Urethane acrylate composition
US11891469B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 28, 2021 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Jun 28, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a photopolymerizable composition comprising a blend of: a) from 40 wt. % to 70 wt. % of at least one urethane component; b) from 25 wt. % to 70 wt % of at least one monofunctional reactive diluent; c) from 0.1 wt. % to 5 wt. % of at least one initiator; and d) from 2 wt. % to 10 wt % of an amine-functional (meth)acrylate monomer. Also provided is a process of producing a photopolymerizable composition by blending these ingredients. Further provided is a process of producing a three-dimensional object, by depositing the photopolymerizable composition atop a carrier; depositing additional photopolymerizable composition atop a previously applied layer wherein the depositing of the photopolymerizable composition comprises introducing energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.