Patent · US Active

Photocurable composition for use in 3D printing

US12325806B2 · kind B2 · utility

0Cited by

6References

19Claims

0Family size

Assignee

BASF SE

Inventors

Andre Fuchs · Kandern, DE
Claudia Gisela Cordes · Lemförde, DE
Hendrik Wagner · Bielefeld, DE

Key dates

Filing date	Sep 20, 2019
Grant date	Jun 10, 2025
Priority date	—
Expiry date	Jun 18, 2042

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB33Y10/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Described herein are photocurable compositions,(A) a polyester urethane acrylate, or methacrylate (A),(B) an acrylamide, or methacrylamide component (B), and(C) a photoinitiator (C), where the polyester urethane acrylate, or methacrylate (A) is obtained by reacting (A1) a hydroxyalkylacrylate, or hydroxyalkylmethacrylate, (A2) an aliphatic diisocyanate, an aliphatic polyisocyanate, a cycloaliphatic diisocyanate, a cycloaliphatic polyisocyanate, an aromatic diisocyanate, or an aromatic polyisocyanate, or mixtures thereof, (A3) a polyester polyol, and (A4) optionally a second polyol.The compositions, from which cured three-dimensional shaped articles having high toughness, high E modulus and impact strength can be made, are particularly suitable for the production of three-dimensional articles by stereolithography.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.