Photocurable compositions having variable viscosities
US12258449B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2020 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Mar 5, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C13/0022
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Photocurable compositions comprising 20-90% by weight of a polymerizable core resin; 20-90% by weight of a diluent resin miscible with said core resin; and at least about 1% by weight of at least one rheology modifier which is distinct from said diluent resin. Rheology modifiers of the present disclosure include compounds which may form covalent bonds with the core resin or diluent resin and compounds which have a particle size of 1-200 nm. Rheology modifiers which may form covalent bonds have at least one terminal functional group selected from the group consisting of acrylates, methacrylates, epoxides, oxetanes, nitriles, alkenes and alkynes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.