1,3-dipolar compound bearing a phosphorus-containing group and a dipole containing a nitrogen atom
US10787471B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2016 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Nov 18, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2309/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A 1,3-dipolar compound bearing at least a phosphorus-containing group and a dipole containing a nitrogen atom is provided. A method for grafting the 1,3-dipolar compound on an unsaturated polymer, a diene polymer comprising, along the polymer chain, at least one pendant phosphorus-containing group, and a rubber composition based on a diene elastomer and the 1,3-dipolar compound optionally pre-grafted on the diene elastomer are also provided. The 1,3-dipolar compound allows access to rubber compositions reinforced with an inorganic filler that have a compromise of improved properties, namely hysteresis, stiffness in the cured state and reinforcement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.