Polaymine curable, highly saturated nitrile rubber composition
US9403972B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2013 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Apr 5, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2200/0612
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a polyamine curable, highly saturated nitrile rubber composition having excellent cold resistance in the presence of a polycyclic aromatic compound; the composition comprising 100 parts by weight of a polyamine curable, highly saturated nitrile rubber having an α,β-ethylenically unsaturated nitrile monomer unit, a diene-based monomer unit, an α,β-ethylenically unsaturated dicarboxylic acid monoester monomer unit, and an α,β-ethylenically unsaturated carboxylic acid ester monomer unit other than the α,β-ethylenically unsaturated dicarboxylic acid monoester monomer unit, and having an α,β-ethylenically unsaturated nitrile monomer unit content of 21.0 to 23.0 wt. %, preferably 21.0 to 22.5 wt. %, more preferably 21.0 to 22.0 wt. %, and an iodine value of 120 or less, and 4 to 31 parts by weight of an aliphatic carboxylic acid diester compound of polyalkylene glycol. The polyamine curable, highly saturated nitrile rubber composition is used as a cure molding material of a sealing material that can be suitably used in an environment in which the sealing material is immersed in polycyclic aromatic compound-containing fuel oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.