Rubber for baby bottle nipples, pacifiers, and syringe plungers
US7928178B2 · kind B2 · utility
1Cited by
37References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2004 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Mar 27, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2309/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The production of a protein free synthetic polyisoprene which has both low levels of chemical impurities and good physical properties has yet to be realized. It has now been envisioned that the use of neodymium catalyzed polyisoprene will offer the combined advantages of both a clean, as well as, high cis-1,4 polymer. Synthesis of polyisoprene rubber using a neodymium based catalyst system is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.