Medical container stopper
US4444330A · kind A · utility
78Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1982 |
| Grant date | Apr 24, 1984 |
| Priority date | — |
| Expiry date | Jul 27, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2200/0687
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A stopper for hermetically sealing the opening of a medical container is made of an injection-moldable polymeric material containing a blend of 30 to 90% by weight of a butyl-based rubber and 70 to 10% by weight of a thermoplastic elastomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.