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Coating layer with self-repairing properties for panes exposed to atmospheric agents

  • US 4,657,796 A
  • Filed: 12/06/1985
  • Issued: 04/14/1987
  • Est. Priority Date: 12/06/1984
  • Status: Expired due to Term
First Claim
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1. A transparent polyurethane coating layer with self-repairing properties for panes or transparent objects made of glass or plastic material, formed from a reactive mixture comprising a plurifunctional isocyanate component and a plurifunctional polyalcohol component, wherein the isocyanate component of the reactive mixture is chosen from the essentially trifunctional aliphatic polymers formed from 1,6-hexamethylenediisocyanate monomer, having an NCO radical content of 15 to 25% by weight and the polyalcohol component of the reactive mixture is a plurifunctional polyester polyalcohol having an OH radical content of 3 to 12% by weight.

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