Dual cure, in-mold process for manufacturing abrasion resistant, coated thermoplastic articles
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United States of America Patent
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May 25, 1999
Grant Date -
N/A
app pub date -
Oct 5, 1992
filing date -
Oct 5, 1992
priority date (Note) -
Expired
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Abstract
Laminated, molded plastic articles having an excellent abrasion resistant coating are prepared by a 2-step process including applying to a mold surface a 100% reactive coating composition, at least partially curing the coating composition, applying to the exposed surface of the cured coating composition a thermoplastic material, and curing the thermoplastic material to form the laminated molded article. The coating composition includes a polyfunctional acrylic monomer, such as dipentaerythritol monohydroxypentacrylate, a mono functional acrylic monomer, such as hydroxymethylacrylate, an acrylic-soluble thermoplastic, such as cellulose acetate butyrate, an aminoplast resin, such as melamine-formaldehyde, and a free radical initiator. The coating composition is at least partially cured by either UV or IR radiation.
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