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Title:
A M+N STEEL CORD FOR REINFORCING RUBBER PRODUCT
Document Type and Number:
WIPO Patent Application WO/2017/156737
Kind Code:
A1
Abstract:
A steel cord for rubber reinforcement comprises a first group of core filaments having a number of m and a second group of sheath filaments having a number of n, m is three or four, the core filaments are forming a helix, the core filaments are not twisted together and being substantially parallel or the core filaments have a twist pitch being more than 300mm; the second group and the first group are twisted around each other, and the sheath filaments are forming a flattened helix in the same direction of the helix of the core filaments, and the sheath filaments have a cord twist pitch, at any cross-section of the steel cord, at least one interstice between two adjacent core filaments is present. The steel cord has improved abrasion resistance and can contribute to the reduction of the weight of the tire.

Inventors:
WANG, He (No. 5 Dongwaihuan Road, Binjiang EconomicDevelopment Zon, Jiangyin Jiangsu 4, 214434, CN)
ZHOU, Wei (No. 5 Dongwaihuan Road, Binjiang EconomicDevelopment Zon, Jiangyin Jiangsu 4, 214434, CN)
ZHU, Xiangyu (No. 5 Dongwaihuan Road, Binjiang EconomicDevelopment Zon, Jiangyin Jiangsu 4, 214434, CN)
ZHU, Hongzhen (No. 5 Dongwaihuan Road, Binjiang EconomicDevelopment Zon, Jiangyin Jiangsu 4, 214434, CN)
Application Number:
CN2016/076572
Publication Date:
September 21, 2017
Filing Date:
March 17, 2016
Export Citation:
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Assignee:
NV BEKAERT SA (Bekaertstraat 2, Zwevegem, 8550, BE)
BEKAERT (CHINA) TECHNOLOGY RESEARCH AND DEVELOPMENT CO., LTD. (No. 98 Hongtong Road, Jiangyin, Jiangsu 4, 214434, CN)
International Classes:
D07B1/06; D02G3/48
Domestic Patent References:
WO2015169521A12015-11-12
WO2010086043A12010-08-05
Foreign References:
JP2001011782A2001-01-16
US20100005774A12010-01-14
US20150068655A12015-03-12
JP2002235289A2002-08-23
Attorney, Agent or Firm:
KING & WOOD MALLESONS (20th Floor, East Tower World Financial Centre, No.1 Dongsanhuan Zhonglu,Chaoyang District, Beijing 0, 100020, CN)
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