Shelf stable haze free liquids of overbased alkaline earth metal salts
US6689893B2 · kind B2 · utility
5Cited by
24References
44Claims
0Family size
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Key dates
| Filing date | May 18, 2001 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Dec 29, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Shelf stable haze free liquids of overbased alkaline earth metal salts are obtained by reacting metal base with fatty acids in the presence of liquid hydrocarbon and aliphatic alcohols having at least 8 carbon atoms to provide overbased liquids essentially free of a phenol or a phenolic derivative. Stabilizer compositions containing the overbased liquids and mixed metal stabilizers of zinc, cadmium and tin are provided for stabilizing halogen-containing polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.