Composition based on high molecular weight organotin maleates which can be used to stabilize thermoplastic polymers, process for producing the said compositions
US5985967A · kind A · utility
0Cited by
4References
27Claims
0Family size
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Key dates
| Filing date | Jan 9, 1998 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Jan 9, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C57/145
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a composition containing high molecular weight organotin maleates as obtained by reacting a high molecular alcohol or epoxyalkane with maleic anhydride and by then bringing the mixture thus obtained into contact with a dialkyltin oxide. The invention also relates to the poly(vinyl chloride) (PVC) compositions stabilized using the said composition based on high molecular weight organotin maleates and also to the extruded rigid items formed from the said PVC compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.