Process for the production of polymers by using coupling reactions
US9074050B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2012 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | May 29, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2261/411
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a continuous process for the production of polymeric coupling products by using a reactor assembly which is equipped with two or more reaction cells. The educt fluid is pumped through the reaction cells and thoroughly mixed therein by means of agitators. Preferably the process according to the invention is used for the preparation of coupling products which show at least partially precipitation and/or gelation effects during the performance of the synthesis. The precipitation and/or gelation effects are associated with and increase of the viscosity of the reaction system under reaction conditions. The products which are obtained by the process according to the invention have increased molecular weight and low polydispersity over similar products which were obtained in batch experiments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.