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LOW VOC WATERBORNE PRIMER WITH HIGH FILM SMOOTHNESS
LOW VOC WATERBORNE PRIMER WITH HIGH FILM SMOOTHNESS
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机译:低挥发性有机化合物的水性漆
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摘要
An aqueous thermosetting primer composition includes a polyurethane polymer, an acrylic polymer polymerized in a wax having active hydrogen functionality, and a crosslinking component that is reactive with the wax and at least one of the polyurethane polymer and the acrylic polymer. The polyurethane polymer has a glass transition temperature of 0°C or less. The acrylic polymer has a glass transition temperature that is at least about 20°C higher than the glass transition temperature of polyurethane resin. The invention further provides a composite coating having as a primer layer a cured layer of the primer composition of the invention and having at least one topcoat layer.
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