In-situ nanoparticle formation in polymer clearcoats
AssigneeUniversity of Kentucky
InventorsUschi Ursula M. Graham, Rajesh Khatri, Burt H. Davis
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Abstract
Methods and compositions for forming a transparent clear coat characterized by a desired property, such as a color effect, resistance to UV light-induced degradation and/or scratch resistance, on a substrate are detailed according to embodiments of the present invention. Particular compositions and methods for producing a transparent clear coat layer include nanoparticles formed in-situ during curing of a transparent clear coat. Curable clear coat compositions are described according to embodiments of the present invention which include one or more substantially dissolved nanoparticle precursors.
Claims29
A method of forming a transparent coating on a substrate, the transparent coating having a color effect, resistance to UV light-induced degradation and/or scratch resistance, comprising:
- applying a curable clear coat composition comprising a first nanoparticle precursor, wherein the curable clear coat composition comprising a first nanoparticle precursor is substantially free of undissolved first nanoparticle precursor;
- and
- curing the curable clear coat composition to form a transparent coating comprising a polymer and a plurality of in-situ formed nanoparticles having an average particle size in the range of about 1-100 nanometers, inclusive, wherein the plurality of nanoparticles confers a color effect, resistance to UV light-induced degradation and/or scratch resistance to the transparent coating.
A composition for forming a transparent coating layer on a substrate, the transparent coating having a color effect, resistance to UV light-induced degradation and/or scratch resistance, comprising:
- a curable clear coat material having a first nanoparticle precursor substantially dissolved therein.
A composition for forming a transparent coating layer on a substrate, the transparent coating having a color effect, resistance to UV light-induced degradation and/or scratch resistance, comprising:
- a curable clear coat material comprising a first nanoparticle precursor, wherein the precursor comprises a metal selected from the group consisting of:
- Al, Au, Bi, Ce, Cr, Co, Cu, Fe, Mn, Ni, Pt, Sb, Se, Sn and Ti.
An article comprising a substrate having a transparent coating on at least one surface of the substrate, wherein the transparent coating comprises a cured clear coat polymer and a plurality of in-situ formed nanoparticles, and wherein the transparent coating confers a color effect, resistance to UV light-induced degradation and/or scratch resistance to the substrate.
Use of a curable clear coat composition for forming a transparent coating layer on a substrate, the transparent coating having a color effect, resistance to UV light-induced degradation and/or scratch resistance, wherein the curable clear coat composition comprises:
- a nanoparticle precursor.
Dependencies are inferred from the claim text.