.alpha., .omega.-chlorosilazanes, and a process for their preparation
US5138079A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1991 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Jan 24, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/62
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention 1204 to a process for the preparation of .alpha., .omega.-chlorosilazanes which comprises reacting an oligohydridoorganylsilazane of the formula [--RSiH--NH--].sub.n in which n is from about 3 to about 12 with at least one of the chlorosilanes R.sup.1 HSiCl.sub.2, R.sup.2 R.sup.3 SiCl.sub.2, R.sup.4 SiCl.sub.3, Cl.sub.2 R.sup.5 SiCl.sub.2 CH.sub.2 SiR.sup.5 Cl.sub.2 and Cl.sub.3 SiCH.sub.2 CH.sub.2 SiR.sup.6 Cl.sub.2 where R is C.sub.1 -C.sub.6 -alkyl or C.sub.2 -C.sub.6 -alkenyl and,independently of one another, R.sup.1 -R.sup.6 are H, C.sub.1 -C.sub.6 alkyl, or C.sub.2 -C.sub.6 -alkenyl, at from -20.degree. C. to +50.degree. C. In addition, the invention relates to the novel .alpha., .omega.-chlorosilazanes obtainable by this process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.