Chloro-terminated polysilane
US5403943A · kind A · utility
2Cited by
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13Claims
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Assignee
Inventors
Key dates
| Filing date | Sep 24, 1993 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | Sep 24, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/60
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides a novel chloro-terminated polysilane of the formula: EQU Cl[(R.sup.1 R.sup.2 Si).sub.n (R.sup.3 R.sup.4 Si).sub.m ].sub.k Cl(1) wherein R.sup.1, R.sup.2 and R.sup.3 are alkyl and aryl groups, R.sup.4 is a monovalent hydrocarbon group having 2 to 12 carbon atoms selected from substituted and unsubstituted alkyl and aryl groups, n, m and k are numbers in the range: 0.ltoreq.n.ltoreq.10, 0<m.ltoreq.10, n+m.gtoreq.10, and k.gtoreq.1, especially k.gtoreq.5. It is prepared by exposing a high-molecular weight polysilane in chlorinated hydrocarbon to ultraviolet radiation in an inert gas atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.