Medical container stopper
US4664275A · kind A · utility
69Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1985 |
| Grant date | May 12, 1987 |
| Priority date | — |
| Expiry date | Sep 5, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2200/0632
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A stopper for hermetically sealing an opening of a medical container. The stopper is made of a composition comprising 30 to 80% by weight of a partially cross-linked butyl rubber, 10 to 40% by weight of a thermoplastic resin, and 5 to 50% by weight of an inorganic powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.