant à base de polyuréthane durcissant à l'humidité, ne nécessitant pas d'apprêt et s'avérant utile pour fixer des panneaux de verre directement sur des supports métalliques à revêtement de peinture électrolytique comprend un polymère à base de polyuréthane contenant un promoteur d'adhésion aux revêtements électrolytiques. La composition du produit de scellement durcit rapidement à température ambiante et forme une forte liaison directement avec les supports métalliques à revêtement de peinture électrolytique sans qu'on ait à utiliser d'apprêt de scellement.

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