UV CURABLE COMPOSITION FOR USE IN 3D PRINTING

    公开(公告)号:WO2020064523A1

    公开(公告)日:2020-04-02

    申请号:PCT/EP2019/075277

    申请日:2019-09-20

    Applicant: BASF SE

    Abstract: The present invention relates to photocurable compositions, comprising (A1) a N-vinyloxazolidinone of formula (I), wherein R 1 , R 2 , R 3 and R 4 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.

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