Compositions and methods for use in three dimensional model printing

• US 9,334,402 B2
• Filed: 11/11/2014
• Issued: 05/10/2016
• Est. Priority Date: 03/13/2000
• Status: Expired due to Term

• Current Assignee: Stratasys Incorporated
• Original Assignee: Stratasys Incorporated
• Inventors: Napadensky, Eduardo
• Primary Examiner(s): Nutter, Nathan M
• Application Number:
  US14/538,492
• Publication Number:
  US 20150129798A1
• Time in Patent Office: 546 Days
• US Class Current: 1/1
• CPC Class Codes: B29C 64/112 using individual droplets, e.g. from jetting heads
• CPC Class Codes: B29C 64/40 Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
• CPC Class Codes: B33Y 70/00 Materials specially adapted for additive manufacturing
• CPC Class Codes: B33Y 70/10 Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
• CPC Class Codes: B41M 3/006 Patterns of chemical products used for a specific purpose, e.g. pesticides, perfumes, adhesive patterns; use of microencapsulated material; Printing on smoking articles
• CPC Class Codes: C08F 22/10 Esters
• CPC Class Codes: C08L 33/08 Homopolymers or copolymers of acrylic acid esters
• CPC Class Codes: C08L 35/02 Homopolymers or copolymers of esters C08L35/06, C08L35/08 take precedence
• CPC Class Codes: C08L 71/00 Compositions of polyethers obtained by reactions forming an ether link in the main chain of polyacetals C08L59/00; of epoxy resins C08L63/00; of polythioether-ethers C08L81/02; of polyether-sulfones C08L81/06; Compositions of derivatives of such polymers
• CPC Class Codes: G03F 7/0037 Production of three-dimensional images
• CPC Class Codes: Y10T 428/31554 Next to second layer of polyamidoester

Abstract

A method for printing three dimensional objects and support compositions are disclosed. The composition includes at least one curable component and at least one non-curable component, the non-curable component being a polyol, a glycol or water, wherein none of said non-curable components is reactive with any of said curable components. The composition has a first viscosity of 20-500 cps at ambient temperature and a second viscosity of less than 20 cps at temperature higher than the ambient temperature. The composition results in a solid, a semi solid or a gel type material after radiation.

Claims

1. A composition suitable for support in building a three dimensional object, the composition comprising:

at least one curable component,

at least one non-curable component, the non-curable component being a polyol or a glycol wherein none of said non-curable components is reactive with any of said curable components;

wherein said composition has a first viscosity of 20-500 cps at ambient temperature, and a second viscosity of less than 20 cps at temperature higher than the ambient temperature;

wherein, after irradiation, the composition results in a solid, a semi solid or a gel material.

2. The composition of claim 1, wherein after irradiation, the composition results in a material, which is at least partially soluble in water.

3. The composition of claim 1, wherein after irradiation, the composition results in a material capable of swelling in water, alkaline water, acidic water or water detergent solution.

4. The composition of claim 1, wherein the non-curable component is a glycol.

5. The composition of claim 1, wherein said curable component is a water-miscible or water-soluble component.

6. The composition of claim 5, wherein said curable component is an acrylic monomer, an acrylic oligomer, (meth)acrylic or any combination thereof.

7. The composition of claim 5, wherein said curable component is polyethylene glycol monoacrylate, polyethylene glycol diacrylate, methoxypolyethylene glycol monomethacrylate, a (meth)acrylated urethane oligomer derivative of polyethylene glycol, polyethylene glycol urethane diacrylate, a partially (meth)acrylated polyol oligomer, a (meth)acrylated oligomer having hydrophilic substituents, betha-carboxyethyl acrylate, acrylamide, acryloylmorpholine (ACMO) or any combination thereof.

8. The composition according to claim 7, wherein the hydrophilic substituents of the (meth)acrylated oligomer are acidic substituents, amino substituents, hydroxy substituents, or any combination thereof.

9. The composition according to claim 1, further comprising an inhibitor.

10. The composition according to claim 1, further comprising a free radical photo-initiator.

11. The composition according to claim 1, further comprising a cationic photo-initiator or a combination of a free radical photo-initiator and a cationic photo-initiator.

12. The composition according to claim 1, further comprising a pigment, a dye or a combination thereof.

13. The composition according to claim 1, further comprising sodium bicarbonate, calcium carbonate or a combination thereof.

14. The composition according to claim 1, further comprising a filler.

15. The composition according to claim 1, wherein the temperature higher than the ambient temperature is higher than 40°

C.