Patent · US Active

Material system for producing a molded part using a water-soluble casting mold

US11072090B2 · kind B2 · utility

0Cited by

209References

16Claims

0Family size

Assignees

VOXELJET AG · DE
FluidSolids AG · CH

Inventors

Daniel Günther · Bremen, DE
Ingo Gnüchtel · Wengen, DE
Beat Karrer · Zürich, CH

Key dates

Filing date	Apr 3, 2018
Grant date	Jul 27, 2021
Priority date	—
Expiry date	Jun 18, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C33/3842
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A material system for producing a water-soluble casting mold, comprising at least one water-soluble material for building a casting mold in a layering method, as well as comprising at least one material for sealing the surface of the casting mold. The water-soluble material is a material for building the casting mold using a powder bed-based layering method. The sealing material is preferably water insoluble. The material system may also include a free-flowing, hardenable material, which is preferably a hydraulically setting material. The materials of the casting mold are preferably dissolved with the aid of an aqueous solution, and in particular with the aid of a heated aqueous solution.

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