Thixotropic polysiloxane pastes for additive manufacturing
Abstract
Shelf-stable, rapid crosslinking, “all-in-one” pastes useful as “inks” in additive manufacturing are provided. These pastes exhibit desirable rheological flow properties and crosslinking upon exposure to UV light. The pastes are based on vinylsilyl-functionalized, completely amorphous, linear terpolysiloxanes containing predominantly dimethylsiloxy-repeat units with small amounts of diphenylsiloxy-, methylphenylsiloxy-, diethylsiloxy-, and/or methyltrifluoroalkylsiloxy-crystallization disruptors. The base polymers are preferably compounded with a trimethylsilylated-hydrophobic silica filler, thixotropic flow agent, hydrosilyl-functionalized oligomeric crosslinker, and a catalytic system comprising platinum(II) acetylacetonate or trimethyl(methylcyclopentadienyl)-platinum(IV), and diethyl azodicarboxylate.
- Inventors:
- Issue Date:
- Research Org.:
- Kansas City Plant (KCP), Kansas City, MO (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1986865
- Patent Number(s):
- 11512201
- Application Number:
- 17/317,486
- Assignee:
- Honeywell Federal Manufacturing & Technologies, LLC (Kansas City, MO)
- DOE Contract Number:
- NA0002839
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 05/11/2021
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Messman, Jamie Michael, Patterson, Steven Michael, Dvornic, Petar, Zlatanic, Alisa, and Beach, James. Thixotropic polysiloxane pastes for additive manufacturing. United States: N. p., 2022.
Web.
Messman, Jamie Michael, Patterson, Steven Michael, Dvornic, Petar, Zlatanic, Alisa, & Beach, James. Thixotropic polysiloxane pastes for additive manufacturing. United States.
Messman, Jamie Michael, Patterson, Steven Michael, Dvornic, Petar, Zlatanic, Alisa, and Beach, James. Tue .
"Thixotropic polysiloxane pastes for additive manufacturing". United States. https://www.osti.gov/servlets/purl/1986865.
@article{osti_1986865,
title = {Thixotropic polysiloxane pastes for additive manufacturing},
author = {Messman, Jamie Michael and Patterson, Steven Michael and Dvornic, Petar and Zlatanic, Alisa and Beach, James},
abstractNote = {Shelf-stable, rapid crosslinking, “all-in-one” pastes useful as “inks” in additive manufacturing are provided. These pastes exhibit desirable rheological flow properties and crosslinking upon exposure to UV light. The pastes are based on vinylsilyl-functionalized, completely amorphous, linear terpolysiloxanes containing predominantly dimethylsiloxy-repeat units with small amounts of diphenylsiloxy-, methylphenylsiloxy-, diethylsiloxy-, and/or methyltrifluoroalkylsiloxy-crystallization disruptors. The base polymers are preferably compounded with a trimethylsilylated-hydrophobic silica filler, thixotropic flow agent, hydrosilyl-functionalized oligomeric crosslinker, and a catalytic system comprising platinum(II) acetylacetonate or trimethyl(methylcyclopentadienyl)-platinum(IV), and diethyl azodicarboxylate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {11}
}
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Works referenced in this record:
“ All-in-One ” Thixotropic Polysiloxane Pastes for UV-Activated Room Temperature Hydrosilylation Cross-Linking in Additive Manufacturing
journal, February 2021
- Beach, James; Mann, Shane; Ault, Charles
- Macromolecules, Vol. 54, Issue 4
3D‐Printed Silicone Materials with Hydrogen Getter Capability
journal, March 2018
- Ortiz‐Acosta, Denisse; Moore, Tanya; Safarik, Douglas J.
- Advanced Functional Materials, Vol. 28, Issue 17
Suppression of Crystallization in Polydimethylsiloxanes and Chain Branching in Their Phenyl-Containing Copolymers
journal, April 2017
- Zlatanic, Alisa; Radojcic, Dragana; Wan, Xianmei
- Macromolecules, Vol. 50, Issue 9
Ultraviolet-ray-curable organopolysiloxane composition, and method for producing printing material
patent, July 2017
- Mayumi, Yuka; Ikeno, Masayuki
- US Patent Document 9,714,344
Inhibited precious metal catalyzed organopolysiloxane compositions
patent, June 1987
- Eckberg, Richard P.
- US Patent Document 4,670,531
Silicone Compositions for the Three-Dimensional Printing
patent-application, August 2019
- Velev, Orlin D.; Roh, Sangchul
- US Patent Application 16/317073; 20190264046
Three Dimensional Porous Siloxanes Using Leachable Porogen Particles
patent-application, October 2020
- Perez, Lemuel Perez; Duoss, Eric B.; Lenhardt, Jeremy
- US Patent Application 16/368725; 20200308428
Completely non-halogenated flame retardant polycarbonate compounds
patent, October 2018
- Zhou, Chongfu; Avakian, Roger W.
- US Patent Document 10,100,192
3D printing method utilizing a photocurable silicone composition
patent, December 2018
- Kenney, James Andrew; Zhu, Bizhong
- US Patent Document 10,155,884
Custom 3D Printable Silicones with Tunable Stiffness
journal, December 2017
- Durban, Matthew M.; Lenhardt, Jeremy M.; Wu, Amanda S.
- Macromolecular Rapid Communications, Vol. 39, Issue 4