Redistributed polycarbonate resin
US6492485B1 · kind B1 · utility
60Cited by
28References
69Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2000 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | May 13, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2948/92952
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The application relates to methods for producing a polycarbonate resin having a narrowed molecular weight distribution, specifically, the application relates to the use of a redistribution catalyst and a feedback loop control mechanism to prepare narrow molecular weight distribution resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.