Process for producing plaster models for use in dentistry
US4585667A · kind A · utility
1Cited by
0References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1984 |
| Grant date | Apr 29, 1986 |
| Priority date | — |
| Expiry date | Dec 28, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/887
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The physical properties, especially resistance to abrasion, to bending and to pressure, of plaster models for use in dentistry are improved in that a plaster model obtained in a manner known in the art is impregnated with (a) at least one photopolymerizable ester of acrylic and/or methacrylic acid, (b) at least one photopolymerization initiator, and (c) optionally at least one photopolymerization activator--(a), (b) and (c) being present in liquid or dissolved state--and the impregnated plaster model is irradiated with light suitable to initiate photopolymerization by the photoinitiator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.