公开(公告)号：US20220064350A1

公开(公告)日：2022-03-03

申请号：US17422819

申请日：2020-01-10

Applicant: BASF SE

Inventor： Andre FUCHS ,  Rolf MUELHAUPT ,  Anne Cathrin ASMACHER ,  Vitalij SCHIMPF

IPC: C08F222/10 ,  B29C64/124 ,  B33Y70/00 ,  B33Y10/00 ,  C07D407/04

Abstract: The present invention relates to photocurable compositions, comprising a limonene-based (meth)acrylate (A) obtainable by reacting a) 1 equivalent of a compound of formula, especially (I) with 1 to 3 equivalents of a compound of formula (II) in the presence of a catalyst and an inhibitor at elevated temperature and its use in a photopolymerization 3D printing process. The limonene-based (meth)acrylate (A) significantly increases stiffness and glass transition temperatures of photo-cured acrylate compositions. While such effects are usually achieved with the use of aromatic or bisphenol A based compounds, the limonene-based (meth)acrylate (A) offers a sustainable alternative at much lower viscosity.

公开(公告)号：US20220064349A1

公开(公告)日：2022-03-03

申请号：US17421319

申请日：2020-01-10

Applicant: BASF SE

Inventor： Andre FUCHS ,  Rolf MUELHAUPT ,  Anne Cathrin ASMACHER ,  Vitalij SCHIMPF

IPC: C08F220/58 ,  C09D4/00 ,  C09D133/26 ,  C07C271/20 ,  B33Y70/00

Abstract: The present invention relates to prepolymers of formula (I), a process for the production of the prepolymers, photocurable compositions, comprising the prepolymers of formula (I) and their use in a photopolymerization 3D printing process. In contrast to usual urethane (meth)acrylates. The prepolymers of formula (I) can be prepared without using toxic isocyanates and exhibit pending hydroxyl groups along their molecule backbone which allow for the introduction of further side chains or side groups to improve, for example, the interaction with inorganic fillers.