Polymeric alkoxides based on hydroxyalkyl methacrylates and a method for their preparation
US3974111A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1974 |
| Grant date | Aug 10, 1976 |
| Priority date | — |
| Expiry date | Dec 18, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymeric alkoxides based on hydroxyalkyl methacrylates consist of units ##EQU1## where X is the organic bivalent group with the straight or branched C.sub.2 --C.sub.20 chain and M is Li, Na or K. The polymer has advantageously a heterogeneous structure of a macroporous gel with the inner surface 0.5 - 500 m.sup.2 /g. Polymeric alkoxides are prepared by treatment of a homopolymer or copolymer containing hydroxyl groups with the necessary amount of an alkali metal organic compound dissolved in an aprotic solvent, to convert the hydroxyl groups. Alkyl, aralkyl or aryl C.sub.1 to C.sub.30 derivatives of Li, Na or K are used as the alkali metal organic compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.