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US 5,510,152 AGranted
Process for curing a gasket coating
AssigneeDana Corporation
InventorBrent R. Boldt
Life of this patent
Estimating the term…
Abstract
A formulation for a resilient gasket coating which is curable by ultraviolet radiation without emitting fumes into the surrounding environment. Different portions of the coating are cured by successive exposure to two different wavelengths of ultraviolet radiation during a continuous in-line process. The first wavelength cures an inner portion of the coating and bonds the coating to the substrate. The second wavelength cures a coating surface. The formulation permits ultraviolet curing of thicker pigmented coatings than have been previously known.
Claims9
A process for curing a gasket coating comprising the steps of:
- (a) providing a gasket body;
- (b) applying a resilient coating to said gasket body, said coating polymerizing in response to ultraviolet light;
- (c) exposing said coating and said body to ultraviolet radiation having a first wavelength to initiate polymerization of a first portion of said coating;
- and
- (d) exposing said coating and said body to ultraviolet radiation having a second wavelength different from said first wavelength to initiate polymerization of a different portion of said coating.
2 more elements
Dependencies are inferred from the claim text.