Title: Silicone formulations for 3D printing

Abstract

In one embodiment, a silicone-based ink for additive manufacturing includes a vinyl-terminated siloxane macromer, a hydrophobic reinforcing filler, and a rheology modifying additive. In another embodiment, a method of additive manufacturing with silicone-based ink includes adding a mixture that includes a vinyl-terminated siloxane macromer, a hydrophobic reinforcing filler, and a rheology modifying additive to a cartridge for additive manufacturing, extruding the mixture through the cartridge to form a structure, and curing the mixture to at least a predefined extent.

Inventors:

Durban, Matt; Duoss, Eric; Lenhardt, Jeremy; Wilson, Thomas S.

Issue Date:

2020-06-23

Research Org.:

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1651045

Patent Number(s):

10689491

Application Number:

15/721,528

Assignee:

Lawrence Livermore National Security, LLC (Livermore, CA)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS

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B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS

B29C64/106 - using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
B29C64/112 - using individual droplets, e.g. from jetting heads

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS

B29K2083/00 - Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material

B - PERFORMING OPERATIONS 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
B33Y70/00 - Materials specially adapted for additive manufacturing

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07F - ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM

C07F7/0879 - {Hydrosilylation reactions}

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

C08G77/12 - containing silicon bound to hydrogen {
C08G77/20 - containing silicon bound to unsaturated aliphatic groups {
C08G77/442 - containing vinyl polymer sequences
C08G81/024 - {Block or graft polymers containing sequences of polymers of C08C or C08F and of polymers of C08G}

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients

C08K3/11 - Compounds containing metals of Groups 4 to 10 or Groups 14 to 16 of the Periodic system
C08K3/36 - Silica
C08K5/0025 - {Crosslinking or vulcanising agents
C08K5/5425 - containing at least one C=C bond
C08K5/56 - Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond
C08K9/06 - with silicon-containing compounds

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS

C08L83/00 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only

C - CHEMISTRY C09 - DYES C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS

C09D11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
C09D11/102 - containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
C09D183/04 - Polysiloxanes

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

G01N25/4866 - {by using a differential method}

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DOE Contract Number:  

AC52-07NA27344

Resource Type:

Patent

Resource Relation:

Patent File Date: 09/29/2017

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE