Aggregation-Induced Emission Polymer, Preparation Method and Application Thereof
US-2023151270-A1 · May 18, 2023 · US
Spatio-temporal monitoring of photopolymerization progression and related mechanisms
US12447688B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12447688-B2 |
| Application number | US-202318525272-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 30, 2023 |
| Priority date | Nov 30, 2023 |
| Publication date | Oct 21, 2025 |
| Grant date | Oct 21, 2025 |
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Abstract
Official abstract text for this publication.
In one general embodiment, a method includes, during performance of an additive manufacturing process that includes photocuring of a resin, monitoring light output generated by a fluorophore in the resin that exhibits aggregation-induced emission (AIE) behavior. An indication of an extent of photocuring is output based on the monitored light output. In another general embodiment, a resin for additive manufacturing includes molecules configured for photopolymerization and/or photocuring, the molecules being selected from the group consisting of monomers, oligomers, and polymers; a photoinitiator; and a fluorophore that exhibits aggregation-induced emission (AIE) behavior. The fluorophore is present in an amount of at least 0.00005 wt % relative to a total weight of the resin. In yet another general embodiment, a three-dimensional encrypted structure includes a fluorophore that exhibits aggregation-induced emission (AIE) behavior. The structure has information encoded therein via the fluorophore, the information being viewable by illuminating the fluorophore with fluorescent light.
First claim
Opening claim text (preview).
What is claimed is: 1. A three-dimensional encrypted structure, comprising: a structure comprising a fluorophore that exhibits aggregation-induced emission (AIE) behavior, the structure having information encoded therein via the fluorophore, the information being viewable by illuminating the fluorophore with fluorescent light. 2. The structure of claim 1 , wherein a molecular characteristic of the structure varies according to encoding of the information such that the AIE behavior of the fluorophore is different in different portions of the structure. 3. The structure of claim 1 , wherein the information is encoded in an internal layer of the structure, wherein the information is viewable upon focused illumination of the internal layer with the fluorescent light, wherein the information is not viewable upon illumination of the entire structure with the fluorescent light. 4. The structure of claim 1 , wherein the entire structure has about a same concentration of the fluorophore throughout.
Assignees
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Classifications
for controlling or regulating additive manufacturing processes · CPC title
Processes of additive manufacturing · CPC title
Materials specially adapted for additive manufacturing · CPC title
- B29C64/393Primary
for controlling or regulating additive manufacturing processes · CPC title
- B29C64/124Primary
using layers of liquid which are selectively solidified · CPC title
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- What does patent US12447688B2 cover?
- In one general embodiment, a method includes, during performance of an additive manufacturing process that includes photocuring of a resin, monitoring light output generated by a fluorophore in the resin that exhibits aggregation-induced emission (AIE) behavior. An indication of an extent of photocuring is output based on the monitored light output. In another general embodiment, a resin for ad…
- Who is the assignee on this patent?
- L Livermore Nat Security Llc
- What technology area does this patent fall under?
- Primary CPC classification B29C64/393. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 21 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).