Abstract: Disclosed are additive manufacturing compositions comprising: A) 100 to 30 weight percent of a polyamide composition comprising: a) 95 to 5 weight percent of at least one semi-crystalline copolyamide having a melting point, said semi-crystalline copolyamide comprising: i) 5 to 40 mole percent aromatic repeat units derived from one or more aromatic dicarboxylic acids with 8 to 20 carbon atoms and at least one aliphatic diamine with 4 to 20 carbon atoms; and ii) 60 to 95 mole percent aliphatic repeat units derived from one or more aliphatic dicarboxylic acids with 6 to 20 carbon atoms and one or more aliphatic diamines with 4 to 20 carbon atoms; b) 5 to 95 weight percent of at least one amorphous copolyamide comprising: iii) 60 to 90 mole percent aromatic repeat units derived from isophthalic acid and at least one aliphatic diamine with 4 to 20 carbon atoms; and iv) 10 to 40 mole percent aromatic repeat units derived from terephthalic acid and at least one aliphatic diamine with 4 to 20 carbon atoms; and B) 0 t

Abstract: A method is provided for cleaning the interior of polymer processing equipment having a resin composition retained therein, wherein a contaminant material is adhered to at least a portion of the interior surface of the polymer processing equipment. The method comprises the steps of: charging the polymer processing equipment having a residual polymer composition retained in the interior thereof with a purging composition comprising 45-94 weight % of starch; 0.