公开(公告)号：ES2192679T3

公开(公告)日：2003-10-16

申请号：ES97917426

申请日：1997-04-18

Applicant: BRIDGESTONE CORP

Inventor： OBANA NAOHIKO ,  KANEKO YOSHIKAZU ,  OSAWA RYUZO

IPC: B60C9/00 ,  D07B1/06

公开(公告)号：DE69718738T2

公开(公告)日：2003-10-23

申请号：DE69718738

申请日：1997-04-18

Applicant: BRIDGESTONE CORP ,  BRIDGESTONE METALPHA CORP

Inventor： OBANA NAOHIKO ,  KANEKO YOSHIKAZU ,  OSAWA RYUZO

IPC: B60C9/00 ,  D07B1/06

公开(公告)号：DE3822357A1

公开(公告)日：1989-01-12

申请号：DE3822357

申请日：1988-07-01

Applicant: BRIDGESTONE CORP

Inventor： NAKAJIMA TADASHI ,  TOYOSAWA SHINICHI ,  KIJIMA SHIGERU ,  ARAI KATSUHIKO ,  MAEDA YUKO ,  OGAWA MASAO ,  KAWAGOE TAKAHIRO ,  IINO YASUHIRO ,  OSAWA RYUZO ,  ISHINO YUICHI

IPC: H01B1/12 ,  H01M4/60 ,  C25B3/02 ,  C08G73/02

Abstract: Polyaniline is highly conductive and less corrosive if it contains up to 7 mol % of the polyaniline in the benzeneammonium state and up to 25 mol % of the polyaniline in the quinonediimine state; both the amounts stated are based on the total molar amount of polyaniline.

公开(公告)号：DE69718738D1

公开(公告)日：2003-03-06

申请号：DE69718738

申请日：1997-04-18

Applicant: BRIDGESTONE CORP ,  BRIDGESTONE METALPHA CORP

Inventor： OBANA NAOHIKO ,  KANEKO YOSHIKAZU ,  OSAWA RYUZO

IPC: B60C9/00 ,  D07B1/06

公开(公告)号：EP0834613A4

公开(公告)日：1999-03-17

申请号：EP97917426

申请日：1997-04-18

Applicant: BRIDGESTONE CORP ,  BRIDGESTONE METALPHA CORP

Inventor： OBANA NAOHIKO ,  KANEKO YOSHIKAZU ,  OSAWA RYUZO

IPC: B60C9/00 ,  D07B1/06

CPC classification number: D07B1/062 ,  B60C9/0007 ,  D07B1/0626 ,  D07B1/0633 ,  D07B2201/2023 ,  D07B2201/2029 ,  D07B2401/208 ,  Y10S57/902

Abstract: A steel cord constituting a rubber article, especially a carcass and belt of a pneumatic tire, and more particularly a steel cord using a steel single wire having a tensile strength of as high as 4000-4800 N/mm and not wound on an outer circumferential surface thereof with a wrapping wire, wherein the ratio R1/R0 of the radius of curvature R0 of the spiral of each steel single wire spirally formed and obtained by untwisting a steel cord, the radius of curvature R1 of the spiral, obtained after the surface layer on the inner side of the spiral of this steel single wire has been melted and removed, is less than 1, whereby degradation of the corrosion and fatigue resistances, which may be a problem of a steel single wire of a high tensile strength, can be advantageously prevented.