Olefin polymerizations and printing methods thereof
US11987653B1 · kind B1 · utility
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19Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 23, 2020 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Dec 29, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of preparing a polyolefin is disclosed. In some examples, the method comprises contacting an olefin monomer with an olefin polymerization precatalyst and a photoacid generator (PAG) to provide an olefin polymerization mixture; and irradiating the olefin polymerization matrix for a first period of time with ultraviolet or visible light, activating the precatalyst to catalyze polymerization of the olefin monomer, thereby preparing a polyolefin. Additive manufacturing approaches employing the methods are also disclosed, as are ink compositions comprising an olefin polymerization precatalyst and a PAG.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.