3D 인쇄에 사용하기 위한 UV 경화성 조성물

• Main Authors: D'ANDOLA GIOVANNI, GUENTHER ERHARD, FUCHS ANDRE, KUNSMANN KEITEL DAGMAR PASCALE, LOISEL EDOUARD
• Format: Patent
• Language: Korean
• Published: 03.06.2021
• 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; ADHESIVES; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

본 발명은, (A1) 하기 화학식 I의 N-비닐옥사졸리딘온: TIFFpct00076.tif4449 [상기 식에서, R1, R2,R3 및 R4는 서로 독립적으로 수소 원자 또는 탄소수 10 이하의 유기 기임], (A2) 임의적으로, 하나 이상의 제 2 반응성 희석제, (B) 하나 이상의 올리고머, 및 (C) 광개시제(C) 를 포함하는 광경화성 조성물에 관한 것이며, 이때 상기 성분 (A1)의 양은 상기 성분 (A1), (A2) 및 (B)의 양을 기준으로 5 내지 70 중량%이고, 상기 광경화성 조성물의 점도는 30℃에서 10 내지 3000 mPa·s, 바람직하게는 10 내지 1500 mPa·s 범위이다. 강성과 고 인성이 조합된 균형 잡힌 기계적 특성을 갖는 경화된 3차원 성형 물품을 제조할 수 있는 상기 조성물은 광조형 및 광중합체 분사에 의한 3차원 물품의 제조에 특히 적합하다. The present invention relates to photocurable compositions, comprising (A1) a N-vinyloxazolidinone of formula (I), wherein R1, R2, R3 and R4 are independently of each other a hydrogen atom or an organic group having not more than 10 carbon atoms, (A2) optionally one, or more second reactive diluents, (B) one, or more oligomers, and (C) a photoinitiator (C), wherein the amount of component (A1) is 5 to 70% by weight based on the amount of components (A1), (A2) and (B), wherein the viscosity of said photocurable composition is in the range 10 to 3000 mPa·s, preferably 10 to 1500 mPa·s at 30° C. The compositions, from which cured three-dimensional shaped articles having balanced mechanical properties combining stiffness with high toughness can be made, are particularly suitable for the production of three-dimensional articles by stereolithography and photopolymer jetting.