Nitrile copolymer rubber composition and nitrile copolymer latex composition
US8563644B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2008 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Dec 6, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1386
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A nitrile copolymer rubber composition obtained by coagulation of a nitrile copolymer latex composition comprised of a latex of a nitrile copolymer rubber (A) having α,β-ethylenically unsaturated nitrile monomer units in 55 to 80 wt % and cationic monomer units and/or monomer units able to form cations in which an inorganic filler (B) is dispersed is provided. Note that, preferably, the inorganic filler is a clay. According to the present invention, a nitrile copolymer rubber composition giving a nitrile copolymer rubber cross-linked product with an extremely low gasoline permeability and superior in sour gasoline resistance can be provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.