Antidegradant blend
US11572455B2 · kind B2 · utility
0Cited by
30References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2018 |
| Grant date | Feb 7, 2023 |
| Priority date | — |
| Expiry date | Oct 11, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2201/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to an antidegradant blend, comprising: at least one metal carboxylate; at least one inorganic phosphite; at least one phenolic antioxidant; and at least one organic phosphite antioxidant. As examples, the metal carboxylate may comprise a metal stearate, a metal lactate and/or a metal benzoate while the inorganic phosphite may comprise one or more metal hypophosphites.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.