MODELING MATERIAL FORMULATION USABLE IN ADDITIVE MANUFACTURING OF THREE-DIMENSIONAL OBJECT AT LOW TEMPERATURE

To provide a modeling material formulation capable of being used in additive manufacturing performed at a low work temeperature (e.g., less than 50°C), a method for manufacturing a shelled three-dimensional object, and the shelled three-dimensional object.SOLUTION: A modeling material formulation system suitable for use in 3D inkjet printing of a three-dimensional shelled object, is provided. The formulation system includes at least a first modeling material formulation and a second modeling material formulation. Each of the first modeling material formulation and the second modeling material formulation has a viscosity of 50 cPs or less at 35°C. The first modeling material formulation is characterized, when hardened, by a heat deflection temperature (HDT) of at least 60°C as measured according to ASTM D-648-06. The second modeling material formulation is characterized, when hardened, by an Izod impact resistance (IR) value of at least 40 J/m as measured according to ASTM D-256-06.SELECTED DRAWING: Figure 7 【課題】低い作業温度（例えば５０℃未満）で実施される付加製造に使用可能な造形用材料配合物、鞘付き三次元物体を製作する方法および鞘付き三次元物体を提供する。【解決手段】三次元鞘付き物体の３Ｄインクジェット印刷に使用するのに好適な造形用材料配合物系であって、前記配合物系が、少なくとも第一造形用材料配合物及び第二造形用材料配合物を含み、前記第一造形用材料配合物及び第二造形用材料配合物のそれぞれが、３５℃で５０ｃＰｓ以下の粘度を具備し、前記第一造形用材料配合物が、硬化されたとき、ＡＳＴＭ Ｄ－６４８－０６に従って測定すると少なくとも６０℃の熱変形温度（ＨＤＴ）によって特徴づけられ、前記第二造形用材料配合物が硬化されたとき、ＡＳＴＭ Ｄ－２５６－０６に従って測定すると少なくとも４０Ｊ／ｍのアイゾット衝撃抵抗（ＩＲ）値によって特徴づけられる。【選択図】図７