Polylactam composition containing hexaorgano distannane
US4108828A · kind A · utility
0Cited by
5References
4Claims
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Key dates
| Filing date | Jun 16, 1975 |
| Grant date | Aug 22, 1978 |
| Priority date | — |
| Expiry date | Jun 16, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Hexaorgano distannanes of the general formula R.sub.3 Sn--SnR.sub.3 significantly reduce or eliminate the discoloration which occurs when mixtures containing an alkali metal salt of a lactam are stored under an inert atmosphere for extended periods of time at temperatures between ambient and 100.degree. C. R in the foregoing formula represents a monovalent hydrocarbon radical containing between 1 and 20 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.