This invention relates to a colorant composition comprising a layered clay material intercalated with at least one cationic colorant, optical brightener or a mixture thereof. This invention also relates to a polymer-clay nanocomposite comprising (i) a melt-processible matrix polymer, and (ii) a layered clay material intercalated with at least one cationic colorant, optical brightener or a mixture thereof, wherein the clay-cation colorant/optical brightener intercalate is incorporated into the matrix polymer. The invention further relates to articles produced from the polymer nanocomposite.

Esta invenção relaciona-se a uma composição do colorant que compreende um material mergulhado da argila intercalado com ao menos o um colorant cationic, o brightener ótico ou uma mistura disso. Esta invenção relaciona também a um nanocomposite da polímero-argila compreender (i) derrete-processible o polímero da matriz, e (ii) um material mergulhado da argila intercalou com ao menos o um colorant cationic, brightener ótico ou uma mistura disso, wherein o brightener do argila-clay-cation colorant/optical intercala é incorporada no polímero da matriz. A invenção mais adicional relaciona-se aos artigos produzidos do nanocomposite do polímero.
 
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