Patent · US Active

Dual cure polyurethane formulations for 3D printing applications

US12296527B2 · kind B2 · utility

0Cited by

0References

9Claims

0Family size

Assignee

Henkel AG & Co. KGaA · DE

Inventors

Sascha Poeller · Bochum, DE
Manuel Schiel · Dressendorf, DE
Tanja Rossberg · Haan, DE
Andreas Ferencz · Goldkronach, DE
Tim Welters · Hilden, DE
Uwe Franken · Dormagen, DE

Key dates

Filing date	Nov 8, 2021
Grant date	May 13, 2025
Priority date	—
Expiry date	Nov 24, 2042

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29K2105/0094
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The present invention lies in the field of 3D printing methods. In particular, the invention relates to 3D printing methods for the production of a 3D part in a layer-by-layer manner, wherein the printable composition is a pasty polyurethane composition comprising at least one polyisocyanate resin, at least one monomer and/or prepolymer that is polymerizable by exposure to radiation and at least one photoinitiator, wherein the pasty polyurethane composition has a viscosity factor (1.5/15) of at least 2 at application temperature.

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