Thermoplastic Powder Compositions

A composition comprising a blend of

• (1) a semicrystalline polyamide with a melting point in the range of about 160° C. to about 230° C. as measured according to ASTM D789 and a melt viscosity less than about 500 Pa·sec, measured in a capillary rheometer at 250° C. and a shear rate of 12 sec−1, in the range of about 40 to about 70 weight % of the combination of (1) and (2);
• and
• (2) an ionomer in the range of about 30 to about 60 weight % of the combination of (1) and (2), wherein the ionomer comprises at least one partially neutralized acid copolymer, wherein the acid copolymer comprises, based on the total weight of the copolymer (i) about 79 to about 90 weight % of copolymerized units of an alpha-olefin;
• (ii) about 10 to about 21 weight % of copolymerized units of an alpha-beta unsaturated carboxylic acid;
• (iii) 0 to about 7 weight % of copolymerized units of an optional third comonomer, such that the total of comonomers other than the alpha-olefin is present in the range of about 10% to about 21 weight % of the copolymer;
• (iv) about 20 mol % to about 50 mol % of the total carboxylic acid groups are neutralized to salts comprising zinc cations and optionally cations of a second element (M2) that is different from Zn selected from Groups I of the Periodic Table of the Elements wherein the mole equivalents of zinc comprise at least 20% of the salts;
• and (iv) the ionomer has a melt index in the range of 10 to 200 g/10 min. measured at 190° C. using a 2.16 kg weight.