Novel organotin compounds, a process for their preparation and their use as stabilizers for polyvinyl chloride polymers
US4309337A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1979 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Dec 6, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/226
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel organotin compounds of the formula: ##STR1## wherein q is 1 or 2; m is 1,2 or 3; R.sub.6 is an alkyl group having from 1 to 18 carbon atoms, a cycloalkyl group having from 3 to 6 carbon atoms, an aryl group, an aralkyl group, and alkaryl group having up to 30 carbon atoms, or a group of the formula: ##STR2## wherein R.sub.7, R.sub.8, R.sub.9 and R.sub.10 are each independently an alkyl group having from 1 to 18 carbon atoms, an oxygen-containing hydrocarbon group or a hydrogen atom, with the proviso that at least one of R.sub.7 and R.sub.8 contains, adjacent to the HC grouping, a carbonyl group which forms part of an acid group, an ester group, and acid halide group, a ketone group or an aldehyde group; when q=1, R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5, are, each independently, a hydrogen atom, an alkyl or alkoxy group having from 1 to 14 carbon atoms, a cycloalkyl or cycloalkoxy group, having from 3 to 6 carbon atoms, a nitro group or a halogen atom; and when q=2, m=1, and the two structural units in the para position are interlinked directly or by way of an oxygen atom, a methylene group, an SO.sub.2 group of an isopropylidene group and R.sub.1 R.sub.2 R.sub.4 and R.…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.