THERMOPLASTIC COMPOSITES COMPRISING WATER-SOLUBLE PEO GRAFT POLYMERS FOR USE AS A SACRIFICIAL SUPPORT IN 3D ADDITIVE MANUFACTURING
원문보기
IPC분류정보
국가/구분
United States(US) Patent
공개
국제특허분류(IPC7판)
B29C-064/40
B33Y-070/00
C08J-005/04
C08K-003/22
C08K-005/06
출원번호
17406818
(2021-08-19)
공개번호
20210379837
(2021-12-09)
발명자
/ 주소
Stolyarov, Daniel
Pomestchenko, Irina
출원인 / 주소
G6 Materials Corp.
인용정보
피인용 횟수 :
0인용 특허 :
0
초록▼
A method for preparing a sacrificial support material for use in printing a three-dimensional (3D) article includes providing a water-soluble thermoplastic polymer composite including a water-soluble thermoplastic polyethylene oxide graft polymer having a polyethylene oxide polymer backbone, and fro
A method for preparing a sacrificial support material for use in printing a three-dimensional (3D) article includes providing a water-soluble thermoplastic polymer composite including a water-soluble thermoplastic polyethylene oxide graft polymer having a polyethylene oxide polymer backbone, and from about 0.05% to about 10% by weight of the polyethylene oxide polymer backbone of at least one polar vinyl monomer grafted to the polyethylene oxide polymer backbone. One or more nanoscopic particulate processing aids may be uniformly dispersed in the graft polymer in an amount of from about 0.05% to about 10% by weight of the water-soluble thermoplastic polymer composite. The water-soluble thermoplastic polymer composite may have a viscosity in the range of about 100 to about 10,000 Pa-sec. The method may also include forming the water-soluble thermoplastic polymer composite into the 3D printable sacrificial support material.
대표청구항▼
1. A method for preparing a sacrificial support material for use in printing a three-dimensional (3D) article, the method comprising: providing a water-soluble thermoplastic polymer composite comprising: a water-soluble thermoplastic polyethylene oxide graft polymer having: a polyethylene oxide poly
1. A method for preparing a sacrificial support material for use in printing a three-dimensional (3D) article, the method comprising: providing a water-soluble thermoplastic polymer composite comprising: a water-soluble thermoplastic polyethylene oxide graft polymer having: a polyethylene oxide polymer backbone; andfrom about 0.05% to about 10% by weight of the polyethylene oxide polymer backbone of at least one polar vinyl monomer grafted to the polyethylene oxide polymer backbone; andone or more nanoscopic particulate processing aids uniformly dispersed in the graft polymer in an amount of from about 0.05 to about 10% by weight of the water-soluble thermoplastic polymer composite;wherein the water-soluble thermoplastic polymer composite has a viscosity in the range of about 100 to about 10,000 Pa-sec. when measured at a shear rate in the range of about 1×101 to about 1×104 reciprocal seconds; andforming the water-soluble thermoplastic polymer composite into the 3D printable sacrificial support material;wherein water-soluble is defined as at least one of a composite, composition, substance, and material that is soluble in that it melts, liquefies, dissolves, disintegrates, falls apart, or solubilizes when brought into contact with an aqueous fluid. 2. The method of claim 1, wherein the 3D printable sacrificial support material is in the form of a filament, film, powder, or pellet. 3. The method of claim 1, wherein the 3D printable sacrificial support material comprises a filament for a fused filament fabrication (FFF) technique. 4. The method of claim 1, wherein the 3D printable sacrificial support material comprises a powder or pellet for a selective laser sintering (SLS) technique. 5. The method of claim 1, wherein the 3D printable sacrificial support material is for an inkjet 3D printing technique. 6. The method of claim 1, wherein the 3D printable sacrificial support material is for an injection molding 3D printing technique. 7. The method of claim 1, wherein the one or more nanoscopic particulate processing aids are one or more of: titanium dioxide nanopowder; alumina nanopowder; silica nanopowder; fumed silica; zirconia nanopowder; vanadia nanopowder; antimony oxide nanopowder; tin oxide nanopowder; ceria nanopowder; or zinc oxide nanopowder. 8. The method of claim 1, wherein the one or more nanoscopic particulate processing aids comprise titanium dioxide nanopowder. 9. The method of claim 1, wherein the water-soluble thermoplastic polymer composite of step (a) further comprises one or more plasticizers in an amount of from about 0.1 to about 10% by weight of the water-soluble thermoplastic polymer composite. 10. A method for preparing a sacrificial support material for use in printing a three-dimensional (3D) article, the method comprising: providing a water-soluble thermoplastic polymer composite comprising: a water-soluble thermoplastic polyethylene oxide graft polymer having: a polyethylene oxide polymer backbone; andfrom about 0.05% to about 10% by weight of the polyethylene oxide polymer backbone of at least one polar vinyl monomer grafted to the polyethylene oxide polymer backbone;one or more structural reinforcement materials uniformly dispersed in the water-soluble thermoplastic polymer composite in an amount of from about 0.1 to about 20% by weight of the water-soluble thermoplastic polymer composite; andone or more plasticizers uniformly dispersed in the water-soluble thermoplastic polymer composite in an amount of from about 0.1% to about 15% by weight of the water-soluble thermoplastic polymer composite;wherein the water-soluble thermoplastic polymer composite has a viscosity in the range of from about 100 to about 10,000 Pa-sec. when measured at a shear rate in the range of from about 1×101 to about 1×104 reciprocal seconds; andforming the water-soluble thermoplastic polymer composite into the 3D printable sacrificial support material;wherein water-soluble is defined as at least one of a composite, composition, substance, and material that is soluble in that it melts, liquefies, dissolves, disintegrates, falls apart, or solubilizes when brought into contact with an aqueous fluid. 11. The method of claim 10, wherein the 3D printable sacrificial support material is in the form of a filament, film, powder, or pellet. 12. The method of claim 10, wherein the 3D printable sacrificial support material comprises a filament for a fused filament fabrication (FFF) technique. 13. The method of claim 10, wherein the 3D printable sacrificial support material comprises a powder or pellet for a selective laser sintering (SLS) technique. 14. The method of claim 10, wherein the 3D printable sacrificial support material is for an inkjet 3D printing technique. 15. The method of claim 10, wherein 3D printable sacrificial support material is for an injection molding 3D printing technique. 16. The method of claim 10, wherein the one or more structural reinforcement materials comprise at least one of carbon fibers, carbon nanotubes, glass fibers, metal or metal oxide fibers, talc, chalk, boron nitride, magnesium hydroxide, magnesium carbonate, diatomaceous earth, mica, glass quartz, ceramic and/or glass microbeads or spheres, graphene, graphene nanoplatelets, graphene oxide, reduced graphene oxide, graphite, carbon black, and other graphene materials. 17. A 3D printable sacrificial support material for use in printing a 3D article, the 3D printable sacrificial support material comprising: a water-soluble thermoplastic polymer composite comprising: a water-soluble thermoplastic polyethylene oxide graft polymer having: a polyethylene oxide polymer backbone; andfrom about 0.05% to about 10% by weight of the polyethylene oxide polymer backbone of at least one polar vinyl monomer grafted to the polyethylene oxide polymer backbone; andone or more nanoscopic particulate processing aids uniformly dispersed in the graft polymer in an amount of from about 0.05% to about 10% by weight of the water-soluble thermoplastic polymer composite;wherein the water-soluble thermoplastic polymer composite has a viscosity in the range of about 100 to about 10,000 Pa-sec. when measured at a shear rate in the range of about 1×101 to about 1×104 reciprocal seconds; andwherein water-soluble is defined as at least one of a composite, composition, substance, and material that is soluble in that it melts, liquefies, dissolves, disintegrates, falls apart, or solubilizes when brought into contact with an aqueous fluid. 18. The 3D printable sacrificial support material of claim 17, wherein the 3D printable sacrificial support material is in the form of a filament, film, powder, or pellet. 19. The 3D printable sacrificial support material of claim 17, wherein the one or more nanoscopic particulate processing aids are one or more of: titanium dioxide nanopowder; alumina nanopowder; silica nanopowder; fumed silica; zirconia nanopowder; vanadia nanopowder; antimony oxide nanopowder; tin oxide nanopowder; ceria nanopowder; or zinc oxide nanopowder. 20. The 3D printable sacrificial support material of claim 17, wherein the water-soluble thermoplastic polymer composite further comprises one or more plasticizers in an amount of from about 0.1 to about 10% by weight of the water-soluble thermoplastic polymer composite.
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