WO2023178026A3 - Microwave-activated thermal curing for preparing a polymer composite containing dispersed inorganic particles - Google Patents

Microwave-activated thermal curing for preparing a polymer composite containing dispersed inorganic particles Download PDF

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Publication number
WO2023178026A3
WO2023178026A3 PCT/US2023/064216 US2023064216W WO2023178026A3 WO 2023178026 A3 WO2023178026 A3 WO 2023178026A3 US 2023064216 W US2023064216 W US 2023064216W WO 2023178026 A3 WO2023178026 A3 WO 2023178026A3
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WIPO (PCT)
Prior art keywords
microwave
polymer composite
inorganic particles
thermal curing
preparing
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PCT/US2023/064216
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French (fr)
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WO2023178026A2 (en
Inventor
Benito ROMAN-MANSO
Robert D. WEEKS
Jennifer A. Lewis
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President And Fellows Of Harvard College
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Publication of WO2023178026A2 publication Critical patent/WO2023178026A2/en
Publication of WO2023178026A3 publication Critical patent/WO2023178026A3/en

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C08J3/07—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from polymer solutions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • B33Y40/20—Post-treatment, e.g. curing, coating or polishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
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Abstract

A method of microwave-assisted or microwave-activated thermal curing includes forming a colloidal suspension into a predetermined shape, where the colloidal suspension comprises an aqueous solution including water, a crosslinkable polymer dissolved in the water, and inorganic particles dispersed in the aqueous solution at a concentration of at least about 10 vol.%. The colloidal suspension is then exposed to microwave irradiation for about two minutes or less, such that the crosslinkable polymer undergoes thermal curing, and a polymer composite having the predetermined shape is formed. The polymer composite comprises a crosslinked polymer matrix with the inorganic particles dispersed therein. The polymer composite may serve as a precursor for a densified or sintered inorganic (e.g., ceramic) part.
PCT/US2023/064216 2022-03-15 2023-03-13 Microwave-activated thermal curing for preparing a polymer composite containing dispersed inorganic particles WO2023178026A2 (en)

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US202263319938P 2022-03-15 2022-03-15
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WO2023178026A2 (en) * 2022-03-15 2023-09-21 President And Fellows Of Harvard College Microwave-activated thermal curing for preparing a polymer composite containing dispersed inorganic particles

Citations (4)

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US4965131A (en) * 1988-03-21 1990-10-23 Eastman Kodak Company Colloidally stabilized suspension process
EP0947878A2 (en) * 1998-04-01 1999-10-06 Eastman Kodak Company Imaging element comprising an improved electrically conductive layer containing acicular metalcontaining particles
US20100096596A1 (en) * 2008-10-17 2010-04-22 Lewis Jennifer A Biphasic inks
WO2023178026A2 (en) * 2022-03-15 2023-09-21 President And Fellows Of Harvard College Microwave-activated thermal curing for preparing a polymer composite containing dispersed inorganic particles

Patent Citations (4)

* Cited by examiner, † Cited by third party
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