Polymerizable composition
US5688883A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1995 |
| Grant date | Nov 18, 1997 |
| Priority date | — |
| Expiry date | Mar 14, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/893
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides a polymerizable composition formed by mixing a liquid and a powder composition. The liquid composition includes a peroxide, which decomposes by at most fifty percent by weight of the peroxide within 10 hours at a temperature of at least 75.degree. C., and a polymerizable monomer. The powder composition comprising a proton donor, and a metal containing compound. The polymerizable composition has from 0.2 to 5 percent by weight of the peroxide, from 5 to 99 percent by weight of the polymerizable monomer, and from 0.1 to 3 percent by weight of the proton donor, and from 0.02 to 3 percent by weight of the metal containing compound. The polymerizable composition has an initial setting time and a storage setting time after storage of the first (liquid) composition for at least 12 months at a temperature of at least 23.degree. C. The initial setting time is within 2 minutes of the storage setting time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.