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Radiation-curable coating compositions, composite and plastic materials coated with said compositions and methods for their preparation
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a technology of compositions and compositions, applied in the field of radiation-curable coating compositions, composite and plastic materials coated with said compositions and methods for their preparation, can solve problems such as drawbacks
Inactive Publication Date: 2008-11-20
FINISHES UNLTD
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While coatings have been developed for application onto t
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[0008]It has been discovered that radiation-curable coating compositions comprising a multifunctional oligomer, a monomer selected from the group consisting of monofunctional monomers, difunctional monomers and mixtures thereof, a photoinitiator, a polyester resin and a polycarboxylic acid, provides performance advantages relative to existing coatings, and is particularly useful when applied and cured on certain substrates—composite substrates such as cementitious composites, plastic composites, ceramic composites, and engineered woods, as well as on plastics per se. For example, and among other benefits, the inventive coating, after curing on a composite substrate such as a cementitious composite, a plastic composite, a ceramic composite, a plastic composite, engineered wood or plastic, adheres well to these substrates even after exposure of the coated material to a range of temperatures, moisture and sunlight; resists marring and abrasion; provides an aesthetically pleasing appear...
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Abstract
Curable coating composition suitable for use on composite substrates such as plastic composites, cementitious composites, ceramic composites, and engineered wood, or on plastic materials. The curable coating composition comprises a multifunctional oligomer, a monomer selected from the group consisting of monofunctional monomers, difunctional monomers and mixtures thereof, a photoinitiator, a polyester resin and a polycarboxylic acid. Also disclosed is a method of coating the substrates with the curable coating composition and a coated substrate wherein the cured coating resides on the surface of the substrate.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This patent application claims priority to and the benefit of U.S. Provisional Patent Application No. 60 / 968,990, filed Aug. 30, 2007, and U.S. Provisional Patent Application No. 60 / 914,224, filed Apr. 26, 2007, each of which is incorporated by reference.BACKGROUND OF THE INVENTION[0002]Composite substrates such as cementitious composites, plastic composites, ceramic composites, and engineered woods are well known. These materials are currently used in many construction and manufacturing applications, for example, outdoor deck flooring, railings, fences, landscaping timbers, cladding and siding, park benches, molding and trim, window and door frames, and indoor furniture.[0003]While coatings have been developed for application onto the exterior surface of these substrates, drawbacks remain. Thus, there exists a need for improved: coating compositions suitable for application onto composite substrates; methods of preparing coated composite...
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