Dual-curing dental compositions with high stability
US11020324B2 · kind B2 · utility
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8References
17Claims
0Family size
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Key dates
| Filing date | Feb 26, 2019 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Feb 26, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/77
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Two-part dual-curing dental compositions containing a hydroperoxide, a thiourea derivative and an acetylacetonate salt as redox radical initiator system, are provided. The dental compositions may contain an acidic monomer for use as a self-adhesive cement. The dental compositions possess enhanced shelf-life stability for working/setting time, bonding strength, color stability, slump, flexural strength/modulus, and when kept at 50° C. for more than 16 weeks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.