Preparation and use of ultrahigh-molecular-weight polycarbonates
US7728099B2 · kind B2 · utility
1Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 9, 2005 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Feb 11, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G64/0208
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a process for preparation of polycarbonates with weight-average molar mass MW≧230,000 g/mol and with ≦2% by weight content of cyclic compounds, including the following steps:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.