1,3-Dihydrocarbyl-pyrazole compounds as stabilizers for organic materials
US3963737A · kind A · utility
3Cited by
2References
8Claims
0Family size
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Key dates
| Filing date | Jul 2, 1975 |
| Grant date | Jun 15, 1976 |
| Priority date | — |
| Expiry date | Jul 2, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/45
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1,3-Dihydrocarbyl-pyrazole compounds, having a 5-hydroxyl group in free or nickel salt form, characterized by a ketoxyimino group bound directly to the 4-position of the pyrazole ring through the ketoxyimino functional carbon atom, which are useful as stabilizers of organic materials against the adverse effects of ultraviolet light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.