Two-component adhesive for bonding artificial teeth to a denture base
US9918908B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2014 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Mar 27, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F222/102
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Dental adhesives and their uses, for instance an adhesive containing at least one first component A and at least one second component B, characterized in that said at least one first component A comprises a methyl methacrylate, a copolymer of methyl methacrylate dissolved in excess methyl methacrylate, at least one polyfunctional (meth)acrylate and a peroxide-based free-radical initiator, wherein said copolymer of methyl methacrylate is present in an amount of 30-50 parts by weight dissolved in a solution of 65-85 parts by weight of monomeric methyl methacrylate and 3-15 parts by weight of the polyfunctional (meth)acrylate, especially the triethylene glycol dimethacrylate (TEGDMA), mixed with a solution of 0.5 to 3 parts by weight of said peroxide-based free-radical initiator, especially dibenzoyl peroxide, in 70-90 parts by weight of monomeric methyl methacrylate, and said at least one second component B comprises methyl methacrylate and a tertiary amine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.