Material system for use in three dimensional printing
First Claim
1. A two or more component material system for use in 3D-printing comprising:
- a first component comprising a liquid solvent,a second component separate from said first component and comprising dry particles comprising binder soluble in the solvent, andoptionally, filler materials in the form of particles as a third component or in said first or second component,wherein the material system further contains two complementary polyelectrolytes and/or an initiator for a crosslinking reaction of the binder, andwherein the two complementary polyelectrolytes are contained separately in(i) two binders, respectively, or(ii) in a binder and in the solvent.
2 Assignments
0 Petitions
Accused Products
Abstract
A material system for use in a 3D-printing, which exhibits a higher form stability. The material system contains binder and solvent as well as optional filler materials. The binder is soluble in the solvent, as well as two complementary polyelectrolytes, and/or an initiator for a cross linking reaction of the binder. The advantage of such a mixed material system is comprised in the essentially higher binder force between the individual particles. This enhanced binder force results either from the acid-base linkages, which form between the complementary polyelectrolytes, or from the supplemental networking initiated by the initiators, or from both. Substantially higher binding forces between the individual particles means at the same time a substantially higher shape stability of the 3D-printing product.
72 Citations
14 Claims
-
1. A two or more component material system for use in 3D-printing comprising:
-
a first component comprising a liquid solvent, a second component separate from said first component and comprising dry particles comprising binder soluble in the solvent, and optionally, filler materials in the form of particles as a third component or in said first or second component, wherein the material system further contains two complementary polyelectrolytes and/or an initiator for a crosslinking reaction of the binder, and wherein the two complementary polyelectrolytes are contained separately in (i) two binders, respectively, or (ii) in a binder and in the solvent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11, 12)
-
-
9. A two or more component material system for use in 3D-printing comprising:
-
a first component comprising a solvent, a second component comprising binder particles soluble in the solvent, and optionally, filler materials in the form of particles as a third component or in said first or second component, wherein the material system contains two complementary polyelectrolytes and/or an initiator for a crosslinking reaction of the binder, and wherein the filler material is comprised of wax, PS, PMMA or POM.
-
-
13. A two or more component material system for use in 3D-printing comprising:
-
a first component comprising a liquid solvent, a second component separate from said first component and comprising dry particles comprising binder soluble in the solvent, and optionally, filler materials in the form of particles as a third component or in said first or second component, wherein the material system further contains two complementary polyelectrolytes and/or an initiator for a crosslinking reaction of the binder, and wherein the binder comprises less than 10 weight percent of the material system.
-
-
14. A process for producing a three dimensional shape, the process comprising:
-
(a) providing a layer of solvent-soluble dry particles comprising binder and, optionally, filler materials, (b) printing said layer with a liquid solvent in a pattern to activate said binder, (c) repeating steps (a) and (b) until said three-dimensional shape is formed, wherein the material system comprised of binder, solvent and optionally filler materials contains two complementary polyelectrolytes and/or an initiator for a crosslinking reaction of the binder.
-
Specification