System and method for using a VOC free low radiant flux LED UV curable composition
OwnerMatthew Kent Springerinventor
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Abstract
The present invention generally relates to a system and method for using a volatile organic compound (VOC) free low radiant flux LED UV curable composition, and more particularly to unique and novel uses of the composition such as one or two or more of a fire retardant, clear coat, composite material, resin, top coat, improved holdout coating, a sealant coat, and combinations of the same.
Claims46
A method of using a volatile organic compound (VOC) free low radiant flux UV curable composition as a fire retardant coating to improve a fire retardant nature of a substrate and protect the substrate, comprising the steps of:
- (a) preparing the substrate for receiving the VOC free low radiant flux UV curable composition by roughening a surface of the substrate and cleaning the surface;
- (b) providing the VOC free low radiant flux UV curable composition;
- (c) applying the VOC free low radiant flux UV curable composition on the substrate to form a combination fire retardant and protective coating;
- and
- (d) applying an energy source having a wavelength in a range from about 360 nm to about 420 nm and a radiant flux at a surface of the applied coating of about 100 mW/cm2 or less to cure the combination fire retardant and protective coating within about 120 seconds or less, wherein the cured fire retardant and protective coating passes an aerospace sixty second vertical flammability test with a flame time of zero seconds and a drip flame time of zero seconds,
- wherein the VOC free low radiant flux UV curable composition, comprises:
- an acrylate monomers/oligomers;
- a thiol monomers/oligomers;
- a photo initiator;
- and
- a radical inhibitor.
A method of using a volatile organic compound (VOC) free low radiant flux UV curable composition as a fire retardant and clear protective coating to improve a fire retardant nature of a substrate and protect the substrate, comprising the steps of:
- (a) providing the substrate;
- (b) preparing the substrate for receiving the VOC free low radiant flux UV curable composition by roughening a surface of the substrate and cleaning the surface;
- (c) providing the VOC free low radiant flux UV curable composition;
- (d) applying the VOC free low radiant flux UV curable composition on the substrate to form a fire retardant and clear protective coating;
- and
- (e) applying an energy source having a wavelength in a range from about 360 nm to about 420 nm and a radiant flux at a surface of the applied coating of about 100 mW/cm2 or less to cure the fire retardant coating within about 120 seconds or less, wherein the cured fire retardant and clear protective coating passes an aerospace sixty second vertical flammability test with a flame time of zero seconds and a drip flame time of zero seconds, repeating steps (b), (d) and (e) for a predetermined number of repeats in order to achieve a predetermined thickness,
- wherein the VOC free low radiant flux UV curable composition, comprises:
- an acrylate monomers/oligomers;
- a thiol monomers/oligomers;
- a photo initiator;
- and
- a radical inhibitor.
A method of using a volatile organic compound (VOC) free low radiant flux UV curable composition as a fire retardant and protective coating, comprising the steps of:
- (a) preparing a substrate for receiving the VOC free low radiant flux UV curable composition;
- (b) applying the VOC free low radiant flux UV curable composition to the substrate;
- and
- (c) applying an energy source having a wavelength in a range from about 360 nm to about 420 nm and a radiant flux at a surface of the applied UV curable composition of about 500 mW/cm2 or less to cure at least a portion of the UV curable composition and form the fire retardant and protective coating on the substrate, wherein the cured fire retardant and protective coating passes an aerospace sixty second vertical flammability test, and
- wherein the VOC free low radiant flux UV curable composition, comprises:
- an acrylate monomers/oligomers;
- a thiol monomers/oligomers;
- a photo initiator;
- and
- a radical inhibitor.
Dependencies are inferred from the claim text.