Process for producing narrow polydispersity alkenylphenol polymer
US6218485A · kind A · utility
5Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2000 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Apr 24, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F36/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for producing a monodisperse polymer which has a number-average molecular weight from 1,000 to 100,000 and a molecular weight distribution Mw (weight-average molecular weight)/Mn (number-average molecular weight)=1.00 through 1.50 is disclosed. This process comprises: homopolymerizing or random copolymerizing an anionic polymerizable compound by living anionic polymerization using an organic alkali metal and/or an alkali metal as a polymerization initiator, wherein a target molecular weight is obtained by adding the compound divided into multiple steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.