Title:
METAL CORD-RUBBER COMPOSITE BODY
Document Type and Number:
WIPO Patent Application WO/2016/052449
Kind Code:
A1
Abstract:
The present invention is a metal cord-rubber composite body obtained by coating one of the following with a rubber composition: a metal cord that comprises a single steel wire having brass plating on the circumferential surface thereof; or a metal cord obtained by twisting together a plurality of the steel wires. The metal cord-rubber composite body is characterized in that the ratio Cu/Zn (atomic ratio) in the outermost surface of the brass plating is 1 to 4 according to X-ray photoemission spectroscopy (XPS), the content of Zn in the outermost surface is 14 at.% or less, and the rubber composition is obtained by blending a rubber component (A) and 0.1 to 10 parts by mass of a co-condensate (B) with respect to 100 parts by mass of the rubber component (A), said co-condensate (B) having a softening point of 150 °C or less and comprising a p-tert-butylphenol-derived constituent unit represented by formula (1), an o-phenylphenol-derived constituent unit represented by formula (2), and a resorcinol-derived constituent unit represented by formula (3). The metal cord-rubber composite body has improved adhesiveness, particularly wet heat adhesiveness, and is obtained by coating a metal cord in which the atomic ratio of Cu/Zn and the like in the outermost surface of a brass-plated layer are limited with a rubber composition that has a novel co-condensate blended thereinto and that does not use p-tert-octylphenol or p-nonylphenol, the use of which may be restricted by laws and regulations.
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Inventors:
YAMAGISHI JUNICHI (JP)
MUSHA SHINICHI (JP)
KANATOMI YOSHIHIKO (JP)
MUSHA SHINICHI (JP)
KANATOMI YOSHIHIKO (JP)
Application Number:
PCT/JP2015/077402
Publication Date:
April 07, 2016
Filing Date:
September 28, 2015
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
D07B1/06; B60C1/00; B60C9/00; C08J5/04; C08L21/00; C08L61/12; C22C9/04
Domestic Patent References:
| WO2011030547A1 | 2011-03-17 | |||
| WO2014156870A1 | 2014-10-02 |
Foreign References:
| JPS5394577A | 1978-08-18 | |||
| JP2007211152A | 2007-08-23 | |||
| JP2014152220A | 2014-08-25 | |||
| JPS54114552A | 1979-09-06 | |||
| CN103012870A | 2013-04-03 | |||
| JP2007177386A | 2007-07-12 | |||
| JP2011219837A | 2011-11-04 | |||
| JP2015163668A | 2015-09-10 |
Attorney, Agent or Firm:
OHTANI, Tamotsu (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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