Hydrophilic macroporous three dimensional copolymers of hydroxyalkyl acrylates or methacrylates with crosslinking agents and the method of their manufacturing
US4251634A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1978 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Apr 28, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2333/14
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention pertains to hydrophilic macroporous threedimensional copolymers of hydroxyalkyl methacrylates or hydroxyalkyl acrylates (C.sub.1 -C.sub.4 hydroxyalkyl) with crosslinking monomers which contain covalently attached saccharides via an O-glycosidic bond. The invention further pertains to the method of manufacturing of these copolymers by the direct reaction of the basic three dimensional copolymer containing hydroxyl groups with saccharides or their derivatives in an inert organic solvent under catalysis of HCl, BF.sub.3, or their mixtures at 20.degree.-100.degree. C. Saccharides and their derivatives are selected from the group comprising monosaccharides, oligosaccharides, deoxy sugars, amino saccharides, acylated saccharides, ether or halogen derivatives of monosaccharides and oligosaccharides, and the like. The invention also pertains to the application of these macroporous three dimensional copolymers with saccharides as sorbents and materials for the affinity chromatography for isolation of physiologically effective materials which contain free bonding sites for saccharides and are able to form specific complexes with saccharides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.