公开(公告)号：FR2636081A1

公开(公告)日：1990-03-09

申请号：FR8911606

申请日：1989-09-05

Applicant: BRIDGESTONE CORP

Inventor： SATO MAKI ,  OSHIMA KAZUO ,  IWASAKI SHIZUO

IPC: B60C9/00 ,  B60C9/20 ,  C08J5/06

Abstract: Tyre containing cords made of crosslinked poly(vinyl alcohol) filaments. The casing and the belt of a tyre can be reinforced by employing a cord of filaments made of synthetic fibres of crosslinked, high-strength poly(vinyl alcohol), the cord having a wear resistance (S/d) satisfying the equation: S >/= 14.5 - 12 N gamma where N gamma is a torsion coefficient, when a test is performed on the cord withdrawn from the tyre, this cord containing at least 5 % by weight of a component which is insoluble in dimethyl sulphoxide at 120 DEG C. Application: increasing the durability of tyres for passenger vehicles.

公开(公告)号：DE3828251A1

公开(公告)日：1989-03-02

申请号：DE3828251

申请日：1988-08-19

Applicant: BRIDGESTONE CORP

Inventor： OSHIMA KAZUO ,  IWASAKI SHIZUO

IPC: B60C9/00 ,  B60C9/20 ,  D02G3/48

Abstract: A pneumatic tire is reinforced with cords made of polyvinyl alcohol based fibers, and meets the following requirements: (1) A tenacity, S (g/d) of the cords taken out from the tire meets a relation: S>/=14.5-12NT in which NT is a coefficient of twist, which is represented by NT=Nx 2ROOT 0.139xD/ rho x10-3. N, D and rho are a number of twist (turns/10 cm), a half of a total denier of the cords, and a specific density of the cords, respectively. (2) A tenacity-retaining percentage of the cords in an absolutely dried state is not less than 90% of that before the treatment with boiling water. The absolutely dried state means that after the cord is treated with boiling water at 120 DEG C. while being maintained at a constant length, the cord is dried.

公开(公告)号：FR2625235A1

公开(公告)日：1989-06-30

申请号：FR8817138

申请日：1988-12-23

Applicant: BRIDGESTONE CORP

Inventor： NISHIKAWA TOMOHISA ,  OSHIMA KAZUO

IPC: C08J5/06 ,  D02G3/40 ,  D02G3/48 ,  D06M15/693

Abstract: Nylon cords having a yarn strength of not less than 12 g/d are subjected to a stretch heating treatment under specified conditions before the dipping and then dipped in a dipping solution having a particular composition, whereby the strength and adhesion force of the resulting dipped cords are considerably improved for use in large size tires.

公开(公告)号：FR2619532A1

公开(公告)日：1989-02-24

申请号：FR8811061

申请日：1988-08-19

Applicant: BRIDGESTONE CORP

Inventor： OSHIMA KAZUO ,  IWASAKI SHIZUO

IPC: B60C9/00 ,  B60C9/20 ,  D02G3/48

Abstract: A pneumatic tire is reinforced with cords made of polyvinyl alcohol based fibers, and meets the following requirements: (1) A tenacity, S (g/d) of the cords taken out from the tire meets a relation: S>/=14.5-12NT in which NT is a coefficient of twist, which is represented by NT=Nx 2ROOT 0.139xD/ rho x10-3. N, D and rho are a number of twist (turns/10 cm), a half of a total denier of the cords, and a specific density of the cords, respectively. (2) A tenacity-retaining percentage of the cords in an absolutely dried state is not less than 90% of that before the treatment with boiling water. The absolutely dried state means that after the cord is treated with boiling water at 120 DEG C. while being maintained at a constant length, the cord is dried.

公开(公告)号：FR2625235B1

公开(公告)日：1992-10-09

申请号：FR8817138

申请日：1988-12-23

Applicant: BRIDGESTONE CORP

Inventor： NISHIKAWA TOMOHISA ,  OSHIMA KAZUO

IPC: C08J5/06 ,  D02G3/40 ,  D02G3/48 ,  D06M15/693 ,  D06M15/70 ,  D06M15/19 ,  B29D30/38 ,  B29D30/40 ,  B29D30/44

Abstract: Nylon cords having a yarn strength of not less than 12 g/d are subjected to a stretch heating treatment under specified conditions before the dipping and then dipped in a dipping solution having a particular composition, whereby the strength and adhesion force of the resulting dipped cords are considerably improved for use in large size tires.

公开(公告)号：FR2619532B1

公开(公告)日：1990-08-10

申请号：FR8811061

申请日：1988-08-19

Applicant: BRIDGESTONE CORP

Inventor： OSHIMA KAZUO ,  IWASAKI SHIZUO

IPC: B60C9/00 ,  B60C9/20 ,  D02G3/48

Abstract: A pneumatic tire is reinforced with cords made of polyvinyl alcohol based fibers, and meets the following requirements: (1) A tenacity, S (g/d) of the cords taken out from the tire meets a relation: S>/=14.5-12NT in which NT is a coefficient of twist, which is represented by NT=Nx 2ROOT 0.139xD/ rho x10-3. N, D and rho are a number of twist (turns/10 cm), a half of a total denier of the cords, and a specific density of the cords, respectively. (2) A tenacity-retaining percentage of the cords in an absolutely dried state is not less than 90% of that before the treatment with boiling water. The absolutely dried state means that after the cord is treated with boiling water at 120 DEG C. while being maintained at a constant length, the cord is dried.

公开(公告)号：JP2005068604A

公开(公告)日：2005-03-17

申请号：JP2003301395

申请日：2003-08-26

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： OSHIMA KAZUO ,  HONDA TOSHIO ,  SATO TAKAYUKI

IPC: B60C9/00 ,  D06M11/00 ,  D06M11/155 ,  D06M15/41 ,  D06M15/693

Abstract: PROBLEM TO BE SOLVED: To provide an adhesive liquid for a rubber-reinforcing cord having remarkably suppressed smoke evolution and decreased resorcinol monomer content while keeping the adhesion performance.
SOLUTION: The adhesive liquid for a rubber-reinforcing cord contains a resorcinol-formaldehyde novolak condensate produced by reacting resorcinol with formaldehyde in water in the presence of a molecular weight modifier and an acidic catalyst and having an unreacted resorcinol monomer content of ≤15 mass%. The novolak condensate is preferably produced by reacting resocinol with formaldehyde in water in the presence of a molecular weight modifier and an acidic catalyst and washing the precipitated condensate with a resocinol washing liquid.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种橡胶增强帘线的粘合剂液体，其具有显着抑制烟雾释放和降低间苯二酚单体含量，同时保持粘合性能。 解决方案：用于橡胶增强帘线的粘合剂液体含有间苯二酚 - 甲醛酚醛清漆缩合物，其在分子量调节剂和酸性催化剂存在下，使间苯二酚与甲醛在水中反应，并且具有未反应的间苯二酚单体含量≤ 15质量％。 酚醛清漆缩合物优选通过使Resocinol与甲醛在水中在分子量调节剂和酸性催化剂的存在下反应并用resocinol洗涤液洗涤沉淀的冷凝物来制备。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2002097310A

公开(公告)日：2002-04-02

申请号：JP2000291081

申请日：2000-09-25

Applicant: BRIDGESTONE CORP

Inventor： OSHIMA KAZUO

IPC: B60C1/00 ,  B60C11/00 ,  C08K5/09 ,  C08K5/13 ,  C08K5/17 ,  C08K5/3412 ,  C08K5/3437 ,  C08K5/3445 ,  C08K5/3462 ,  C08K7/02 ,  C08L21/00

Abstract: PROBLEM TO BE SOLVED: To provide a tire improved in dry performance without deteriorating its wet performance. SOLUTION: This tire having a tread portion is characterized by having microflaws each with an average length of

公开(公告)号：JP2002096606A

公开(公告)日：2002-04-02

申请号：JP2000291082

申请日：2000-09-25

Applicant: BRIDGESTONE CORP

Inventor： OSHIMA KAZUO

IPC: B60C9/00 ,  B60C9/20 ,  B60C9/22

Abstract: PROBLEM TO BE SOLVED: To provide a tire which is light in weight and excels in handling stability, vibrational riding comfortability and road noise control performance. SOLUTION: Characteristics of this tire are that it possesses belt layers and belt-reinforcing layers arranged outside the belt layers in the radial direction of the tire, that cords embedded in the belt layers consist of polyester-type monofilament cords, and that the cords embedded in the belt-reinforcing layers consisting of polyester-type twisted cords.

公开(公告)号：JPH01174627A

公开(公告)日：1989-07-11

申请号：JP33028687

申请日：1987-12-28

Applicant: BRIDGESTONE CORP

Inventor： NISHIKAWA TOMOHISA ,  OSHIMA KAZUO

IPC: D02G3/40 ,  D02G3/48 ,  D06M15/693 ,  D06M101/00 ,  D06M101/16 ,  D06M101/30 ,  D06M101/34

Abstract: PURPOSE:To prevent the lowering of the strength of a dip cord and the lowering of the adhesive strength of cord and rubber, by heat-treating a twist cord of super-strong 6-nylon fiber under specific condition under tension and applying an adhesive to the cord. CONSTITUTION:A twist cord (composed of 6-nylon fiber having a stock fiber strength of >=12g/d) is treated in a stretch heat-treatment zone 1 under a condition satisfying the formula T>=84/S-80 [T is temperature ( deg.C) and S is tension (g/d)] and then subjected to dip treatment. The dipping liquid satisfies the relationship of y>=-0.75x-0.274Z +4.282Z+16.8 [x is solid content (wt.%) in the dipping liquid; y is ratio (wt.%) of the total weight of resorcinol and formaldehyde to the latex in the dipping liquid; Z is ratio (wt.%) of vinylpyridine latex based on the total weight of vinylpyridine latex and styrene butadiene copolymer latex in the latex of the dipping liquid].