Process for the anionic polymerization of acrylic monomers and optionally of vinyl comonomers
US4927703A · kind A · utility
1Cited by
1References
6Claims
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Key dates
| Filing date | Apr 26, 1989 |
| Grant date | May 22, 1990 |
| Priority date | — |
| Expiry date | Apr 26, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/901
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the polymerization of acrylic monomers and optionally of vinyl comonomers using (i) an initiator of formula (I): EQU R--M (I) in which M denotes a metal selected from the group consisting of alkali metals and alkaline earth metals and R denotes a straight-chain or branched alkyl radical containing 2 to 6 carbon atoms or an aryl radical, and (ii) at least one non-nitrogenous macrocyclic complexing agent. The polymerization process is used to make products of acrylic polymers having a narrow distribution of molecular masses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.