Coreactive materials and methods for three-dimensional printing

Patent metadata

Field	Value
Publication number	US-10253195-B2
Application number	US-201515528205-A
Country	US
Kind code	B2
Filing date	Nov 24, 2015
Priority date	Nov 24, 2014
Publication date	Apr 9, 2019
Grant date	Apr 9, 2019

Abstract

Methods of printing a three-dimensional object using co-reactive components are disclosed. Thermosetting compositions for three-dimensional printing are also disclosed.

First claim

What is claimed is:

1. A composition for three-dimensional printing, comprising:
a first component comprising a first functional group; and
a second component comprising a second functional group,
wherein the second functional group is reactive with the first functional group;
wherein at least one of the first functional group and the second functional group comprises a saturated functional group; and
wherein the composition is characterized by a shear storage modulus G′ and a shear loss modulus G″, wherein,
the initial G″/G′ ratio is less than 2;
the initial G′ is greater than 1,500;
the G′ at 6 minutes is greater than 500,000 Pa; and
the G″ at 6 minutes is greater than 400,000 Pa; wherein,
the initial G″/G′ ratio and the initial G′ refer to values measured within 30 seconds after the first component and the second component are mixed;
the G′ and G″ after 6 minutes refers to the values measured 6 minutes after the first component and the second component are mixed; and
the shear storage modulus G′ and the shear loss modulus G″ are measured using a rheometer with a gap from 1 mil to 2 mils, with a 25 mm-diameter parallel plate spindle, an oscillation frequency of 1 Hz and amplitude of 0.3%, and with a rheometer plate temperature of 25° C.

2. A composition for three-dimensional printing, comprising:
a first component comprising a first functional group; and
a second component comprising a second functional group,
wherein the second functional group is reactive with the first functional group;
wherein at least one of the first functional group and the second functional group comprises a saturated functional group; and
wherein the composition is characterized by a shear storage modulus G′ and a shear loss modulus G″, wherein,
the initial G″/G′ ratio is less than 1.5;
the initial G′ is greater than 2,000 Pa;
the G′ at 6 minutes is greater than 1,000,000 Pa; and
the G″ at 6 minutes is greater than 600,000 Pa.; wherein,
the initial G″/G′ ratio and the initial G′ refer to values measured within 30 seconds after the first component and the second component are mixed;
the G′ and G″ after 6 minutes refers to the values measured 6 minutes after the first component and the second component are mixed; and
the shear storage modulus G′ and the shear loss modulus G″ are measured using a rheometer with a gap from 1 mil to 2 mils, with a 25 mm-diameter parallel plate spindle, an oscillation frequency of 1 Hz and amplitude of 0.3%, and with a rheometer plate temperature of 25° C.

3. A composition for three-dimensional printing, comprising:
a first component comprising a first functional group; and
a second component comprising a second functional group,
wherein the second functional group is reactive with the first functional group;
wherein at least one of the first functional group and the second functional group comprises a saturated functional group; and
wherein the composition is characterized by a viscosity from 5,000 cP to 5,000,000 cP, measured using a rheometer with a gap from 1 mm to 2 mm, a shear rate of 0.1 s −1 at a temperature of 25 C.

4. A composition for three-dimensional printing, comprising:
a first component comprising a first functional group; and
a second component comprising a second functional group,
wherein the second functional group is reactive with the first functional group;
wherein at least one of the first functional group and the second functional group comprises a saturated functional group; and
wherein the composition is characterized by a cross-sectional profile having a first portion and a second portion.

5. The composition of claim 4 , wherein,
the first portion comprises a molar ratio of the first component to the second component greater than 1; and
the second portion comprises a molar ratio of the first component to the second component less than 1.

6. The composition of claim 4 , wherein the first portion and the second portion are on opposite sides of the cross-sectional profile.

7. The composition of claim 4 , wherein,
the first portion comprises an equivalent ratio of the first functional group to the second functional group greater than 1; and
the second portion comprises an equivalent ratio of the first functional group to the second functional group less than 1.

8. The composition of claim 4 , wherein an equivalents ratio of the first component to the second component is not homogeneous throughout the cross-sectional profile.

9. The composition of claim 4 , wherein an equivalents ratio of the first component to the second component is homogeneous throughout the cross-sectional profile.

10. A composition for three-dimensional printing, comprising:
a first component comprising a first functional group; and
a second component comprising a second functional group,
wherein the second functional group is reactive with the first functional group;
wherein at least one of the first functional group and the second functional group comprises a saturated functional group; and
wherein each of the first functional group and the second functional group does not comprise an acrylate group or a methacrylate group.

11. A composition for three-dimensional printing, comprising:
a first component comprising a first functional group; and
a second component comprising a second functional group,
wherein the second functional group is reactive with the first functional group;
wherein at least one of the first functional group and the second functional group comprises a saturated functional group; and
wherein the composition comprises a catalyst, wherein the catalyst catalyzes the reaction between the first functional group and the second functional group.

12. A composition for three-dimensional printing, comprising:
a first component comprising a first functional group; and
a second component comprising a second functional group,
wherein the second functional group is reactive with the first functional group;
wherein at least one of the first functional group and the second functional group comprises a saturated functional group; and
wherein the composition is not curable using actinic radiation.

13. A composition comprising:
a first component comprising a first functional group; and
a second component comprising a second functional group,
wherein,
the first component comprises a polyamine and the second component comprises a polyisocyanate;
the first component comprises a polyalkenyl compound and the second component comprises a polythiol;
the first component comprises a Michael addition acceptor and the second component comprises a Michael addition donor; or
a combination of any of the foregoing;

wherein the composition is characterized by a shear storage modulus G′ and a shear loss modulus G″, wherein,
the initial G″/G′ ratio is less than 2;
the initial G′ is greater than 1,500 Pa;
the G′ at 6 minutes is greater than 500,000 Pa; and
the G″ at 6 minutes after mixing is greater than 400,000 Pa; wherein,
the shear storage modulus G′ and the shear loss modulus G″ are measured using a rheometer with a gap from 1 mil to 2 mils, with a 25 mm-diameter parallel plate spindle, an oscillation frequency of 1 Hz and amplitude of 0.3%, and with a rheometer plate temperature of 25° C.

14. The composition of claim 1 , wherein the saturated functional group comprises a hydroxyl, a thiol, a primary amine, a secondary amine, an epoxy, or a combination of any of the foregoing.

15. The composition of claim 1 , wherein,
the first component comprises a polyol and the second component comprises a polyisocyanate;
the first comp

Assignees

• Ppg Ind Ohio Inc

Inventors

• Fenn David R
• Olson Kurt G
• Rock Reza M
• Kutchko Cynthia
• Donaldson Susan F
• Sun Hao

Classifications

• B33Y80/00

  Products made by additive manufacturing · CPC title

• C08G18/792

  formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates · CPC title

• B29K2075/02

  Polyureas · CPC title

• C09D11/102 Primary

  containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds · CPC title

• C09D175/02

  Polyureas · CPC title