Printable Molded Articles Made from a Polyoxymethylene Polymer Composition
AssigneeTicona LLC
InventorsMalvika Bihari, Robert Gronner, Lowell Larson
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Abstract
Polymer compositions containing a polyoxymethylene polymer are disclosed that are receptive to paints and ink coatings. The polymer composition contains a polyoxymethylene polymer having a relatively high terminal hydroxyl group content in combination with a thermoplastic elastomer. In one embodiment, a coupling agent may be added for coupling the thermoplastic elastomer to the polyoxymethylene polymer. The polymer composition can be molded into various articles and then painted or printed with an ink composition. The polymer composition has been found to dramatically improve adhesion between the molded article and the ink or paint coating.
Claims22
A molded product comprising:
- a molded article made from a polymer composition comprising a polyoxymethylene polymer blended with a thermoplastic elastomer, the polyoxymethylene polymer having terminal groups and wherein at least about 50% of the terminal groups are hydroxyl groups, the thermoplastic elastomer being present in the polymer composition in an amount of at least about 5% by weight, the molded article having an exterior surface;
- and
- a coating applied to the exterior surface of the molded article, the coating comprising an ink composition, the coating being continuous or discontinuous over the surface of the molded article.
Dependencies are inferred from the claim text.