초록 ▼

A formulation for covering vehicle panels, such as the inner fenders or floor boards of an automobile, with a chip resistant, vibration damping coating. The formulation includes a blocked polyurethane prepolymer (or a blocked polyisocyanate and a polyol), an epoxy resin, a filler and a plasticizer.

A formulation for covering vehicle panels, such as the inner fenders or floor boards of an automobile, with a chip resistant, vibration damping coating. The formulation includes a blocked polyurethane prepolymer (or a blocked polyisocyanate and a polyol), an epoxy resin, a filler and a plasticizer. A method for forming a chip resistant, vibration damping coating on such a panel including the steps of applying a coating mixture to the panel, the coating mixture including a blocked polyurethane prepolymer (or a blocked polyisocyanate and a polyol) and an epoxy resin, and then heating the panel to form the coating. An improved vehicle panel, wherein the improvement is a polyurethane modified epoxy coating (or a coating which is an interpenetrating network of polyurethane resin and epoxy resin) on the panel.

대표청구항 ▼

[ What is claimed is:] [1.] The formulation comprising:(a) about 15 to about 25 percent by weight of a blocked polyurethane prepolymer, or a mixture of a blocked polyisocyanate and a polyol;(b) about 30 to about 50 percent by weight of an epoxy resin composition comprising one or more aliphatic epox

[ What is claimed is:] [1.] The formulation comprising:(a) about 15 to about 25 percent by weight of a blocked polyurethane prepolymer, or a mixture of a blocked polyisocyanate and a polyol;(b) about 30 to about 50 percent by weight of an epoxy resin composition comprising one or more aliphatic epoxy resins and one or more aromatic epoxy resins;(c) about 20 to about 50 percent by weight of a filler composition comprising one or more spherical fillers and one or more platy fillers; and(d) about 3 to about 10 percent by weight of a plasticizer.