Method of three-dimensional printing

Patent metadata

Field	Value
Publication number	US-9771487-B2
Application number	US-201414537215-A
Country	US
Kind code	B2
Filing date	Nov 10, 2014
Priority date	Nov 10, 2014
Publication date	Sep 26, 2017
Grant date	Sep 26, 2017

Abstract

A sustainable material suitable for three-dimensional printing is disclosed. The sustainable material comprises a resin derived from a bio-based diacid monomer and a bio-based glycol monomer. The resulting sustainable material provides a much more robust 3-D printing material with different properties than conventional materials.

First claim

What is claimed is:

1. A method of printing comprising
providing a thermoplastic filament, wherein the thermoplastic filament further comprises
a sustainable resin derived from a bio-based diacid monomer and bio-based glycol monomer, wherein when the sustainable resin is polybutylene succinate, the weight average molecular weight of the sustainable resin is from about 10,000 grams/mole to about 500,000 grams/mole; further wherein the polybutylene succinate is produced through the reaction of bio-based succinic acid and 1,4-butane-diol as shown by the reaction scheme below:

wherein n is from about 100 to about 100,000;
a colorant, and
an optional additive;
heating the thermoplastic filament to its melting point;
extruding the melted thermoplastic filament layer by layer; and
forming a three-dimensional object from the layers of melted thermoplastic filament.

2. The method of claim 1 , wherein the heating step is conducted at a temperature of from about 160 to about 260° C.

3. The method of claim 1 , wherein the sustainable resin is derived from about 48 to about 52 percent by mole equivalent of bio-based diacid monomer, and from about 48 to about 52 percent by mole equivalent of the bio-based glycol monomer, provided that the sum of both is 100 percent.

4. The method of claim 1 further comprising cooling and solidifying the formed three-dimensional object.

5. The method of claim 1 , wherein the three-dimensional printing material having a Young's Modulus of from about 0.5 to about 5 gigapascals.

6. The method of claim 1 , wherein the three-dimensional printing material having a Yield Stress of from about 10 to about 100 megapascals.

Assignees

• Xerox Corp

Inventors

• Sacripante Guerino G
• Zhou Ke

Classifications

• B29C64/118

  using filamentary material being melted, e.g. fused deposition modelling [FDM] · CPC title

• B29C48/911

  Cooling · CPC title

• B29C2948/92704

  Temperature · CPC title

• B29C48/05 Primary

  Filamentary, e.g. strands · CPC title

• C09D11/104 Primary

  Polyesters · CPC title