Method of preparing an aminoalkylalkoxysilane
Abstract
Abstract An improved method of preparing an aminoalkylalkoxy silane of the formula: ##STR1## in which R 1 and R 2 independently are alkyl groups having 1-8 carbon atoms, R 3 is a hydrogen atom or an alkyl group having 1-6 carbon atoms, R 4 and R 5 independently are a member selected from the group consisting of a hydrogen atom, an alkyl group having 1-10 carbon atoms, --CH 2 CH 2 NH 2 , --CH 2 CH 2 NHCH 2 CH 2 NH 2 , an allyl group, a substituted phenyl group and a nonsubstituted phenyl group and a is an integer from 0-2, comprises the step of reacting a silane compound with an allylamine in the presence of a catalyst composition selected from the group consisting of (1) a rhodium complex catalyst and a heterocyclic compound containing nitrogen and/or sulfur atoms and (2) a rhodium complex catalyst having a heterocyclic compound containing nitrogen and/or sulfur atoms as a ligand.
Inventors
- 👤 Keiji Kabeta
- 👤 Michio Zenbayashi
Bibliographic Details
Claims Analysis
Total Claims: 5References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-21 | 1993-11-20 | 1994-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-21 | 1997-11-20 | 1998-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-21 | 2001-11-20 | 2002-05-22 | $7700.00 | Window Closed / Lapsed |