公开(公告)号：WO0238667A3

公开(公告)日：2003-03-20

申请号：PCT/JP0109552

申请日：2001-10-31

Applicant: BRIDGESTONE CORP ,  TORATANI HIROTOSHI ,  IWAFUNE SEIICHIRO ,  KIJIMA KEN ,  MAEDA HIROMI ,  HASHIMOTO TAKATSUGU ,  YANAGISAMA KAZUHIRO

Inventor： TORATANI HIROTOSHI ,  IWAFUNE SEIICHIRO ,  KIJIMA KEN ,  MAEDA HIROMI ,  HASHIMOTO TAKATSUGU ,  YANAGISAMA KAZUHIRO

IPC: C08K3/00 ,  B29B13/06 ,  C08C1/075 ,  C08C1/12 ,  C08K3/22 ,  C08K5/10 ,  C08K5/12 ,  C08K5/25 ,  C08L7/00 ,  C08L7/02 ,  C08J3/00

CPC classification number: B29B13/06 ,  B29K2007/00 ,  B29K2105/0064 ,  B29K2105/16 ,  C08C1/12 ,  C08K3/22 ,  C08K5/10 ,  C08K5/25 ,  C08L7/02 ,  C08L7/00

Abstract: Provided is a natural rubber obtained by drying a gathered natural rubber latex without coagulating, wherein a drum dryer and/or a conveyor type dryer are used for drying. Further, provided are a production process for a natural rubber-filler mixture prepared by adding at least one of carbon black and inorganic fillers to a natural rubber latex, a natural rubber added a viscosity stabilizer comprising hydrazide compounds or esters of aromatic or aliphatic polycarboxylic acid derivatives to these natural rubber and natural rubber-filler mixture, and a rubber composition which is prepared using the above natural rubbers and which is excellent in productivity, abrasion resistance and fracture resistance.

Abstract translation: 提供通过干燥聚集的天然橡胶胶乳而不凝结而获得的天然橡胶，其中使用滚筒式干燥机和/或输送式干燥机进行干燥。 此外，提供了通过向天然橡胶胶乳中加入至少一种炭黑和无机填料制备的天然橡胶填料混合物的制备方法，天然橡胶中加入了包含酰肼化合物或芳族或脂族多元羧酸酯的粘度稳定剂 这些天然橡胶和天然橡胶填料混合物的衍生物，以及使用上述天然橡胶制备并且生产率，耐磨性和耐断裂性优异的橡胶组合物。

公开(公告)号：AU1098802A

公开(公告)日：2002-05-21

申请号：AU1098802

申请日：2001-10-31

Applicant: BRIDGESTONE CORP

Inventor： TORATANI HIROTOSHI ,  IWAFUNE SEIICHIRO ,  KIJIMA KEN ,  MAEDA HIROMI ,  HASHIMOTO TAKATSUGU ,  YANAGISAMA KAZUHIRO

IPC: C08K3/00 ,  B29B13/06 ,  C08C1/075 ,  C08C1/12 ,  C08K3/22 ,  C08K5/10 ,  C08K5/12 ,  C08K5/25 ,  C08L7/00 ,  C08L7/02

Abstract: Provided is a natural rubber obtained by drying a gathered natural rubber latex without coagulating, wherein a drum dryer and/or a conveyor type dryer are used for drying. Further, provided are a production process for a natural rubber-filler mixture prepared by adding at least one of carbon black and inorganic fillers to a natural rubber latex, a natural rubber added a viscosity stabilizer comprising hydrazide compounds or esters of aromatic or aliphatic polycarboxylic acid derivatives to these natural rubber and natural rubber-filler mixture, and a rubber composition which is prepared using the above natural rubbers and which is excellent in productivity, abrasion resistance and fracture resistance:

公开(公告)号：GB2202807B

公开(公告)日：1991-06-12

申请号：GB8805170

申请日：1988-03-04

Applicant: BRIDGESTONE CORP

Inventor： HARAKON KATSUYUKI ,  KIJIMA KEN

IPC: B60C9/08 ,  B60C11/00 ,  B60C11/04 ,  B60C11/18

Abstract: A pneumatic radial tire for use in heavy duty vehicles such as an airplane and so on comprises at least one carcass ply as a tire body reinforcement, at least two belt layers as a tread reinforcement, and a tread provided with a pair of main grooves extending circumferentially of the tread at a position ranging from the side end of the tread within 15 DIFFERENCE 40% of tread ground contact width. In this tire, the tread is composed of a tread rubber satisfying a requirement that modulus at 100 DEG C. under 100% elongation of tread rubber constituting each side portion of the tread is lower by a range of 30 DIFFERENCE 80% than that of tread rubber constituting a central portion of the tread.

公开(公告)号：MY136828A

公开(公告)日：2008-11-28

申请号：MYPI20015059

申请日：2001-11-01

Applicant: BRIDGESTONE CORP

Inventor： TORATANI HIROTOSHI ,  IWAFUNE SEIICHIRO ,  KIJIMA KEN ,  MAEDA HIROMI ,  HASHIMOTO TAKATSUGU ,  YANAGISAWA KAZUHIRO

IPC: C08K3/00 ,  B29B13/06 ,  C08C1/075 ,  C08C1/12 ,  C08K3/22 ,  C08K5/10 ,  C08K5/12 ,  C08K5/25 ,  C08L7/00 ,  C08L7/02

Abstract: PROVIDED IS A NATURAL RUBBER OBTAINED BY DRYING A GATHERED NATURAL RUBBER LATEX WITHOUT COAGULATING, WHEREIN A DRUM DRYER AND/OR A CONVEYOR TYPE DRYER ARE USED FOR DRYING. FURTHER, PROVIDED ARE A PRODUCTION PROCESS FOR A NATURAL RUBBERFILLER MIXTURE PREPARED BY ADDING AT LEAST ONE OF CARBON BLACK AND INORGANIC FILLERS TO A NATURAL RUBBER LATEX, A NATURAL RUBBER ADDED A VISCOSITY STABILIZER COMPRISING HYDRAZIDE COMPOUNDS OR ESTERS OF AROMATIC OR ALIPHATIC POLYCARBOXYLIC ACID DERIVATIVES TO THESE NATURAL RUBBER AND NATURAL RUBBER-FILLER MIXTURE, AND A RUBBER COMPOSITION WHICH IS PREPARED USING THE ABOVE NATURAL RUBBERS AND WHICH IS EXCELLENT IN PRODUCTIVITY, ABRASION RESISTANCE AND FRACTURE RESISTANCE.

公开(公告)号：GB2202807A

公开(公告)日：1988-10-05

申请号：GB8805170

申请日：1988-03-04

Applicant: BRIDGESTONE CORP

Inventor： HARAKON KATSUYUKI ,  KIJIMA KEN

IPC: B60C9/08 ,  B60C11/00 ,  B60C11/04 ,  B60C11/18 ,  B60C1/00

Abstract: A pneumatic radial tire for use in heavy duty vehicles such as an airplane and so on comprises at least one carcass ply as a tire body reinforcement, at least two belt layers as a tread reinforcement, and a tread provided with a pair of main grooves extending circumferentially of the tread at a position ranging from the side end of the tread within 15 DIFFERENCE 40% of tread ground contact width. In this tire, the tread is composed of a tread rubber satisfying a requirement that modulus at 100 DEG C. under 100% elongation of tread rubber constituting each side portion of the tread is lower by a range of 30 DIFFERENCE 80% than that of tread rubber constituting a central portion of the tread.

公开(公告)号：MY117666A

公开(公告)日：2004-07-31

申请号：MYPI20012722

申请日：2001-06-11

Applicant: BRIDGESTONE CORP

Inventor： TORATANI HIROTOSHI ,  KIJIMA KEN ,  HASHIMOTO TAKATSUGU

IPC: C08K5/25

Abstract: A PRODUCTION PROCESS FOR A VISCOSITY-STABILIZER-CONTAINING NATURAL RUBBER COMPRISING A STEP OF ADDING A VISCOSITY STABILIZER LIQUID DILUTED WITH A SOLVENT TO A NATURAL RUBBER, AND A VISCOSITY-STABILIZER-CONTAININGNATURAL RUBBER LATEX TO WHICH ADDED IS A VISCOSITY STABILIZER DISSOLVED IN AN ALIPHATIC CHAIN COMPOUND, ANDA VISCOSITY-STABILIZER-CONTAINING NATURAL RUBBER OBTAINED BY ADDING A VISCOSITY STABILIZER LIQUID DILUTED WITH ASOLVENT TO A NATURAL RUBBER AFTER IT WAS COAGULATED.

公开(公告)号：ID30534A

公开(公告)日：2001-12-20

申请号：ID20010461

申请日：2001-06-15

Applicant: BRIDGESTONE CORP

Inventor： TORATANI HIROTOSHI ,  KIJIMA KEN ,  HASHIMOTO TAKATSUGI

IPC: C08K5/25

公开(公告)号：FR2611600A1

公开(公告)日：1988-09-09

申请号：FR8802805

申请日：1988-03-04

Applicant: BRIDGESTONE CORP

Inventor： HARAKON KATSUYUKI ,  KIJIMA KEN

IPC: B60C9/08 ,  B60C11/00 ,  B60C11/04 ,  B60C11/18 ,  B60C1/00 ,  B60C11/06

Abstract: A pneumatic radial tire for use in heavy duty vehicles such as an airplane and so on comprises at least one carcass ply as a tire body reinforcement, at least two belt layers as a tread reinforcement, and a tread provided with a pair of main grooves extending circumferentially of the tread at a position ranging from the side end of the tread within 15 DIFFERENCE 40% of tread ground contact width. In this tire, the tread is composed of a tread rubber satisfying a requirement that modulus at 100 DEG C. under 100% elongation of tread rubber constituting each side portion of the tread is lower by a range of 30 DIFFERENCE 80% than that of tread rubber constituting a central portion of the tread.

公开(公告)号：JPH0840006A

公开(公告)日：1996-02-13

申请号：JP19628494

申请日：1994-07-29

Applicant: BRIDGESTONE CORP

Inventor： KIJIMA KEN ,  AOKI HIROFUMI

IPC: B60C1/00 ,  B29D30/06 ,  B29K105/04 ,  B60C11/00 ,  C08L21/00

Abstract: PURPOSE:To reconcile performance on the ice and abrasion resistance by limiting an average foam diameter of a foaming rubber layer of a tread part, and setting the area average diameter standard deviation not less than a prescribed value. CONSTITUTION:A pneumatic tire 1 has a tread 3 to cover mutual shoulders 4 of a crown part 2a of a tire case 2. A foaming rubber layer having independent foams on which an average diameter of foams observed in a cross section is 5 to 50mum and an area average diameter standard deviation S.DAREA expressed by an expression I is not less than 25mum, is used as a tread part 3. Herein, (di) represents a foam diameter. A bar (d) is expressed by an expression II, and (ni) is the number of foams. Rsi represents a frequency (the area ratio), and is expressed by an expression III. Since the average foam diameter and the area average diameter standard deviation are limited in this way, performance on the ice and abrasion resistance can be reconciled with each other.

公开(公告)号：JPS6315836A

公开(公告)日：1988-01-22

申请号：JP16057986

申请日：1986-07-07

Applicant: BRIDGESTONE CORP

Inventor： SAITO TADASHI ,  KIJIMA KEN ,  OHASHI MASAYUKI

IPC: B29D30/52 ,  B29K9/00 ,  B60C1/00 ,  C08L7/00 ,  C08L9/00 ,  C08L21/00

Abstract: PURPOSE:To obtain a tire for a heavy duty vehicle having excellent abrasion resistance and breaking resistance, by using a blended rubber of a given wt. ratio comprising a polybutadiene rubber having a specified property and a natural rubber and/or a polyisoprene rubber as a tread. CONSTITUTION:A polybutadiene rubber having at least 90% or more of cis-1,4 bondings, whose weight-average molecular weight (Mw) is in the range of 500,000-1,200,000, the ratio of Mw to number-average molecular weight (Mn) is in the range of 5-15 and values of Mw and Mn has a relation represented by the equation is prepd. 10-50pts.wt. this polybutadiene rubber and 90-50pts. wt. natural rubber and/or polyisoprene are blended. The blended rubber thus obtd. is used as a tread rubber to prepare a tire for a heavy duty vehicle. The obtd. tire is suitably used for a tire for a truck, a bus or an airplane.