Silicone compositions for producing elastomeric molded parts by means of ballistic methods
US-2018066115-A1 · Mar 8, 2018 · US
Transparent 3d printed siloxane elastomers
US2022119657A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022119657-A1 |
| Application number | US-202017075549-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 20, 2020 |
| Priority date | Oct 20, 2020 |
| Publication date | Apr 21, 2022 |
| Grant date | — |
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Abstract
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An ink includes a siloxane polymer having at least 13 mol. % diphenylsiloxane content relative to the total mol. % of the siloxane polymer, and a filler having a refractive index about matching a refractive index of the siloxane polymer where the refractive indices are within about 5% of one another but are ideally as closely matched as possible.
First claim
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What is claimed is: 1 . An ink, comprising: a siloxane polymer having at least 13 mol. % diphenylsiloxane content relative to the total mol. % of the siloxane polymer; and a filler having a refractive index about matching a refractive index of the siloxane polymer where the refractive indices are within about 5% of one another but are ideally as closely matched as possible. 2 . The ink as recited in claim 1 , wherein the siloxane polymer has at least 14 mol. % diphenyl content. 3 . The ink as recited in claim 1 , wherein the siloxane polymer is a copolymer having dimethylsiloxane content. 4 . The ink as recited in claim 1 , wherein the filler includes fumed silica. 5 . The ink as recited in claim 1 , wherein the filler is present in the ink at about 5 wt. % to about 50 wt. % relative to the total weight of the ink. 6 . The ink as recited in claim 1 , further comprising a branched siloxane resin. 7 . The ink as recited in claim 1 , further comprising a crosslinking catalyst. 8 . The ink as recited in claim 1 , further comprising a rheology modifying additive. 9 . The ink as recited in claim 1 , wherein the ink is characterized as being transparent after curing. 10 . The ink as recited in claim 1 , wherein the siloxane polymer has a viscosity in a range of about 100 centistokes to about 50,000 centistokes. 11 . A product, comprising: a transparent three-dimensional (3D) structure having physical characteristics of formation by additive manufacturing, wherein the structure includes a siloxane polymer having at least 13 mol. % diphenylsiloxane content relative to the total mol. % of the siloxane polymer, and a filler having a refractive index about matching a refractive index of the siloxane polymer. 12 . The product as recited in claim 11 , wherein the siloxane polymer has at least 14 mol. % diphenyl content. 13 . The product as recited in claim 11 , wherein the siloxane polymer is a copolymer having dimethylsiloxane content. 14 . The product as recited in claim 11 , wherein the 3D structure is part of a microfluidic system. 15 . The product as recited in claim 11 , wherein the 3D structure includes an elastomeric lens. 16 . A method, comprising: extruding an ink for forming a three-dimensional (3D) structure, the ink comprising: a siloxane polymer having at least 13 mol. % diphenylsiloxane content relative to the total mol. % of the siloxane polymer, and a filler having a refractive index about matching a refractive index of the siloxane polymer where the refraction indices are within about 5% of one another, but are ideally as closely matched as possible, the filler being present in the ink at about 5 wt. % to about 50 wt. %; and curing the 3D structure for forming a transparent product. 17 . The method as recited in claim 16 , wherein the siloxane polymer has at least 14 mol. % diphenyl content. 18 . The method as recited in claim 16 , wherein the siloxane polymer is a copolymer having dimethylsiloxane content. 19 . The method as recited in claim 16 , wherein the ink is extruded by a direct ink writing device. 20 . The method as recited in claim 16 , wherein the curing is selected from the group of techniques consisting of: thermal curing, ultraviolet curing, peroxide curing, and moisture curing.
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- What does patent US2022119657A1 cover?
- An ink includes a siloxane polymer having at least 13 mol. % diphenylsiloxane content relative to the total mol. % of the siloxane polymer, and a filler having a refractive index about matching a refractive index of the siloxane polymer where the refractive indices are within about 5% of one another but are ideally as closely matched as possible.
- Who is the assignee on this patent?
- L Livermore Nat Security Llc
- What technology area does this patent fall under?
- Primary CPC classification C09D11/102. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Apr 21 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).