Method for manufacturing nitrile-based rubber, nitrile-based rubber manufactured thereby, and rubber composition comprising same rubber
US12240931B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2020 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Dec 15, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/86
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided are a preparation method of a nitrile-based rubber, a nitrile-based rubber prepared therefrom, and a rubber composition including the nitrile-based rubber, and the nitrile-based rubber has a low content of a residual emulsifier and excellent mechanical physical properties by using a emulsifier mixture including a first emulsifier including a sulfosuccinate ester-based compound, and a second emulsifier including a fatty acid or a metal salt thereof, or a rosin acid or a metal salt thereof, each of which has 12 to 18 carbon atoms and a monocarboxyl group, wherein the first emulsifier and the second emulsifier are included at a weight ratio of 2:1 to 6:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.