Rubber-steel hybrid cord and pneumatic radial tire (using the same)
US9033015B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 19, 2010 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Nov 8, 2030 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD07B2501/2046
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A rubber-steel hybrid cord of the present invention is characteristically formed by twisting a plurality of sheath filaments or sheath strands around a core in which a periphery of and space surrounded by one or a plurality of core filaments or a core strand are coated or filled with a filler rubber (A) containing an adhesion promoter, thereby forming a multilayer-twist steel cord or a multi-twist steel cord, and coating an outer surface of the multilayer-twist steel cord or the multi-twist steel cord with a coating rubber (C). Further, an amount of an adhesion promoter contained in the coating rubber (C) is equal to or more than an amount of the adhesion promoter contained in the filler rubber (A).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.