Rubber reinforcing cord and fiber reinforced rubber material
US6500531B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2000 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Dec 24, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The subject of this invention is to provide a rubber reinforcing cord that can be suitably used as a reinforcing material of rubber materials such as tires, belts and hoses and is excellent in fatigue resistance. This invention is a rubber reinforcing cord, characterized in that a carbon fiber bundle having a breaking extension of 1.7% or more is impregnated with a resin composition containing a rubber latex, and that the initial gradient (dM/dy) at y=0 of the bending load M—deflection y curve of the cord is 1000 N/m or less. This invention is a substantially twist-less rubber reinforcing cord, characterized in that a carbon fiber bundle having a breaking extension of 1.7% or more is impregnated with a resin composition containing a rubber latex, and that the number of twist of the cord is 10 per meter or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.