| 摘要 |
An elastic filament formed from an elastomeric material wherein the filament achieves an effective compressive force at an extension between 20 to 60 % after which any further extension of the filament up to an extension of 100 % is accompanied by only a small increase in compressive force wherein the elastic filament is resistant to degradation by hydrocarbon oils and the elastomeric material comprises heterochain segmented block copolymers. |
