Immobilized Lewis acid catalysts
US5409873A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1992 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | Jun 26, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Immobilized Lewis Acid catalyst comprising polymer having at least one Lewis Acid immobilized within the structure therein, said polymer having monomer units represented by the structural formula: EQU --[A].sub.a --[B].sub.b --[C].sub.c -- wherein PA1 a represents about 1 to about 99 mole % PA1 b represents about 0 to about 50 mole % PA1 c represents about 1 to about 99 mole % PA1 a+b+c is preferably about 100 %; ##STR1## C is selected from the group consisting of: ##STR2## and, (III) combinations thereof, wherein PA1 D is OH, halide, OR.sup.4, NH.sub.2, NHR.sup.3, OM', or OM"; PA1 E is the residue of the reaction of at least one Lewis Acid with the D substituent of monomer unit B.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.