Title:
ELASTOMER REINFORCEMENT CORD
Document Type and Number:
WIPO Patent Application WO/2020/090834
Kind Code:
A1
Abstract:
Provided is an elastomer reinforcement cord for which the problem of stress concentration at an interface between an elastomer and a metal cord has been resolved to improve durability. The elastomer reinforcement cord comprises metal filaments 1a and 1b and a polymer material 3 having a melting point or softening point of 80°C or more and 160°C or less. Where a region outside the metal filaments within a region that has a core 11 and at least one sheath layer 12 and is surrounded by lines connecting the centers of the metal filaments constituting the outermost sheath layer in a cross section in the direction orthogonal to the axial direction after vulcanization is taken as a gap region, the gap region includes the polymer material, and the filling ratio, which is the proportion of the area of the polymer material, is more than 120% where the area of the gap region is 100%.
More Like This:
Inventors:
SHIZUKU TAKAHISA (JP)
Application Number:
PCT/JP2019/042419
Publication Date:
May 07, 2020
Filing Date:
October 29, 2019
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
D07B1/06; B60C9/00
Foreign References:
| JPS4740188Y1 | 1972-12-05 | |||
| JPS60231884A | 1985-11-18 | |||
| JP2001214387A | 2001-08-07 | |||
| JP2009024268A | 2009-02-05 | |||
| JP2014509353A | 2014-04-17 | |||
| JPH05198212A | 1993-08-06 | |||
| JP2014514993A | 2014-06-26 | |||
| JPH05125675A | 1993-05-21 | |||
| JP2018001749A | 2018-01-11 | |||
| JP2001234444A | 2001-08-31 |
Other References:
See also references of EP 3875678A4
Attorney, Agent or Firm:
HONDA Ichiro (JP)
Download PDF: