Immobilized Lewis Acid catalysts
US5600055A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 1995 |
| Grant date | Feb 4, 1997 |
| Priority date | — |
| Expiry date | May 8, 2015 |
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: ##STR1## wherein 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%; ##STR2## C is selected from the group consisting of: ##STR3## (III) combinations thereof. 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; PA1 R.sup.1 represents proton, C.sub.1 -C.sub.24 alkyl group, or C.sub.3 -C.sub.24 cycloalkyl; PA1 R.sup.2 represents C.sub.1 -C.sub.24 alkyl group, C.sub.3 -C.sub.24 cycloalkyl, C.sub.6 -C.sub.18 aryl, or C.sub.7 -C.sub.30 alkylaryl; PA1 R.sup.3 represents C.sub.1 -C.sub.24 alkyl, C.sub.3 -C.sub.24 cycloalkyl, C.sub.1 -C.sub.24 aryl, or C.sub.7 -C.sub.30 alkylaryl; PA1 R.sup.4 represents C.sub.1 -C.sub.24 alkyl, C.sub.3 -C.sub.24 cycloalkyl, C.sub.1 -C.sub.24 aryl, or C.sub.7 -C.sub.30 alkylaryl; PA1 M' represents alkali metal; PA1 M" represents alkaline-ear…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.