FIBER-BLENDED HETEROPHASIC COPOLYMER FOR ADDITIVE-MANUFACTURE FEEDSTOCK

• Main Authors: SING, Michelle, HERRINGTON, Kevin, FALLON, Jacob, DI PINTOR DA LUZ, Alexandre
• Format: Patent
• Language: English; French; German
• Published: 07.02.2024
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention relates to an additive-manufacture feedstock, comprising a heterophasic copolymer having a melt flow rate of from 0.1 to 150 g/10 min (230° C./2.16 kg), measured according to ASTM D 1238, and a fiber blended in the heterophasic copolymer. The first-fiber-blended heterophasic copolymer, when in the form of a printed article, exhibits a minimized warpage. The invention also relates to methods of making the additive-manufacture feedstock and methods of 3D printing using the additive-manufacture feedstock in various forms.