Catalytic upcycling of polymers
US-2021061971-A1 · Mar 4, 2021 · US
Catalytic upcycling of polyolefins into lubricants
US11499110B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11499110-B2 |
| Application number | US-202017018702-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 11, 2020 |
| Priority date | Sep 11, 2020 |
| Publication date | Nov 15, 2022 |
| Grant date | Nov 15, 2022 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A method of upcycling polymers to useful hydrocarbon materials. A catalyst with nanoparticles on a substrate selectively docks and cleaves longer hydrocarbon chains over shorter hydrocarbon chains. The nanoparticles exhibit an edge to facet ratio to provide for more interactions with the facets.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of producing a lubricant comprising: exposing, at a temperature of 150-350° C. and a pressure of 100-200 psi for 12— 72 hours, a plurality of polymer molecules to a catalyst comprising a substrate having a plurality of catalytic nanoparticles deposited thereon; docking a first polymer molecule of the plurality of polymer molecules to the catalyst; cleaving at least one carbon-carbon bond of the first polymer molecule; forming a plurality of hydrocarbon fragments from the cleaving; selectively docking to the catalyst a second polymer molecule of the plurality of polymer molecules, preferentially over the plurality of hydrocarbon fragments; cleaving at least one carbon-carbon bond of the second polymer molecule; and forming a second plurality of hydrocarbon fragments. 2. The method of claim 1 , wherein exposing the plurality of polymer molecules is for at least 24 hours. 3. The method of claim 1 , wherein the plurality of catalytic nanoparticles comprise Pt or Ni. 4. The method of claim 1 , wherein the substrate comprises a perovskite. 5. The method of claim 4 , wherein the substrate comprises strontium titanate. 6. The method of claim 3 , wherein the substrate comprises alumina. 7. The method of claim 1 , wherein the plurality of polymer molecules are solvent-free. 8. The method of claim 1 , wherein the plurality of polymer molecules have a molecular weight ranging from 400-1000 Da (number average molecular weight). 9. The method of claim 8 , wherein the plurality of hydrocarbon fragments are C 30 to C 76 alkanes. 10. The method of claim 9 , wherein the plurality of hydrocarbon fragments have 10 branches per 1000 carbon to 400 branches per 1000 carbon. 11. The method of claim 10 , wherein the plurality of hydrocarbon fragments are saturated hydrocarbons. 12. The method of claim 1 , wherein the first polymer molecule is polyethylene. 13. The method of claim 11 , wherein the first polymer is linear low-density polyethylene. 14. The method of claim 11 , wherein the first polymer is linear high-density polyethylene.
Assignees
Inventors
Classifications
from rubber or rubber waste · CPC title
Reduction, e.g. hydrogenation · CPC title
saturated · CPC title
used as base material · CPC title
Alumina · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11499110B2 cover?
- A method of upcycling polymers to useful hydrocarbon materials. A catalyst with nanoparticles on a substrate selectively docks and cleaves longer hydrocarbon chains over shorter hydrocarbon chains. The nanoparticles exhibit an edge to facet ratio to provide for more interactions with the facets.
- Who is the assignee on this patent?
- Uchicago Argonne Llc
- What technology area does this patent fall under?
- Primary CPC classification C10M111/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 15 2022 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).