| abstract |
The invention relates to a method of manufacturing a three-dimensional object with an additive manufacturing system comprising obtaining a support material containing more than 50% by weight of a well-selected polyamide. The polyamide may be a semi-crystalline polyamide having a melting point (Tm), as determined according to ASTM D3418, ranging from 100 ° C to less than 250 ° C, which, when immersed in the water at a concentration of 250 g / l is water-soluble, dispersed in water or swollen with water with saturation water absorption of at least 25% by weight, based on the initial weight of the polyamide . An example of a polyamide is the condensation product of adipic acid comprising a diamine marketed by Huntsmann Chemicals under the name Jeffamine® EDR-148. |