적층 제조를 위한 생분해성 및/또는 퇴비화 가능한 바이오 기반 분말, 및 이의 사용 방법

• Main Authors: DERKS FRANCISCUS JOHANNES MARIE, WITTERS STIJN, DE GROOT RUUD, FRIEDERICHS JOSEPH PETRONELLA
• Format: Patent
• Language: Korean
• Published: 14.06.2024
• 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 NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

본 발명은 폴리하이드록시알카노에이트(PHA) 분말을 포함하는 것과 같은 적층 가공용 특정 생분해성 및/또는 퇴비화성 바이오 기반 미립자 조성물에 관한 것으로, 미립자 조성물 및/또는 PHA 분말은 (a) ASTM D1895-96에 의해 결정된 바와 같이, 0.30 g/mL 초과의 자유 벌크 밀도, 및 (b) 15℃ 초과의 소결성 영역을 갖는다. 또한, 본 발명은 적층 가공 공정용 분말형 제작 재료로서 유용한 이러한 생분해성 및/또는 퇴비화성 바이오 기반 미립자 조성물을 제조하는 특정 방법에 관한 것이다. 또한, 본 발명은, 다른 곳에서 설명된 생분해성 및/또는 퇴비화성 바이오 기반 미립자 조성물을 이용하는 적층 가공 공정 및 그로부터 인쇄된 용품에 관한 것이다. The present invention is directed to certain biodegradable and/or compostable biobased particulate compositions for additive manufacturing, such as those including a polyhydroxyalkanoate (PHA) powder, wherein the particulate composition and/or the PHA powder possesses (a) a free bulk density, as determined by ASTM D1895-96, of greater than 0.30 g/mL, and (b) a sinterability region of greater than 15 degrees Celsius. Also, the invention is directed to certain methods of manufacturing such biodegradable and/or compostable biobased particulate compositions useful as powdered build material for additive manufacturing processes. In addition, the present invention is directed to additive manufacturing processes utilizing the biodegradable and/or compostable biobased particulate compositions elsewhere described, along with the articles printed therefrom.