Anti-yellowing composition
US4252698A · kind A · utility
23Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1979 |
| Grant date | Feb 24, 1981 |
| Priority date | — |
| Expiry date | Apr 17, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An anti-yellowing additive is provided for environmentally acceptable stabilized vinyl chloride polymer compositions from which arsenic, beryllium, cadmium, lead, mercury, and thallium are substantially excluded, comprising at least one overbased sulfonate or phenolate compound of lithium, sodium, potassium, magnesium, calcium, strontium, barium, zinc, titanium, aluminum, zirconium, or tin, and a 1,3-diketone compound having 5 to 30 carbon atoms, which is a cyclic or open-chain 1,3-diketone or a lithium, sodium, potassium, magnesium, calcium, strontium, barium, zinc, aluminum, tin or zirconium salt thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.