Additive manufacturing using stimuli-responsive high-performance polymers

Patent metadata

Field	Value
Publication number	US-10427353-B2
Application number	US-201715452533-A
Country	US
Kind code	B2
Filing date	Mar 7, 2017
Priority date	May 13, 2016
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

The present invention provides high performance polymer (HPP) compositions, methods, processes, and systems for the manufacture of three-dimensional articles made of polymers using molding or 3D printing. The HPP compositions comprise a first HPP dissolved in a solvent and a second HPP present as a solid having particular particle size.

First claim

We claim:

1. A method of manufacturing a three-dimensional article, the method comprising:
depositing a high-performance polymer (HPP) composition comprising:
a homogenous mixture of a first HPP dissolved in a solvent; and
a second HPP that is insoluble in the solvent;
exposing the HPP composition to a stimulus to form a polymer layer of the three-dimensional article; and
repeating the steps (a)-(b) to form remainder of the three-dimensional article;

wherein the solvent comprises spearmint oil, α-terpinene, limonene, α-pinene, fenchone, or combinations thereof.

2. The method of claim 1 , wherein the first HPP comprises a polyketone.

3. The method of claim 2 , wherein the polyketone comprises polyetheretherketone (PEEK), polyaryletherketone (PAEK), polyetherketone (PEK), polyetherketoneketone (PEKK) polyetheretheretherketone (PEEEK), polyetheretherketoneketone (PEEKK), polyetherketoneetheretherketone (PEKEKK), or polyetherketoneketoneketone (PEKKK).

4. The method of claim 1 , wherein the second HPP comprises polyimides, polyketones, reduced forms of polyketones, or polyethersulfones, and wherein the second HPP is not soluble in the solvent.

5. The method of claim 1 , wherein the stimulus comprises heat, light, oxidation, reduction, acid catalysis, base catalysis, transition metal catalysis, or combination thereof.

6. The method of claim 1 , further comprising the step of curing wherein curing is done by chemical curing or thermal curing.

7. A method for manufacturing a three-dimensional article, the method comprising:
depositing a powder of first HPP on a build plate to form a powder bed;
printing a solution comprising a homogeneous mixture of a second HPP dissolved in a solvent at selected locations on the powder bed;
exposing the printed solution to a stimulus to form a polymer layer of the three-dimensional article; and
repeating steps (a)-(c) to manufacture remainder of the three-dimensional article.

8. The method of claim 7 , wherein the first HPP comprises polyimides, polyketones, reduced forms of polyketones, or polyethersulfones, and wherein the first HPP is not soluble in the solvent.

9. The method of claim 7 , wherein the second HPP comprises a polyketone.

10. The method of claim 9 , wherein the polyketone comprises polyetheretherketone (PEEK), polyaryletherketone (PAEK), polyetherketone (PEK), polyetherketoneketone (PEKK) polyetheretheretherketone (PEEEK), polyetheretherketoneketone (PEEKK), polyetherketoneetheretherketone (PEKEKK), or polyetherketoneketoneketone (PEKKK).

11. The method of claim 7 , wherein the solvent has a low vapor pressure and is food-safe.

12. The method of claim 11 , wherein the solvent comprises spearmint oil, α-terpinene, limonene, α-pinene, fenchone, or combinations thereof.

13. The method of claim 7 , wherein the stimulus comprises heat, light, oxidation, reduction, acid catalysis, base catalysis, transition metal catalysis, or combination thereof.

14. The method of claim 7 , further comprising the step of curing wherein curing is done by chemical curing or thermal curing.

15. A three-dimensional article made by the process of:
depositing a high-performance polymer (HPP) composition comprising:
a homogeneous mixture of a first HPP dissolved in a solvent; and
a second HPP that is insoluble in the solvent;
exposing the HPP composition to a stimulus to form a polymer layer of the three-dimensional article;
repeating the steps (a)-(b) to form remainder of the three-dimensional article; and
curing the article for less than about 1 minute;

wherein the solvent comprises spearmint oil, α-terpinene, limonene, α-pinene, fenchone, or combinations thereof.

16. The method of claim 15 , wherein the first HPP comprises a polyketone, wherein the polyketone comprises polyetheretherketone (PEEK), polyaryletherketone (PAEK), polyetherketone (PEK), polyetherketoneketone (PEKK) polyetheretheretherketone (PEEEK), polyetheretherketoneketone (PEEKK), polyetherketoneetheretherketone (PEKEKK), or polyetherketoneketoneketone (PEKKK), wherein the second HPP comprises polyimides, polyketones, reduced forms of polyketones, or polyethersulfones, and wherein the second HPP is not soluble in the solvent.

17. The method of claim 15 , wherein the stimulus comprises heat, light, oxidation, reduction, acid catalysis, base catalysis, transition metal catalysis, or combination thereof.

Assignees

• Lee Chang Uk
• Goetz Adam Edward
• Ashikari Yosuke
• Boydston Andrew Jackson
• Ganter Mark A
• Storti Duane William
• Ricoh Co Ltd
• Univ Washington

Inventors

• Lee Chang-Uk
• Goetz Adam Edward
• Ashikari Yosuke
• Boydston Andrew Jackson
• Ganter Mark A
• Storti Duane William

Classifications

• B29K2105/0014

  Catalysts · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title

• B29K2071/00

  Use of polyethers {, e.g. PEEK, i.e. polyether-etherketone or PEK, i.e. polyetherketone or derivatives thereof}, as moulding material · CPC title

• B29C64/165 Primary

  using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber · CPC title