Polyamide-rubber blended composition
US4567238A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1984 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Oct 31, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/092
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention describes a polyamide-rubber blended composition having improved resistance to ozone, stress whitening and gasoline prepared by mixing together with heating the following components: PA1 (a) from 70 to 20 volume percent of a rubber composition consisting of: PA2 (i) 30 to 70 volume percent of an acrylonitrile-butadine copolymer rubber containing at least 0.8 weight percent of an epoxy group in the polymer, and PA2 (ii) 30 to 80 volume percent of an epichlorohydrin rubber; PA1 (b) 30 to 80 volume percent of a polyamide resin; and PA1 (c) at least 0.15 parts by weight of a carboxylic acid having a functional group calculated in terms of the weight of the carboxyl group per 100 parts by weight of the rubber composition of component (a).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.