Title:
ELASTOMER REINFORCEMENT CORD
Document Type and Number:
WIPO Patent Application WO/2020/090833
Kind Code:
A1
Abstract:
Provided is an elastomer reinforcement cord having improved rust resistance. The elastomer reinforcement cord 10 comprises metal filaments and a polymer material. The elastomer reinforcement cord 10 comprises at least one core strand 21 including a plurality of twisted metal filaments 1a, 1b and at least two sheath strands 22 each including a plurality of twisted metal filaments 11a, 11b, and has a double-twisted structure in which the sheath strands are twisted around the core strand. The proportion a of filling in the sheath strands which is the proportion of the area of the polymer material to that of space regions A inside the sheath strands is 52% or more and the proportion b of filling between the sheath strands which is the proportion of the area of the polymer material to that of a space region B between the sheath strands is 75% or more.
Inventors:
ANDO NOBUHIRO (JP)
Application Number:
PCT/JP2019/042418
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 | |||
| JPH06122162A | 1994-05-06 | |||
| JP2010248670A | 2010-11-04 | |||
| JP2012531540A | 2012-12-10 | |||
| US20100257834A1 | 2010-10-14 | |||
| JP2001234444A | 2001-08-31 |
Other References:
See also references of EP 3875677A4
Attorney, Agent or Firm:
HONDA Ichiro (JP)
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