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公开(公告)号：ES2073127T3
公开(公告)日：1995-08-01
申请号：ES91308307
申请日：1991-09-11
Applicant: BRIDGESTONE CORP
Inventor： INADA NORIO , IWASAKI SHIZUO , KIKUCHI MICHITSUGU
Abstract: A pneumatic radial tire has a belt comprised of a plurality of belt layers, in which at least one belt layer (4) is formed by arranging particular twisted cords, which are obtained by twisting particular filament-resin composite bodies (1), at a particular defined end count. In this tire, the weight is light, the rolling resistance and steering stability as well as the resistances to bending of belt cord during rapid turning and breaking of belt cord during running on bad roads are considerably improved.
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公开(公告)号：DE3885719T2
公开(公告)日：1994-04-14
申请号：DE3885719
申请日：1988-12-09
Applicant: BRIDGESTONE CORP
Inventor： KADOTA KUNINOBU , IMAI ISAMU , INADA NORIO
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公开(公告)号：DE69226461T2
公开(公告)日：1999-03-18
申请号：DE69226461
申请日：1992-03-13
Applicant: BRIDGESTONE CORP
Inventor： INADA NORIO , YOSHIDA HIROTO
IPC: C08J5/06 , D06M15/693
Abstract: Polyamide fiber cords for rubber reinforcement are produced by subjecting cords having a denier per filament of 1.5-10 to RFL adhesive solution having a swelling ratio in DMSO of 122-340% at an impregnated state in cord, embedding the thus treated cords in rubber and vulcanizing them, and have a cord strength in rubber of not less than 8.0 g/d. They provide improved fatigue resistance under repetitive compressive strain without lowering strength in the dipping and vulcanization.
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公开(公告)号：DE69013814T2
公开(公告)日：1995-05-18
申请号：DE69013814
申请日：1990-08-20
Applicant: BRIDGESTONE CORP
Inventor： IWASAKI SHIZUO , INADA NORIO
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公开(公告)号：DE3885719D1
公开(公告)日：1993-12-23
申请号：DE3885719
申请日：1988-12-09
Applicant: BRIDGESTONE CORP
Inventor： KADOTA KUNINOBU , IMAI ISAMU , INADA NORIO
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Patent Agency Ranking
公开(公告)号：FR2590207A1
公开(公告)日：1987-05-22
申请号：FR8616025
申请日：1986-11-18
Applicant: BRIDGESTONE CORP
Inventor： IMAI ISAMU , INADA NORIO
Abstract: A heavy duty pneumatic radial tire for use under a high speed and a high internal pressure, is disclosed, which comprises a plurality of carcass cord layers of which cords are arranged at an angle from 90 DEG to 75 DEG with respect to a circumferential direction of the tire. The cords are composed of fibers of an aromatic polyamide having not less than 80 mole % of a repeating unit expressed by the following formula: -NH-Ar1-NHCO-Ar2-CO- in which Ar1 and Ar2 denote at least one kind of an aromatic residue selected from: +TR Elongation En (%) of the aromatic polyamide fibers constituting the respective plies meets the following inequation: En-1+0.2
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公开(公告)号：ES2119797T3
公开(公告)日：1998-10-16
申请号：ES92302193
申请日：1992-03-13
Applicant: BRIDGESTONE CORP
Inventor： INADA NORIO , YOSHIDA HIROTO
IPC: C08J5/06 , D06M15/693
Abstract: Polyamide fiber cords for rubber reinforcement are produced by subjecting cords having a denier per filament of 1.5-10 to RFL adhesive solution having a swelling ratio in DMSO of 122-340% at an impregnated state in cord, embedding the thus treated cords in rubber and vulcanizing them, and have a cord strength in rubber of not less than 8.0 g/d. They provide improved fatigue resistance under repetitive compressive strain without lowering strength in the dipping and vulcanization.
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公开(公告)号：DE69108495T2
公开(公告)日：1995-10-19
申请号：DE69108495
申请日：1991-09-11
Applicant: BRIDGESTONE CORP
Inventor： INADA NORIO , IWASAKI SHIZUO , KIKUCHI MICHITSUGU
Abstract: A pneumatic radial tire has a belt comprised of a plurality of belt layers, in which at least one belt layer (4) is formed by arranging particular twisted cords, which are obtained by twisting particular filament-resin composite bodies (1), at a particular defined end count. In this tire, the weight is light, the rolling resistance and steering stability as well as the resistances to bending of belt cord during rapid turning and breaking of belt cord during running on bad roads are considerably improved.
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公开(公告)号：DE69108495D1
公开(公告)日：1995-05-04
申请号：DE69108495
申请日：1991-09-11
Applicant: BRIDGESTONE CORP
Inventor： INADA NORIO , IWASAKI SHIZUO , KIKUCHI MICHITSUGU
Abstract: A pneumatic radial tire has a belt comprised of a plurality of belt layers, in which at least one belt layer (4) is formed by arranging particular twisted cords, which are obtained by twisting particular filament-resin composite bodies (1), at a particular defined end count. In this tire, the weight is light, the rolling resistance and steering stability as well as the resistances to bending of belt cord during rapid turning and breaking of belt cord during running on bad roads are considerably improved.
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公开(公告)号：DE68904441T2
公开(公告)日：1993-05-13
申请号：DE68904441
申请日：1989-03-02
Applicant: BRIDGESTONE CORP
Inventor： IMAI ISAMU , NISHIKAWA TOMOHISA , INADA NORIO
Abstract: In a pneumatic radial tire, cords used in at least one carcass ply (4) and/or at least one additional cord reinforcing layer (5) disposed on a belt layer (2) are made from composite fiber having a core of polyester and a sheath of polyamide. The polyester has an intrinsic viscosity of at least 0.8 and the weight ratio of the core to the core + sheath is 0.3-0.9.
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