Solvent-free heat-curing 1-component coating materials

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

C09D 175/12 (2006.01) B65D 23/08 (2006.01) C03C 17/00 (2006.01) C03C 17/32 (2006.01) C08G 18/79 (2006.01) C09D 175/04 (2006.01)

Patent

CA 2214340

Disclosed are a heat-curing one-component coating material having a viscosity of 60°C of 1000-50,000 mPas, essentially comprising A) 85-96% by weight of at least one isocyanate prepolymer containing isocyanurate groups and urethane groups, B) 4-12% by weight of finely divided melamine having a mean particle diameter of 1-30 µm, and C) 0-3% by weight of auxiliaries, as well as a process for coating glass using the heat-curing coating material. The coating material is useful for coaling a glass article such as glass bottles.

On divulgue un produit de revêtement thermodurcissable à un constituant caractérisé par une viscosité à 60 degrés C de 1 000-50 000 mPas, comprenant essentiellement A) 85-96 % en poids d'au moins un prépolymère d'isocyanate contenant des groupes isocyanurate et des groupes uréthane, B) 4-12 % en poids de mélamine finement divisée dont le diamètre moyen des particules est de 1 à 30 micromètres, et C) 0-3 % en poids d'adjuvants, ainsi qu'un procédé de revêtement du verre à l'aide d'un produit de revêtement thermodurcissable. Le produit de revêtement est utile pour le revêtement d'un objet en verre comme les bouteilles.

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