Manufacture of polymers of net-shaped structure
US3975339A · kind A · utility
8Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1974 |
| Grant date | Aug 17, 1976 |
| Priority date | — |
| Expiry date | Sep 9, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F257/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the manufacture of polymers of net-shaped crosslinked structure and with uniform length of the crosslinks. In this process, polyfunctional organoalkali metal compounds which have been manufactured by reaction of divinylbenzene with low molecular weight organoalkali metal compounds, are reacted direct, or after prior reaction with anionically polymerizable monomers, with bifunctional or polyfunctional coupling agents. The polymers of net-shaped crosslinked structure have macroporous properties and can be employed, for example, as gels in gel permeation chromatography or as carriers in the synthesis of peptides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.