Denture adhesive
US5037924A · kind A · utility
43Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1990 |
| Grant date | Aug 6, 1991 |
| Priority date | — |
| Expiry date | Jul 25, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F222/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
According to this invention, there is provided a denture adhesive which is a mixed partial salt of a terpolymer of maleic anhydride, (MA) a C.sub.1 -C.sub.4 alkyl vinyl ether (AVE) and isobutylene (IB) vinyl ether, having a weight average molecular weight of about 30,000 to 400,000, preferably about 50,000 to 350,000. The terpolymer has its components in the molar ratio of MA:AVE:IB of about 1:0.4-0.9:0.1-0.6, preferably about 1:0.5-0.8-0.2-0.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.